Kereskedelmi, irodai és ipari

MP135/MP503 Air Quality Gas Sensor
Product description
The MP135/MP503 air quality gas sensor uses a multilayer thick film manufacturing process. A heater and a metal oxide semiconductor gas sensor are fabricated on both sides of a miniature Al2O3 ceramic substrate, and they are encapsulated in a metal shell. When the detected gas exists in the ambient air, the conductivity of the sensor changes. The higher the concentration of the gas, the higher the conductivity of the sensor. A simple circuit can convert this change in conductivity into an output signal corresponding to the gas concentration.
Sensor characteristics
This product has a high sensitivity to alcohol, smoke, isobutane, and formaldehyde; it has the advantages of fast response recovery, low power consumption, a simple detection circuit, good stability, and long life.
main application
Used in the home environment and office harmful gas detection, automatic exhaust device, air cleaner, etc.

Module description
1. Provide 5V and 3.3V voltage output
2. USB to UART (serial port data, ISP method program download, STC/STM series single-chip microcomputer)
Serial data communication (50bps~2Mbps, can be configured for use at unconventional baud rate)
ISP mode program download (STC/STM series single-chip microcomputer)
3. USB to IIC/I2C (flash chip, IIC device operation, flashing)
Can only be a Master. 20K, 100K, 400K, 750K multiple adjustable communication rates
4. With LED light status display
5. Function and voltage switching terminal
Shipping list
CH341T two-in-one multi-function module*1
Double female Dupont cable *4
Anti-static bag *1
Short-circuit terminal *2

Features
USB driverless camera, supports all Raspberry Pi versions
Lens focal length: F6.0mm
Focusing range: 20mm to extreme distance
Video resolution: 640*480
The length is about 3.8cm, the width is about 1.5cm, the height is about 3cm, the line can be lengthened or shortened, the length is 65cm

Product introduction:
1. TMC2208 is an ultra-quiet two-phase stepper motor driver chip, continuous drive current 1.4A, peak current 2A, voltage range 4.75V-36V, 256 subdivision; with patented technology spreadCycle" (high dynamic chopper) stealthChop2" (ultra-silent technology), microPlyert" (subdivision control).
2. The flexible microplyer interpolation unit can provide up to 256 subdivisions, even in a system with limited pulse frequency, it can still achieve perfect sinusoidal control; because the stealthChop2 ultra-quiet technology is widely used in 3D printing, these components are The design is also compatible with the existing 3D printer electronics, eliminating the costly cost of redesign. With standard step/dir interface, it is simple and convenient to use.
Features:
1. The subdivision is up to 256;
2. Will not lose step when driven by high load;
3. The logic interface level is: 3-5V;
4. Input voltage range: 4.75-36V DC;
5. The subdivision mode can be 2, 4, 8, 16 subdivision;
6. StealthChop2 can drive the motor to work in extremely silent conditions, and can control the sound of the motor below 10dB, and the noise is much lower than the traditional current control method;
7. In the traditional stepping motor drive scheme, there will be an excessive current when the current crosses the zero point, or called a current dead zone, when the motor coil has no current. This is a major factor that causes the motor to vibrate. SpreadCycle guarantees that the stepper motor has a smooth transition without dead-zone current when the stepper motor is over-respected. Several stepper motor driver chips using TMC2208 have almost no jitter;
8. SpreadCycle PWM new wave mode automatically configures a hysteresis attenuation function between slow and fast attenuators. The average current reflects the configured normal current. There will be no transition period when the sine wave crosses the zero point. This reduces the fluctuation of current and torque, and makes the current waveform closer to the sine wave. Compared with the traditional constant chopping type, SpreadCycle PWM chopping The motor under wave mode control runs more smoothly and smoothly.

TCS34725 color recognition sensor module
●TCS34725 color sensor chip provides red, green, blue (RGB) and bright light sensing digital return values;
●The color-sensitive photodiode integrated chip cut and the localized infrared shading filter minimize the infrared spectrum components of the incident light and make the color management more accurate;
●High sensitivity, wide dynamic range and infrared shading filter make TCS34725 an ideal color-sensitive element solution under changing light conditions and passing through attenuating materials;
●TCS34725 color sensor has a wide range of applications, including RGB LED backlight control, solid-state lighting, health products, industrial process control and medical diagnostic equipment, etc.;
Product parameter
1. Working voltage: 3.3～5V
2. Detection distance: 3～10mm
3. Communication method: IIC
Product pin definition and description
1. VIN power supply positive
2. GND negative pole of power supply
3.3V3 3.3V output
4. SCL clock signal
5. SDA data signal
6. INT interrupt output, active low
7. LED control the LED light near the sensor, the LED light will be on when the high level signal or floating, and the low level signal LED light will be off

Drive-free USB sound card computer external sound card notebook sound card original CM108 USB sound card chip
USB external sound card
Bare board method Visible materials Small and easy to carry
Chip model: CM108 external crystal oscillator
Input and output: 3.5mm green headphone jack, 3.5mm microphone jack
USB interface, plug and play, replace the traditional sound card (the computer sound card is broken, it can be replaced directly)
Output analog audio signal can directly drive headphones or output to active speakers
Drivers do not need to be installed in WIN2000, WINXP, WIN3003 systems

Delivery list: digital tube display (the on-board microcontroller has been burned and the program is directly applied)
About power-off storage: there is a power-off memory, only the verification data is saved, and the weight is not saved
Notice:
①: This board is an integrated module of the pressure sensor test board, and there is no relevant information such as drawings and programs. Please do not ask us for it. This is just a pressure sensor test board or called a pressure sensor display.
②: The module is designed for wide voltage, and the power supply range is DC 3~5.5V. There are 2 power supply methods. USB cable for power supply or wire it yourself (leave the interface).
Please note: The digital tube display module does not come with a power cord. If you need USB power supply, please purchase it yourself.
USB cable specification: USB to DC3.5mm power cable
③: The module is connected with the pressure sensor first, and then powered on for use. After connecting to the pressure sensor, a calibration calibration is required. The board has functions such as peeling, calibration, etc. The parameters are saved after power off, and there is no need to calibrate again for future use.
④: Module size: 50*33*10mm, displayed by 4-digit digital tube. 9999g can be displayed. It can be connected to a common 5KG or 10KG pressure sensor. Generally, the accuracy of the sensor with a 5Kg range fluctuates around 1g. If the fluctuation is large, it may be caused by the unstable power supply. Please try changing the power supply. (Calibration is required after connection)

FT232 flashