Kereskedelmi, irodai és ipari

Product Description
STM32F401CEU6 core board V3.0
Freq. 84Mhz ROM:64KB RAM:256KB
STM32F411CEU6 core board V3.0
Freq. 100MHZ ROM:128KB RAM:512KB
Core Board Information
Baidu network disk is not recommended to download data, domestic code cloud is fast
Gitee code cloud information link: https://gitee.com/WeAct-TC/MiniF4-STM32F4x1.git
Github information link: https://github.com/WeActTC/MiniF4-STM32F4x1.git
Baidu network disk link: https://pan.baidu.com/s/1vW9H-q9C5n2yVAEp38pw5A
Extract code: gxnx
STM32 download and burn part of the tutorial: https://www.weact-tc.cn/2019/11/30/STM32Download/
Part of MicroPython tutorial: https://www.weact-tc.cn/2020/01/01/micropython/
MicroPython compilation information: https://github.com/WeActTC/WeAct_F411CE.git
25MHZ high speed crystal oscillator & 32.768Khz 6PF low speed crystal oscillator
V3.0 version began to use lead-free process, the pin header is gold-plated pin header, more environmentally friendly
Flash pads have been reserved and USBDisk && FATFFS routines are provided
WeAct HID FW Bootloader has been burned out of the factory. It is a special factory test version, and hex is not provided.
Support MicroPython programming, provide available MicroPython firmware, see the link for configuration files, but do not provide technical answers!
Support Arduino programming, see Github https://github.com/stm32duino/Arduino_Core_STM32 for details
Boards with version V1.3 and above have 3 buttons, reset button, BOOT0 button, and user buttons.
How to enter ISP mode
Method 1: Press and hold the BOOT0 button and the reset button under the power-on state, then release the reset button, and release the BOOT0 button after 0.5 seconds
Method 2: Hold down the BOOT0 key when power is off, and release the BOOT0 key 0.5S after power on
DFU mode: just use the data cable to connect to the computer, if there is a problem of unrecognized, you can properly heat the chip (25 ° C), and then re-enter the ISP mode
Serial port mode: use USB to serial port to connect PA9 and PA10 of the core board
Software: STM32CubeProg.
WeAct HID FW Bootloader
No need for USB to serial port, no debugger, no computer driver, just a TYPE-C data cable to complete the firmware download
For details, see Code Cloud / Soft / WeAct HID FW Bootloader /
How to enter HID Bootloader after writing to APP
Press and hold the KEY button, click the reset button, LED C13 flashes, release the KEY button to enter

Product Description
STM32F401CEU6 core board V3.0
Freq. 84Mhz ROM:64KB RAM:256KB
STM32F411CEU6 core board V3.0
Freq. 100MHZ ROM:128KB RAM:512KB
Core Board Information
Baidu network disk is not recommended to download data, domestic code cloud is fast
Gitee code cloud information link: https://gitee.com/WeAct-TC/MiniF4-STM32F4x1.git
Github information link: https://github.com/WeActTC/MiniF4-STM32F4x1.git
Baidu network disk link: https://pan.baidu.com/s/1vW9H-q9C5n2yVAEp38pw5A
Extract code: gxnx
STM32 download and burn part of the tutorial: https://www.weact-tc.cn/2019/11/30/STM32Download/
Part of MicroPython tutorial: https://www.weact-tc.cn/2020/01/01/micropython/
MicroPython compilation information: https://github.com/WeActTC/WeAct_F411CE.git
25MHZ high speed crystal oscillator & 32.768Khz 6PF low speed crystal oscillator
V3.0 version began to use lead-free process, the pin header is gold-plated pin header, more environmentally friendly
Flash pads have been reserved and USBDisk && FATFFS routines are provided
WeAct HID FW Bootloader has been burned out of the factory. It is a special factory test version, and hex is not provided.
Support MicroPython programming, provide available MicroPython firmware, see the link for configuration files, but do not provide technical answers!
Support Arduino programming, see Github https://github.com/stm32duino/Arduino_Core_STM32 for details
Boards with version V1.3 and above have 3 buttons, reset button, BOOT0 button, and user buttons.
How to enter ISP mode
Method 1: Press and hold the BOOT0 button and the reset button under the power-on state, then release the reset button, and release the BOOT0 button after 0.5 seconds
Method 2: Hold down the BOOT0 key when power is off, and release the BOOT0 key 0.5S after power on
DFU mode: just use the data cable to connect to the computer, if there is a problem of unrecognized, you can properly heat the chip (25 ° C), and then re-enter the ISP mode
Serial port mode: use USB to serial port to connect PA9 and PA10 of the core board
Software: STM32CubeProg.
WeAct HID FW Bootloader
No need for USB to serial port, no debugger, no computer driver, just a TYPE-C data cable to complete the firmware download
For details, see Code Cloud / Soft / WeAct HID FW Bootloader /
How to enter HID Bootloader after writing to APP
Press and hold the KEY button, click the reset button, LED C13 flashes, release the KEY button to enter

Description
Nine-axis modules (three-axis gyroscope triaxial accelerometer three-axis magnetic field)
Immersion Gold PCB process
Chip: ITG3205 ADXL345 HMC5883L
Power supply :3-5v
Means of communication: IIC communication protocol (fully compatible with 3-5v system containing LLC circuit)
Size: 2.2cm * 1.7cm

Product Description
Product model number: XH-M567
Chip type: TPA3116D2
Chip protection: overvoltage undervoltage superheat DC detection short circuit
Supply voltage: DC 12V to 24V
Output power: 80W X 2
Power efficiency > 90%
Number of channels: double channel output
Size: 60*32*14mm (length*width*height)
Weight: about 40g
TPA3116D2 chip features:
1. High-efficiency class D operation, with > 90% power efficiency and low idle loss characteristics, advanced modulation system configuration, multiple switching frequencies, and AM interference prevention;
2. The TPA3116D2 advanced oscillator / PLL circuit uses multiple switching frequency options to suppress AM interference. When used with the master-slave mode option, multiple devices can also be synchronized;
3. The TPA3116D2 device provides comprehensive protection against short circuit, overheating, overvoltage, undervoltage and DC faults. In the event of an overload condition, the device reports the fault condition to the processor, thereby avoiding its own damage.
Note:
The general power supply and power amplifier should be kept at a certain distance to avoid electromagnetic interference. It is better to use a high quality power supply and the power supply will be stable. If you use a power supply such as a transformer, it is best to cover the transformer with a metal cover to prevent electromagnetic interference.
Package included:
1 X XH-M567 double channel digital amplifier board

Description
nstructions for use: Press the "Set" button to cycle through 4 display modes, the corresponding indicator will be on or off, press the "OK" button to save and exit, and press the "OK" button alone to turn on and off the backlight of the LCD screen.

Instructions:

(1) Adjust the "constant voltage potentiometer ADJ-V" to make the output voltage reach the voltage value you want;
(2) Directly short-circuit the output terminal of the module (just find a thick wire to short-circuit the output terminal), at this time adjust the "constant current potentiometer ADJ-I" to make the displayed current value reach the preset overcurrent protection value; ( For example, the current value displayed by the on-board ammeter is 4A, then the maximum current of the module is limited to 4A, and the red indicator light is on when the current reaches 4A)

(3) Connect the load and work.
2. Use as a battery charger
Instructions:

(1) Determine the floating voltage and charging current of the battery; (If the lithium battery parameter is 3.7V/2200mAh, then the floating voltage is 4.2V, and the maximum charging current is 1C, which is 2200mA)
(2) Under no-load conditions, adjust the "constant voltage potentiometer ADJ-V" to make the output voltage reach the float voltage;
(3) Directly short-circuit the output terminal of the module (just find a thick wire to short-circuit the output terminal), at this time adjust the "constant current potentiometer ADJ-I" to make the displayed current value reach the preset charging current value;
(4) The default charging current of the rechargeable lamp is 0.1 times the charging current; (The current of the battery is gradually reduced during the charging process, and gradually changes from constant current charging to constant voltage charging. If the charging current is set to 1A, then when the charging current is set to 1A, When the charging current is less than 0.1A, the blue light is off and the green light is on, and the battery is fully charged at this time)
(5) Connect the battery and charge it.
3. Use as a constant current LED driver module

(1) Determine the operating current and maximum operating voltage you need to drive the LED;
(2) Under no-load conditions, adjust the "constant voltage potentiometer ADJ-V" to make the output voltage reach the LED operating voltage;
(3) Directly short-circuit the output terminal of the module (just find a thick wire to short-circuit the output terminal), at this time adjust the "constant current potentiometer ADJ-I" to make the displayed current value reach the preset LED working current;

(4) Connect the LED and test the machine.


Note that the constant current adjustable current must be in constant current mode only when the actual load output current is greater than the set current, otherwise it will work in a constant voltage state. It is not the current that is adjusted to 2A, that is, it will become 2A if any equipment is connected. Know.

Description
2X50W Tda7492 D Class High-Power Digital Amplifier Board Amp W/Radiator New

The use of high-speed SMT placement machine, over temperature reflow, the performance is very stable,

With 4 model GAIN parts.can auto work on different voltage.

Ultra-small 70X57MM

Comes with super output short-circuit and over-temperature overload and prevent the impact of the switch machine

STMicroelectronics TDA7492 chip.low price. but with big power and good sound quality output

Note: When the speaker impedance is 4 ohms, the operating voltage must be less than 18V, the speaker impedance is 6 ohms, the operating voltage can not exceed 24V, the speaker impedance is 8 ohms, the working voltage can not exceed 26V, the power not to reverse the polarity.

Specification:

Power supply: Single-voltage 10-26V DC

Maximum power:50W*2/8 Ohm

Mono BTL power 100W / 4 Ohms

Size:70*57mm*21mm
Quantity: 1pc

Product Description
Size: 81mm*81mm*1.6mm (thickness)
Thickness: 1.6mm Material: FR4 military grade
PCB board color: blue, digital tube display: red
Power supply voltage: 5V (powered through the miniUSB interface, not through the battery to power the entire board)
Other accessories: four studs for consolidation

Baby function description:
1. Year, month, day, time, temperature wheel display: a new upgrade to the wheel display, you don’t need to press the button again if you want to see the date and temperature, it's more convenient and simple!
2. Hourly timekeeping: When the hourly timekeeping function is turned on, the time will be reported from 8 am to 22:00 every day, and the time will not be reported when sleeping at night. Of course, you can also turn off the hourly timekeeping function!
3. Alarm clock: There is an alarm clock, and you can set the alarm time at will. In the previous version, many children's shoes said that the alarm time was too long, but many children's shoes said that the alarm time was too short. When the boss was in a dilemma, he decided to make the alarm time adjustable!
4. Temperature alarm: When the ambient temperature is lower than the set minimum temperature or higher than the set maximum temperature, an alarm will be issued to remind you to turn on or off the air conditioner to keep your home at a moderate temperature!
5. Power down time: After adjusting the preset time, even if the power is down, there is no need to reset the time after power on again.
6. LED display options: There are as many as 10 display patterns on the outer ring LED.

Product name: ESP32-CAM camera module
Product model: HW-297
Working voltage: DC 5V
Product size: 27*40.5*4.5mm (excluding pin headers)
Product application: This module can be widely used in various IoT applications, suitable for home smart devices, industrial wireless control, wireless monitoring, QR wireless identification, wireless positioning system signals and other IoT applications. It is packaged in DIP and can be used directly by plugging in the bottom plate.
Test environment: camera model: OV2640 XCLK: 20MHz, the module transmits pictures to the computer browser via WiFi

Product Parameters
Resolution: 500dpi
Supply current: <60mA
Supply voltage: 3.3V
Fingerprint image entry time: <1.0 seconds
Peak current: <60mA
Window area: 15.3x18.2MM
Communication Interface: USB/UART

How the Module Works
1. Fingerprint features
The fingerprint algorithm extracts features from the acquired fingerprint image and represents the fingerprint information. The storage, comparison and search of fingerprints are all done by operating fingerprint features.
2. Fingerprint processing includes two processes: fingerprint registration process and fingerprint matching process (in which fingerprint matching is divided into fingerprint comparison (1:1) and fingerprint search (1:N) two ways).

When the fingerprint is registered, two fingerprints are entered for each fingerprint, and the input image is processed twice. The synthesis module is stored in the module.
When the fingerprint is matched, the fingerprint sensor is used to input the fingerprint image to be verified and processed, and then it is compared with the fingerprint module in the module (if it is matched with a module specified in the module, it is called fingerprint comparison mode, ie, 1:1 mode. If matching with multiple modules is called fingerprint search, ie 1:N mode, the module gives the matching result (pass or fail).

Product Introduction:
1.Size: 4.1*1.6cm
2.Board Thickness:1.6mm
3.Operating Frequency:2.405-2.485GHz
4.Wireless Transmission Speed Rate:250Kbaud
5.Power Consumption:<20mA (receiving);<25mA (transmission)
Features:
1.Lead Out 8 IO Ports
2.Debug Pin
3.Matching Firmware To Achieve Analyzer Function

Product Description
1.The module have MICRO USB and serial port , so they can communicate with PC and other device conveniently.
2.The normal working voltage for modules is 5V.And module of ICSE014A have a power interface of 5V. Parameters are as follows:

ICSE012A ICSE013A ICSE014A Unit Remark
CC 4 2 8 channel countof module
I 400 250 700 mA working current
U 5 5 5 V input voltage
√ √ √ whether have serial port
9600 9600 9600 bit/s baud rate ofserialport
F 1000 1000 1000 Hz Module control frequency
× × √ Whether have power
Interface:
Modules all have Micro USB and serial port . Read following for details:

1.Micro USB: Standard micro USB mother mouth.
2.TX : Transmit
3.RX : Receive
4.5V : Volt current condenser
5.GND : Ground
6.Power Interface : Only ICSE014A have . Interface is used when Micro USB cannot give enough power.
Usage method:
USB usage method
Module connect with PC through USB . The connection method is as follows:
1.Then open ”Relay Board Manager” to operate the module . Read ” RelayBoardManager_Reference” for details of the software.

Serial port usage method
Module can communicate with other device directly through serial port .
Module can receive single byte from upper monitor ( baud rate 9600):

Upper Monitor 0x50 0x51
ICSE012A 0xAB
ICSE013A 0xAD
ICSE014A 0xAC
Module will turn to normal work state after receive “0x51” . Then every data byte will control the relay directly . Each bit controls a realy ( ‘0' mark start , ‘1' mark stop ) . Read following for details:
Bit ICSE012A ICSE013A ICSE014A Remark
0 √ √ √ Control the relay K1
1 √ √ √ Control the relay K2
2 √ × √ Control the relay K3
3 √ × √ Control the relay K4
4 × × √ Control the relay K5
5 × × √ Control the relay K6
6 × × √ Control the relay K7
7 × × √ Control the relay K8
Package Included:

1 x 4CH MICRO USB 5V 4-Channel Relay Module USB Control Relay Module Serial Port 4 Way

Description
ADC Bit rate: 16 Bit

Interface Type: I2C
Channels: 4 Channel AN0 AN1 AN2 AN3 or 2 differential inputs
Input voltage: 2.0-5.5v
Channel input voltage :0-VDD
Continuous Mode: Only 150μA
Single-Shot Mode: Auto Shut-Down
PROGRAMMABLE DATA RATE:8sps-860sps
Input range programmed control, 7 types input ranges:
-0.256V ~ 0.256V, -0.512V ~ 0.512V, -1.024V ~ 1.024V,
-2.048V ~ 2.048V, -4.096V ~ 4.096 V, -6.144V ~ 6.144V
I2C 7-bit addresses between 0x48-0x4B
Size:18mm*28mm


Applications

Portable instrumentation
Consumer goods
Battery monitoring
Temperature measurement
Factory automation and process controls

Raspberry Pi 3 Case
Note: Raspberry Pi board is not included.
Item Description:
Material: Aluminum alloy
Color: Black
Compatible with: Raspberry Pi 3 Model B ,Raspberry Pi 3 Model B
Features:Passive cooling architecture design can reach perfect heat dissipation.
Features:
Ultra-thin design
Easy to install
Fast Heat dissipation
Silence Fan without noise
Smooth and straight aluminum material
All ports and slots of the case can match with Raspberry Pi 3 Model B perfectly
Packing List:
Aluminum alloy Case x 1pcs
Assembly screw x 1 set
Thermal silica x 1 set
Screwdriver x 1pcs
Raspberry Pi 4 Case
Note: Raspberry Pi board is not included.
Ultra-thin design
Easy to install
Fast Heat dissipation
Smooth and straight aluminum material
All ports and slots of the case can match with Raspberry Pi 4 Computer Model B perfectly
Open case design, you don't need to worry it will effect wifi signal any more
Reinforced aluminum material, lightweight and durable, long-lasting stainles
We use silicon cooling pad (the thickness is only 0.5mm) to touch the shell body to dissipate heat. You can use the CPU grease to relace the silicon colling pad to get better heat dissipation.
Dual Fan:
Noise: 18dB
Low Power Consumption Design
Dual Cooling Expericnce, More powerful heat dissipation
Very Quiet Cooling Fan, get rid of the fan noisy
All of the Fans were Tested by Our Engineer, Very Nice Quality Control
Update Thermal Tape Can Make Sure Best Heat Conduction Effect
Packing List
1 x armor case for raspberry pi 4 model B(Case with dual fan)
1 x Screws Pack
1 x Wrench

Raspberry Pi 3 Case
Note: Raspberry Pi board is not included.
Item Description:
Material: Aluminum alloy
Color: Black
Compatible with: Raspberry Pi 3 Model B ,Raspberry Pi 3 Model B
Features:Passive cooling architecture design can reach perfect heat dissipation.
Features:
Ultra-thin design
Easy to install
Fast Heat dissipation
Silence Fan without noise
Smooth and straight aluminum material
All ports and slots of the case can match with Raspberry Pi 3 Model B perfectly
Packing List:
Aluminum alloy Case x 1pcs
Assembly screw x 1 set
Thermal silica x 1 set
Screwdriver x 1pcs
Raspberry Pi 4 Case
Note: Raspberry Pi board is not included.
Ultra-thin design
Easy to install
Fast Heat dissipation
Smooth and straight aluminum material
All ports and slots of the case can match with Raspberry Pi 4 Computer Model B perfectly
Open case design, you don't need to worry it will effect wifi signal any more
Reinforced aluminum material, lightweight and durable, long-lasting stainles
We use silicon cooling pad (the thickness is only 0.5mm) to touch the shell body to dissipate heat. You can use the CPU grease to relace the silicon colling pad to get better heat dissipation.
Dual Fan:
Noise: 18dB
Low Power Consumption Design
Dual Cooling Expericnce, More powerful heat dissipation
Very Quiet Cooling Fan, get rid of the fan noisy
All of the Fans were Tested by Our Engineer, Very Nice Quality Control
Update Thermal Tape Can Make Sure Best Heat Conduction Effect
Packing List
1 x armor case for raspberry pi 4 model B(Case with dual fan)
1 x Screws Pack
1 x Wrench

Raspberry Pi 3 Case
Note: Raspberry Pi board is not included.
Item Description:
Material: Aluminum alloy
Color: Black
Compatible with: Raspberry Pi 3 Model B ,Raspberry Pi 3 Model B
Features:Passive cooling architecture design can reach perfect heat dissipation.
Features:
Ultra-thin design
Easy to install
Fast Heat dissipation
Silence Fan without noise
Smooth and straight aluminum material
All ports and slots of the case can match with Raspberry Pi 3 Model B perfectly
Packing List:
Aluminum alloy Case x 1pcs
Assembly screw x 1 set
Thermal silica x 1 set
Screwdriver x 1pcs
Raspberry Pi 4 Case
Note: Raspberry Pi board is not included.
Ultra-thin design
Easy to install
Fast Heat dissipation
Smooth and straight aluminum material
All ports and slots of the case can match with Raspberry Pi 4 Computer Model B perfectly
Open case design, you don't need to worry it will effect wifi signal any more
Reinforced aluminum material, lightweight and durable, long-lasting stainles
We use silicon cooling pad (the thickness is only 0.5mm) to touch the shell body to dissipate heat. You can use the CPU grease to relace the silicon colling pad to get better heat dissipation.
Dual Fan:
Noise: 18dB
Low Power Consumption Design
Dual Cooling Expericnce, More powerful heat dissipation
Very Quiet Cooling Fan, get rid of the fan noisy
All of the Fans were Tested by Our Engineer, Very Nice Quality Control
Update Thermal Tape Can Make Sure Best Heat Conduction Effect
Packing List
1 x armor case for raspberry pi 4 model B(Case with dual fan)
1 x Screws Pack
1 x Wrench

Raspberry Pi 3 Case
Note: Raspberry Pi board is not included.
Item Description:
Material: Aluminum alloy
Color: Black
Compatible with: Raspberry Pi 3 Model B ,Raspberry Pi 3 Model B
Features:Passive cooling architecture design can reach perfect heat dissipation.
Features:
Ultra-thin design
Easy to install
Fast Heat dissipation
Silence Fan without noise
Smooth and straight aluminum material
All ports and slots of the case can match with Raspberry Pi 3 Model B perfectly
Packing List:
Aluminum alloy Case x 1pcs
Assembly screw x 1 set
Thermal silica x 1 set
Screwdriver x 1pcs
Raspberry Pi 4 Case
Note: Raspberry Pi board is not included.
Ultra-thin design
Easy to install
Fast Heat dissipation
Smooth and straight aluminum material
All ports and slots of the case can match with Raspberry Pi 4 Computer Model B perfectly
Open case design, you don't need to worry it will effect wifi signal any more
Reinforced aluminum material, lightweight and durable, long-lasting stainles
We use silicon cooling pad (the thickness is only 0.5mm) to touch the shell body to dissipate heat. You can use the CPU grease to relace the silicon colling pad to get better heat dissipation.
Dual Fan:
Noise: 18dB
Low Power Consumption Design
Dual Cooling Expericnce, More powerful heat dissipation
Very Quiet Cooling Fan, get rid of the fan noisy
All of the Fans were Tested by Our Engineer, Very Nice Quality Control
Update Thermal Tape Can Make Sure Best Heat Conduction Effect
Packing List
1 x armor case for raspberry pi 4 model B(Case with dual fan)
1 x Screws Pack
1 x Wrench

Feature:
Sound quality is very good by using this module.
Wireless Bluetooth audio input and the Max. receiving distance is 10m.
Dual channel of 15W 15W power output.
Applicable speaker impedance: 4/6/8/10 ohm.
Specification:
Chips: TPA3110
Audio Input: Wireless Bluetooth
Max. Receiving Distance: 10M
Power Output: Dual-channel 15W 15W
Applicable Speaker Impedance: 4/6/8/10 ohm
Supply Voltage: DC 10-25V (Recommended 12V 2A; Current should be 1A while voltage is above 12V)
Power Supply Interface: 2.54*3PIN
Speaker Interface: 2.54*2PIN
PCB Board Size: 58 * 38mm / 2.3 * 1.5in

RM065 Trimming Potentiometer Kit with Box
10 values*10pcs=100pcs 1box
RM065 1K(102) 10PCS
RM065 10K(103) 10PCS
RM065 100K(104) 10PCS
RM065 1M(105) 10PCS
RM065 2K(202) 10PCS
RM065 20K(203) 10PCS
RM065 200K(204) 10PCS
RM065 500 ohm (501) 10PCS
RM065 5K(502) 10PCS
RM065 50K(503) 10PCS

Description:
Electronic building block double linear potentiometer module For mixer linear sliding resistance
Wiring instructions: Connect the main controller to the main controller according to the standard interface of the sensor module. The symbol "G" is connected to the "ground", "V" to "5V" and "S" to the "For Arduino" A0 and A1 pins of the main controller. Burn the test program.

Test program:
void setup ()
{
Serial.begin (9600);
}
void loop ()
{
Serial.print ("NUM1 ---");
Serial.print (analogRead (0));
Serial.println ();
Serial.print ("NUM2 ---");
Serial.print (analogRead (1));
Serial.println ();
}

Open the serial monitor, you can see the value changes with the slider slide change

Package Included:
1 x 10K Double Row Slide Potentiometer Simulation Electronic Block Module

Features
1, using CY7C68013A-56 chip: low-power version of the enhanced 51-core, 16KB program data areas, frequency of 48Mhz, 480Mbps high-speed transmission protocol standards, in line with USB2.0 specification, backward compatible with USB1.1.

2, firmware, EEPROM: Complete in-system programming solution with a USB cable directly to download firmware, on-board to provide 16K (24LC128) a large program memory (EEPROM), used as storage VID / PID and the USB firmware, the program space to meet the CY7C68013A needs.

3, all the GPIO pin through the 2.54mm standard leads to very convenient for learners to expand their own design.

4, with the appropriate board firmware can be achieved through the core function of the logic analyzer

5, PDF format, provide the schematic and the Related information.

Package including
1 xCY7C68013A core board

Features:
I2C interface
Power supply voltage: VM=15V max
Output current: Iout=1.2A(average) / 3.2A (peak)
Standby control to save power
CW/CCW/short brake/stop motor control modes
1. Stanby control mode
- I2Cmode: Control TB6612's STBY with I2C protocol
- IO mode:Control TB6612's STBY with "S" pin
2. Shield reset mode
- short: reset with d1 mini (reset at power on or press d1 mini's reset button)
- open: reset by "DTR" pin.
2. I2C address
- Short
x Open

Product Description
Operating Voltage: DC 3-5V
Output voltage: DC 0-1V
Test accuracy: ±1UV INDEX
Current: 0.06mA(typ), 0.1mA(max).
Response wavelength: 200nm-370nm
Work temperature: -20°~85°
Detect UV wavelength:200-370nm
PCB size:28mm*12mm*10mm


Package Included:

1 x UVM-30A UV Ultraviolet Ray Detection Sensor Module 3-5V for Arduino New

Product description
WIFI Bluetooth (ESP-WROOM-32) development board
Cost-effective
Small size, easy to embed into any product
Powerful, support LWIP protocol, freertos
Support three modes: AP, STA, AP STA coexistence mode
Lua programming, allowing you to develop more easily
ESP-WROOM-32 is a universal WiFi-BT-BLE MCU module, powerful, versatile.
This module is the core ESP32 chip, with scalable, adaptive features. Two CPU cores can be individually controlled or powered on. The clock frequency can be adjusted from 80 MHz to 240 MHz. The user can cut off the power to the CPU and use low-power coprocessors to constantly monitor the state of the peripheral for changes or whether certain analog values exceed the threshold. ESP32 also integrates a wealth of peripherals, including capacitive touch sensors, Hall sensors, low-noise sense amplifiers, SD card interface, Ethernet interface, high-speed SDIO / SPI, UART, I2S and I2C.
The ESP-WROOM-32 integrates traditional Bluetooth, Bluetooth Low Energy and Wi-Fi for a wide range of uses: Wi-Fi supports a wide range of communication connections, as well as direct connection to the Internet via a router; Bluetooth allows users to connect their phones Or broadcast BLE Beacon for signal detection. The ESP32 chip sleep current is less than 5 A, making it suitable for battery-powered wearable electronic devices. The ESP-WROOM-32 supports data rates up to 150 Mbps and delivers up to 22 dBm output power through a power amplifier for maximum range wireless communication. As a result, the chip has industry-leading specifications and offers the highest performance in terms of high levels of integration, wireless transmission distance, power consumption and network connectivity.
ESP32's operating system is freeRTOS with LWIP, and built-in TLS 1.2 with hardware acceleration. The chip also supports OTA encryption upgrade, developers can continue to upgrade after the release of the produ

Description
1. Onboard TCS3200 color sensor
2. Support 3V-5V voltage input
3. All the pins of the chip have been led out, and the pins are standard 100mil (2.54mm), which is convenient for dot matrix board
4. PCB size: 31.6(mm)x24.4(mm)

Description
100% brand new and high quality
This is a USB 2.0 to TTL UART 6PIN CP2104 Module Serial Converter
Designed to be used for USB to TTL electronic projects
TTL interface output, Connect MCU easily to your computer
Built-in USB to RS232 Transfer chip
USB specification 2.0 compliant with full-speed 12Mbps
Standard USB type A male and TTL 6pin connector. 6pins for 3.3V, RST, TXD, RXD, GND & 5V
Event character support Line break transmission
USB suspend states supported via SUSPEND pins
Temperature Range: -40? to 85?
Supports Windows 98SE, 2000, XP, Vista, Window7, Mac OS 9, Mac OS X & Linux 2.40
Dimension: 52 mm x 17 mm (LxW)
use the same driver as CP2102 module

Description
1. Input voltage range :3.5-30V Note: 30V maximum voltage limit must be aggressive in order to avoid accidental damage.
2. Output voltage range :3.5-30V (boost mode, the input must be less than or equal to the output voltage).
3. Input Current: 6A maximum 10A output power: 100W.
4. Note: According to the law of conservation of power output current under nominal conditions.
5. UIN * Iin * efficiency = Uout * Iout (UIN: input voltage Iin: input current).
6. Size: 66mm * 42mm * 18mm Weight: 35 g / pcs.
7. The voltmeter accuracy: ± (5 ‰ 1 word).
8. Static power consumption: Typical 15ma
(input voltage output voltage and the digital tube color is closely related to the actual current deviation).
9. IN : Input the cathode IN-: Input negative OUT : the output cathode OUT-: Negative output.


Features:


1: input and output voltage can be alternately displayed.
2: switched on can be freely defined.
3: with a button to turn off the digital control function, reduce power consumption.


Working mode:


Output voltage mode: the default boot display ** output voltage mode. * LED indicator turns off
Input voltage mode: press the switch once to switch to the input voltage mode **. * LED indicator lights
Alternating pattern: Once again press the switch input / output voltage alternating 3S alternately display data
(press again to return to the display mode of the output voltage)


Operation and digital display description:


[0] represents the default the boot display output voltage
[1] represents the default boot display input voltage
[2] represents the default open to input and output voltage are displayed alternately

Long press the button more than 2S digital tube display more information (in this case the key is released),
the module automatically remembers the current state of the default power-on state.

The digital tube close operation: long press button 4s until the digital tube display the contents of the LED is lit,
the display section has been closed. Press the button again to restore the display

Data test (voltmeter turned on):

3.7V turn 5V/2A efficiency of 82.5%
5V to 12V/2A efficiency of 88.4%
7.4V turn 12V/2A efficiency of 90.2%
12V switch 18V/2A efficiency of 93.6%
18V switch 24V/2A efficiency of 95.3%
24V turn 30V/2A efficiency of 97.1%


Summary: The higher the input voltage, the higher the efficiency. Close the voltmeter boost module will get higher efficiency.


Package included：


1PCS x LTC1871 100W 3.5V to 30V Power Supply DC-DC Step up Module LED Voltmeter

Product Description
1).MF RC522 is applied to 13.56MHz contactless card reader communication chips a member of the high level of integration. Is NXP, for "Three Tables" application introduced a low-voltage, low-cost, small size and non-contact chip card reader is a good choice for smart meters and portable handheld devices developed.
2).MF RC522 using advanced modulation and demodulation concept completely integrated in all types of passive 13.56MHz contactless communication methods and protocols. Support ISO14443A multilayer applications. The transmitter portion of its internal communications can drive the reader antenna and ISO 14443A/MIFARE cards and answering machine, no other circuits. The receiver part provides a robust and effective demodulation and decoding circuitry for processing signals ISO14443A compatible transponders. The digital part handles ISO14443A framing and error detection (Parity & CRC). In addition, it supports fast CRYPTO1 encryption algorithm used to verify the MIFARE products. MFRC522 support MIFARE? Higher-speed non-contact communication, two-way data transfer rates up to 424kbit/s.
3).As a new member of the highly integrated 13.56MHz card reader series chip family, MF RC522 MF RC500 and MF RC530 and there are many similarities, but also have many other features and differences. It is the communication between the host and the serial communication using fewer connections, and can be based on different user needs to select one mode SPI, I2C or serial UART (similar to RS232), helps to reduce the connection, reducing the volume of PCB board and reduce costs.
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Applications
1)MF RC522 applicable to all kinds based on ISO / IEC 14443A standard and require application of low-cost, small size, high performance and power of a single non-contact communication.
2)Meter reading;
3)On-board unit;
4)Public transport terminal;
5)The portable handheld device;
6)Contactless public phones.
Parameters
Serial Supply Voltage(VCC):5V
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Mechanical Drawings
Unit:mil
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Description
Model:MIFARE RC522
Sleep Current:<80uA
Peak current:<30mA
Operating Frequency:13.56MHz
Read Range:0～45mm
Interface:UART TTL
Baud Rate:115200
Data transfer rate:Maximum10Mbit/s
Physical Characteristics:Size:50mm×50mm
Ambient operating temperature:Celsius-20—80
Storage Temperature:Celsius-40—85
Humidity:Relative Humidity 5% —95%
Agreement:Compliance with ISO14443A standard,support Mifare1 S50.S70
Precautions
Try not to be placed between the card reader and the reader when any metal objects. So as not to affect the results.

Feature :
1.Gilt PCB and Small dimension and easy to embed into your project 2.Support I2C.SPI and HSU (High Speed UART), Change between those modes 3.Support RFID reading and writing SupportP2P communication with peers Support NFC with Android phone 4.Typical Operating Distance have been updated to 5cm~7cm reading distance 5.Work in NFC Mode or RFID reader/writer Mode 6.RFID reader/writer supports: 1) 1k, 4k, Ultralight, and DesFire cards 2) ISO/IEC 14443-4 cards such as CD97BX, CD light, Desfire, P5CN072 (SMX) 3) Innovision Jewel cards such as IRT5001 card 4) FeliCa cards such as RCS_860 and RCS_854 7.Plug and play, for compatible 8.Built in PCB Antenna, with 4cm~6cm communication distance 9.On-board level shifter, Standard 5V TTL for I2C and UART, 3.3V TTL SPI 10.Work as RFID reader/writer 11.Work as 1443-A card or a virtual card 12.Exchange data with other NFC devices such as smartphone Package Included: 1 x1PCS*PN532 NFC RFID Module 1x 2.54mm spacing 4pin Cable 1xMifare One S50 White Card 1xMifare One S50 Key Card 1x12P bended male pins

Description:
ITEAD PN532 NFC module, as its name implies, is based on PN532 chip and used for 13.56MHz near field communication. The module is equipped with onboard antenna, thus no external antenna coil is needed. It is compatible with SPI, IIC and UART interface for communication. With NFC library support for Arduino and Raspberry Pi offered by us, it is quite convenient for development of products with NFC functions.
Features:
1. Longest effective communication distance of 3 cm 2. Supports switching of SPI, IIC and UART interface. 3. Can be used for 13.56M non-contact communication 4. Compatible with ISO14443 Type A and Type B standards
Specifications:
IC: PN532 Operating Voltage:3.3V Power Supply Voltage:3.3~5.5V Max Supply Current:150mA Working Current(Standby Mode):100mA Working Current(Write Mode):120mA Working Current(Read Mode):120mA Indicator:PWR Interface:SPI Interface, Std Raspberry Pi 20pins Interface

Product Description
1: Working voltage: 6-30V support micro USB 5.0V power supply
2: Trigger signal source: high level trigger (3.0V~24V), low level trigger (0.0V~0.2V), switch control (passive switch).
3: Output capacity: can control equipment within DC 30v 5A or AC 220v5A
4: Quiescent current: 15mA Working current: 50mA
5: Service life: more than 100,000 times; working temperature: -40—85°C; size: 8.0*3.8*1.9cm
6: With optocoupler isolation, enhanced anti-interference ability, industrial-grade circuit board, set parameters will be remembered forever after power failure.

1. With LCD display, the current mode and parameters are clear at a glance, very clear, simple and practical;
2. Support high and low level trigger, switch value control, suitable for most occasions;
3. Wide voltage power supply (6~30V) supports micro USB 5.0V power supply, which is very convenient to use;
4. Support UART data upload and parameter setting;
5. There is a key emergency stop function (STOP key), with reverse connection protection, reverse connection does not burn;
6. Added sleep mode. After enabling, without any operation within 5 minutes, the LCD backlight will be automatically turned off; any keystroke will wake up;
7. Different OP, CL, LOP parameters can be set, these parameters are independent of each other and saved separately;
8. All setting parameters are automatically saved after power-off.
1: Working voltage: 6-30V support micro USB 5.0V power supply
2: Trigger signal source: high level trigger (3.0V~24V), low level trigger (0.0V~0.2V), switch control (passive switch).
3: Output capacity: can control equipment within DC 30v 5A or AC 220v5A
4: Quiescent current: 15mA Working current: 50mA
5: Service life: more than 100,000 times; working temperature: -40—85°C; size: 8.0*3.8*1.9cm
6: With optocoupler isolation, enhanced anti-interference ability, industrial-grade circuit board, set parameters will be remembered forever after power failure. The timing range is 0.01 second (minimum) to 9999 minutes (maximum) continuously adjustable. How to choose the timing range: In the OP/CL parameter modification interface, short press the STOP button to select the timing range; XXXX has no decimal point, and the timing range is 1 second to 9999 seconds XXX .X The decimal point is in the tens place, the timing range is 0.1 second to 999.9 seconds XX.XX The decimal point is in the hundreds place, the timing range is 0.01 second to 99.99 seconds XXXX decimal point is all on, and the timing range is 1 minute to 9999 minutes. Then move the decimal point to the tens place, and the LCD will display 003.2. Parameter description: OP on time, CL off time, LOP cycle times (1—9999 times, "----" represents infinite cycles)
(1). Parameter setting
a) Long press the SET key to enter the setting interface;
b) First set the working mode, the working mode flashes to remind, shortly press the UP/DOWN key to set the working mode;
c) Short press the SET key to select the working mode and enter the system parameter setting;
d) In the system parameter setting interface, short press the SET key to switch the system parameters to be modified, short press/long press the UP/DOWN key to modify; (Note: short press in P-1~P-3, P-7 mode SET is invalid); e) In the OP/CL parameter modification interface, short press STOP to switch the timing unit (1s/0.1s/0.01s/1min); f) After setting all parameters, press and hold the SET key to save the parameter settings and exit the setting interface;
(3) Additional functions
a) Automatic sleep function: In the running interface, long press the STOP button to start or close the automatic sleep function (L-P selects on to start the sleep function, and off to close the sleep function);
b) Relay function selection: In the running interface, short press the STOP button to start or close the relay function,'on' meets the conduction condition and the relay is normally turned on,'OFF' meets the conduction condition and the relay is not turned on;'OFF' In the state, the system flashes'OUT';
c) Parameter view: In the running interface, short press the SET button to display the current parameter settings of the system, which does not affect the normal operation of the system;
d) Display content switching: In P-5 P-6 mode, short press the DOWN key to switch the display content (operating time/cycle times);
The system supports UART data upload and parameter setting function (TTL level); UART: 9600, 8, 1

Description
1,Integrates common B-type (print line), Mini, Micro triple interface, no longer have to worry about the wire;
2,You can easily select 5V / 3V level interface via the toggle switch panel;
3,All pins are drawn FT232, FT232 easy to do a program evaluation;
4,Perfectly support XP, WIN7, WIN8,32-bit / 64-bit operating systems.

Description:
Using imported chips TCS3200
TCS230 TCS3200 is upgraded version
Power supply 3-5v
Anti-light interference
A white LED, can control light, off.
Can detect non-luminous object color
Best detection distance 1cm

Package Included:
1 X TCS3200 color sensor

Description
support 4 channel 3A relay control,xbee wireless module and so on.Independent external power supply and opto-isolator.Effective to avoid being accused of electromagnetic interference of the device.
Specification:
Power apply:7V-12V(>200mA)
Relay Max Switching Voltage : 240VAC/60VDC
Relay Max switching current : 5A
Contact load capacity: 1A 250VAC, 3A 120VA/24VDC
Wireless output interface: xbee/ Bluetooth Bee/ Wireless Programming Module
Size: 8x 5.5x 2.8cm

Product Description
Stereo Bluetooth Digital Amplifier Board
Amplifier chip: YDA138
Operating voltage: 8.5~14VDC (power input with polarity protection)
Recommended power supply: 12V DC current 2A
Output power: 2X10W (8 ohms), 15W 15W (4 ohms)
Output impedance: 4~10 Ohm
Specifications Model: SW-HF187
Size:40x60mm
weight:14g



Packaging:

1pcs × YDA138 Bluetooth Amplifier Board Module

Description
1.Industry-leading noise performance through proprietary amplifier and filter design techniques
2.Integrated shield greatly reduces capacitive coupling from current conductor to die due to high dV/dt signals,and prevents offset drift in high-side,high voltage applications
3.Total output error improvement through gain and offset trim over temperature
4.Small package size, with easy mounting capability
5.Monolithic Hall IC for high reliability
6.Ultra-low power loss: 100 internal conductor resistance
7.Galvanic isolation allows use in economical, high-side current sensing in high voltage systems
8.3.0 to 5.5 V, single supply operation
9.120 KHz typical bandwidth
10.3 us output rise time in response to step input current
11.Output voltage proportional to AC or DC currents
12.Factory-trimmed for accuracy
13.Extremely stable output offset voltage
14.Nearly zero magnetic hysteresis
15.Board Size:38.22*18.03mm
16.Typical application:
Application 1. The ACS758 outputs an analog signal,VOUT,that varies linearly with the uni- or bi-directional AC or DC primary sampled current, IP, within the range specified. CF is for optimal noise management, with values that depend on the application.

Name: 4U-5V/5A step-down module
Input: 8V-36V
Output: 5V/5A
Efficiency: 93% (MAX)
Working temperature: -40℃- 85℃
Protection: reverse connection protection
Load capacity: 5A
Weight: 78g
Size: L63mm*W50mm*H30mm
Wiring mode: DC5.5/2.1, terminal blocks free of welding
Scope of application: USB5V powered devices such as mobile power supplies, mobile phones, tablets, recorders, etc.
Accessories: 4USB module, input DC cable (length 30cm, red positive and black negative)
Special note: If you are using a battery or battery, the fully charged voltage must not be higher than the maximum input voltage of the module.
The maximum current of a single USB of this module is 3A. The charging current of mobile phones is generally 1-2A (except for fast charging). If your device itself has a charging current of only 1A, no matter how high you charge it, it will only be 1A. It is not that the higher the current, the faster the charging, which

Description
CJMCU-8232 sensor module
Single-lead heart rate monitoring front end
AD8232 is an integrated front end, which is suitable for signalling cardiac bioelectrical signals.
No. conditioning for heart rate monitoring.
An integrated signal conditioning module for ECG and other bioelectric measurement applications. The device is designed to extract, amplify and filter weak bioelectric signals in the presence of noise caused by movement or remote electrode placement. This design enables an ultra-low power analog-to-digital converter (ADC) or embedded microcontroller to easily collect the output signal.
AD8232 uses a two-pole high-pass filter to eliminate motion artifacts and electrode half-cell potential. The filter is tightly coupled with the instrumentation amplifier structure, which can realize single-stage high-gain and high-pass filtering, thereby saving space and cost.
AD8232 uses an unused constrained operational amplifier to create a three-pole low-pass filter, eliminating additional noise. The user can select the cutoff frequency of all filters to meet the needs of different types of applications.
In order to improve the common-mode rejection performance of the system line frequency and other undesirable interferences, the AD8232 has a built-in amplifier for driven lead applications such as right-side drive (RLD).
The AD8232 includes a fast recovery function, which can reduce the long set-up tail of the high-pass filter. If there is a sudden change in the amplifier rail voltage (such as a lead-off situation), the AD8232 will automatically adjust to a higher filter cut-off state. This function allows the AD8232 to achieve rapid recovery, so that a valid measurement value can be obtained as soon as possible after the lead is connected to the electrode of the measurement object.
The rated temperature range for guaranteed performance is 0 ℃ to 70 ℃, and the operating temperature range is -40 ℃ to 85 ℃.
application
Fitness and exercise heart rate monitoring
Portable ECG
Remote health monitoring
Gaming peripherals
Bioelectric signal acquisition
Pin number Pin name Description
1 HPDRIVE high-pass driver output. HPDRIVE should be connected to the capacitor in the first high-pass filter.
AD8232 drives this pin to keep HPSENSE at the same level as the reference voltage.
2 IN The positive input terminal of the instrumentation amplifier. IN is usually connected to the left arm (LA) electrode.
3 −IN The negative input terminal of the instrumentation amplifier. −IN is usually connected to the right arm (RA) electrode.
4 RLDFB Right leg drive feedback input terminal. RLDFB is the feedback pin of the right leg drive circuit.
5 RLD Right leg drive output terminal. The drive electrode (usually the right leg) should be connected to the RLD pin.
6 SW Fast recovery switch pin. This pin should be connected to the output of the second high-pass filter.
7 OPAMP Operational amplifier non-inverting input terminal.
8 REFOUT Reference voltage buffer output terminal. The instrumentation amplifier output is referenced to this potential.
REFOUT should be used as a virtual ground at any point in the circuit where a reference signal is needed.
9 OPAMP− The inverting input terminal of the operational amplifier.
10 OUT Operational amplifier output terminal. This output provides a fully conditioned heart rate signal.
OUT can be connected to the input terminal of the ADC.
11 LOD− The lead falls off the output of the comparator. In the DC lead-off detection mode, when the −IN electrode is disconnected,
LOD− is in a high level state, otherwise it is in a low level state. In the AC lead-off detection mode, LOD− is always in a low state.
The lead falls off the output of the comparator. In the DC lead-off detection mode, when the IN electrode is disconnected, LOD is in a high level state,
Otherwise, it is in a low level state. In the AC lead-off detection mode, when the −IN or IN electrode is disconnected, the LOD is at a high level.
When these two electrodes are connected, they are in a low level state.
12 LOD
13 SDN Shutdown control input terminal. Drive SDN to a low level to enter a low-power shutdown mode.
14 AC/DC lead off mode control input terminal. For the DC lead-off mode, the AC/DC pin should be driven to a low level.
For the AC lead-off mode, the AC/DC pin should be driven to a high level.
15 FR Fast recovery control input. Driving FR to a high level enables the fast recovery mode; otherwise, it should be driven to a low level.
16 GND Power ground.
17 VS Power supply pin.
18 REFIN Reference voltage buffer input terminal. REFIN (high impedance input pin) can be used to set the level of the reference voltage buffer.
19 IAOUT Instrumentation amplifier output pin.
20 HPSENSE The high-pass detection input terminal of the instrumentation amplifier.
HPSENSE should be connected to the R and C nodes that set the corner frequency of the DC blocking circuit.
EP Exposed Pad. The exposed pad should be connected to GND or left unconnected.

TA2024 digital amplifier board car computer HIFI car mini amplifier board digital amplifier board
This digital amplifier is a small plate, which specializes in digital signal processing technology
Design and mixed-signal integrated circuits and power. It is good, hi-efficiency.
Easy to carry, small body temperature. Widely used in multimedia computers, portable audio, home theater, car audio, etc.
feature
No radiator; 4-8 ohms for any speaker;
Compared to traditional Class AB amplifiers sound very high;
Sound equivalent to or exceeding power amplifier;
Single power supply design.
Signal output:
Single 12 volt power supply.
T class architecture.
0.04% THD N @ 9W, 4Ω.
0.18% IHF-1M @ 1W, 4Ω.
6W @ 8Ω, 0.1% THD N.
11W @ 4Ω, 0.1% THD N.
High Power:
10W @ 8Ω, 10% THD N.
15W @ 4Ω, 10% THD N.
high efficiency:
88% @ 10W, 8Ω.
81% @ 15W, 4Ω.
Dynamic range: 102 dB.
Mute and Sleep inputs.
Open and close the pop suppression.
Overcurrent protection. Over-temperature protection.
Size: 9.1 * 5.3 * 1.5cm / 3.58 "* 2.09" * 0.59 "(L * W * H)
Quantity: 1Pcc
Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
Package includes: 1Pc x TA2024 HIFI mini digital audio amplifier AMP board module Car PC 12V 2 x 15W New

Product Description
H-bridge motor driver
Drive a DC motor, a winding of a stepper motor or other loads
Wide 6.5-V to 45-V working voltage
565-mΩ typical RDS (open) (HS LS)
3.6-A peak current drive
Pulse width modulation control interface
Current regulation without sense resistor

Specification:
1. Red, Green, Blue (RGB), and White Light Sensing with IR Blocking Filter
2. Programmable Analog Gain and Integration Time
3. 3,800,000:1 Dynamic Range
4. Very High Sensitivity ? Ideally Suited for Operation Behind Dark Glass
5. Maskable Interrupt
6. Programmable Upper and Lower Thresholds with Persistence Filter
7. Power Management
8. Low Power ? 2.5-uA Sleep State
9. 65-uA Wait State with Programmable Wait State Time from 2.4 ms to > 7 Seconds
10. I2C Fast Mode Compatible Interface
11. Data Rates up to 400 kbit/s
12. Input Voltage Levels Compatible with VDD or 1.8 V Bus
13. Register Set and Pin Compatible with the TCS3x71 Series
14. Small 2 mm*2.4 mm Dual Flat No-Lead (FN)
Applications
1. RGB LED Backlight Control
2. Light Color Temperature Measurement
3. Ambient Light Sensing for Display Backlight Control
4. Fluid and Gas Analysis
5. Product Color Verification and Sorting

Product Description
23 ULTRA-SMALL QFN PACKAGE: The ADS1113, ADS1114, and ADS1115 are
2mm × 1,5mm × 0,4mm precision analog-to-digital converters (ADCs) with 16
WIDE SUPPLY RANGE: 2.0V to 5.5V bits of resolution offered in an ultra-small, leadless
LOW CURRENT CONSUMPTION: QFN-10 package or an MSOP-10 package The ADS1113 / 4/5 are designed with precision, power, and.
Continuous Mode: Only 150A ease of implementation in mind The ADS1113 / 4/5.
Single-Shot Mode:. Auto Shut-Down feature an onboard reference and oscillator Data are
PROGRAMMABLE DATA RATE: transferred via an I2C-compatible serial interface; four
8SPS to 860SPS I2C slave addresses can be selected. The
INTERNAL LOW-DRIFT ADS1113 / 4/5 operate from a single power supply
VOLTAGE REFERENCE ranging from 2.0V to 5.5V.
INTERNAL OSCILLATOR The ADS1113 / 4/5 can perform conversions at rates
INTERNAL PGA up to 860 samples per second (SPS). An onboard PGA is available on the ADS1114 and ADS1115 that
I2C INTERFACE: Pin-Selectable Addresses offers input ranges from the supply to as low as
FOUR SINGLE-ENDED OR TWO ± 256mV, allowing both large and small signals to be
DIFFERENTIAL INPUTS (ADS1115) measured with high resolution. The ADS1115 also
features an input multiplexer (MUX) that provides two PROGRAMMABLE COMPARATOR differential or four single-ended inputs.
(ADS1114 and ADS1115)
The ADS1113 / 4/5 operate either in continuous
APPLICATIONS conversion mode or a single-shot mode that
PORTABLE INSTRUMENTATION automatically powers down after a conversion and greatly reduces current consumption during idle
CONSUMER GOODS periods. The ADS1113 / 4/5 are specified from -40 ° C
BATTERY MONITORING to 125 ° C.

ADS1015

For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1015 provides 12-bit precision at 3300 samples/second over I2C. The chip can be configured as 4 single-ended input channels, or two differential channels. As a nice bonus, it even includes a programmable gain amplifier, up to x16, to help boost up smaller single/differential signals to the full range. We like this ADC because it can run from 2V to 5V power/logic, can measure a large range of signals and its super easy to use. It is a great general purpose 12 bit converter.
The chip's fairly small so it comes on a breakout board with ferrites to keep the AVDD and AGND quiet. Interfacing is done via I2C. The address can be changed to one of four options (see the datasheet table 5) so you can have up to 4 ADS1015's connected on a single 2-wire I2C bus for 16 single ended inputs.

Description
Ethernet Shield Nano UNO R3, work as ENC28J60 RJ45 Webserver

100% Brand new

With this Ethernet Shield, Nano board can be used to connect to internet
controller: Microchip's ENC28J60 ethernet / HR911105A
works as server or client
comes with efficient library and examples
direct plug puzzle board, NO soldering needed

Feature:
This is a great DC to DC step-up power supply module for electric equipment, digital products, etc.
Input and output are designed with screw terminals for convenient wire connection and disconnection.
There is a heat sink on board that would ensure a better heat dissipation.
Designed with USB and 2.5A large current output, can identify resistance and charge several phones at same time.
It can also be used as a power supply for laptops or voltage regulator for solar panels.
Specification:
Input Voltage: DC 3 -35V
Output Voltage: DC 5 -45V
Input Current: 5A(Peak)
Voltage Display Range: 5 -30V(if input voltage is lower than 4.5V, it will not display)
Voltage Display Error: ±0.1V
Size: 72*48*16mm / 2.83*1.89*0.63"
Note:
1This is a boost module so output voltage should be higher than input voltage.
Peak output current is less than 5A.
This kit requires professional knowledge and ability, please make sure you know how to use it.
Instruction:
1. Connect the module to power supply (4.5-40V), the input indicator light is on, and module is working normally.
2. Adjust the blue potentiometer knob (generally turn clockwise to step up and turn counterclockwise to step down) and check the output voltage with a multimeter until it meets requirement.
3.If the output voltage of the module can not be adjusted, which means it is always equal to the input voltage, please turn the potentiometer counter-clockwise for several circles then the voltage can be adjusted normally.
Package Include:
1 x XH-M411 DC-DC 3 -35V to 5 -45V 5A Step Up Converter Boost Power Supply Board

Product Description
Name : ADXL335 module
( Triaxial accelerometer analog output )
Use chip : ADXL335
Power supply : 3-5v
X, Y, Z output
Name : ADXL335 module
( Triaxial accelerometer analog output )
Use chip : ADXL335
Power supply : 3-5v
X, Y, Z output
Direct angle output codes
With ad 51 SCM c language
Schematics

Product Description
Name : ADXL335 module
( Triaxial accelerometer analog output )
Use chip : ADXL335
Power supply : 3-5v
X, Y, Z output
Name : ADXL335 module
( Triaxial accelerometer analog output )
Use chip : ADXL335
Power supply : 3-5v
X, Y, Z output
Direct angle output codes
With ad 51 SCM c language
Schematics

Specification
Material: electrical components
Converter Type: DC-DC
Input voltage: 5 -23V (better voltage 20V)
Output voltage: 0 -16.5V (continuously adjustable)
Peak current: 3A
Motherboard Size: approx. 50 x 30 x 12 mm (L x W x H)
Display Module: STN LCD
LCD Size: approx. 37.5 x 17.0 mm (L x W)
LCD Accuracy: 1%
Conversion efficiency: 95%
Load regulation (I): ≤ 0.8%
Voltage regulation (U): ≤ 0.8%

Package Included:
1 x Step Down Power Supply Module

Description:
Intelligent non-contact liquid level sensor adopts advanced signal processing technology and high-speed signal processing chip, and it won't be influenced by container wall thickness when detecting the liquid level in a airtight container. Liquid level sensor is installed under container (high level and low level). No need to bore a non-metallic container, easy to install. It can detect liquid level of various toxic substances, acid, alkali and all kinds liquid in high pressure airtight container. It can be widely used and has no special requirement for liquid medium and material of container.
Features:
Non-contact liquid level sensor is applicable to non-metallic containers without direct contact with the liquid, not affected by scale or other impurities.
Intelligent liquid level benchmark adjustment and level memory function, liquid level display mode, can achieve multi-point series connection.
Electronic circuit structure rather than machinery ensures stable performance, durability and a long service life.
High stability, high sensitivity, strong anit-interference ability make sure it won't be affected by electromagnet, special designed to deal with power frequency interference and common mode interference.
Compatible with most 5 ~ 24V power adapter.
Strong compatibility through a variety of non-metallic material containers, such as plastic, glass, ceramics etc, with a 13mm or more induction distance.
Testing is accurate and stable and boiling water level can be detected. Liquid, powder, particles can all be detected.

Description
The MCP4725 is a 12-channel buffered voltage output DAC with non-volatile memory (EEPROM) of. The user can configure the register bit (2) and DAC input data (12) stored in nonvolatile EEPROM (14-bit) memory. By setting the configuration register bits DAC can be configured as a normal mode or power-saving shutdown mode. The device uses a two-wire I2C-compatible serial interface, and a voltage range of 2.7V to 5.5V single supply.


Description: You've always wanted to output analog voltages from a microcontroller, the MCP4725 is the DAC that will let you do it The CJMCU-MCP4725 is an I2C controlled Digital-to-Analog converter (DAC) A DAC allows you to!. send analog signal, such as a sine wave, from a digital source, such as the I2C interface on the microcontroller. Digital to analog converters are great for sound generation, musical instruments, and many other creative projects!

This version of the CJMCU-MCP4725 Breakout fixes a few issues with the board including the IC footprint, the I2C pinout, changes the overall board dimensions to better fit your projects, and a few more minor tweaks. This board breaks out each pin you will need to access and use the MCP4725 including GND and Signal OUT pins for connecting to an oscilloscope or any other device you need to hook up to the board. Also on board are SCL, SDA, VCC, and another GND for your basic I2C pinout. Additionally, if you are looking to have more than one MCP4725 on a bus, the pull-up resistors on this board can be disabled just check the Hookup Guide in the Documents section below for instructions and tips on doing this.

Features:

12-bit resolution
I2C Interface (Standard, Fast, and High-Speed supported)
Small package
2.7V to 5.5V supply
Internal EEPROM to store settings

Function Features:
1.Noncontact detection,moving object detecting
2.Transmitting frequency:24GHZ,can be widely applied in business,industries,word controlling etc
3.Provide various frequency range standards:-UK,-F.advanced low consumption PHEMT oscillator
4.Independent transmitting and receiving route, can get the biggest gain,single channel operation
5.High sensibility,high flexibility,low cost,operating distance:15m
6.Not influenced by temperature,humidity,noise,air flow,dust,ray etc,adaptive to terrible environment
7.Strong radio frequency interference resistance,stable performance,swift response,high sensibility
8.Out put power is 5mW,does no harm to human bodies
9.Long distance detection range:15m
10.Small volume,easy to install
11.Radar wave can penetrate through non metallic object,such as board,glass,plastics,fabric textile etc,unless there are concrete wall or metal board to obstruct
12.Human beings or objects facing the sensor to move wil receive the best detection result
Notice:
1.Don't operate during the power on in case of maloperation,wrong circuit or electric shock
2.Avoid installing the product in exposed place to prevent damage or affecting using longevity
3.Install the product far away from magnetic field in case of maloperation
4.Install the product far waay from moving conductors in case of maloperation
Parameter:
1.Transmitting Frequrency: min:24GHz typ:24.125GHz max:24.25GHz
2.Output Power:16dbm (tpy)
3.Operating Temperature:-20--60℃
4.Operating Current: tpy:30MA, max:40MA
5.Operating Voltage: tpy:5.5V
6.Pulse Width: tpy:10US
7.IF Output:-300--300MV
8.Appearance Size:25*25*7mm

Description
Mini PCM2704 USB sound card/DAC decoder board, size: 12*49MM (including terminal)
USB power supply, analog output. Plug directly into the USB port of the computer, eliminating the need for wiring
The main chip adopts BB's HIFI-level PCM2704 USB decoding chip. Its performance is better than the commonly used low-end chip CM102S series in the market. The power supply is USB power supply. The output end can be directly connected to earphones or as a pre-stage. The digital output can be more The advanced DAC decoder provides SPDIF digital signals to get better sound quality. Because it is an external sound card, it avoids serious electromagnetic interference in the chassis, and the signal-to-noise ratio and sound quality are improved.
PCM2704 is a single-chip digital-to-analog conversion chip. It has two digital-to-analog conversion output channels and an integrated USB interface controller. The interface complies with the USB1.1 standard. PCM2704 can receive 16-bit stereo or mono audio data with 48KHz, 44KHz and 32KHz sampling rates. The chip has integrated software volume and mute functions, which can simultaneously adjust the computer's volume and mute.
PCM2704 parameters:
Power supply voltage: 5 V (USB power supply),
Distortion: THD N: 0.006% (RL> 10 kΩ)
Distortion: THD N: 0.025% (RL = 32 Ω)
Signal to noise ratio: 98 dB
Dynamic range: 98 dB
Headphone output power: 12 mW (RL = 32 Ω)

USB supports sampling rate: 16BIT/32-48KHZ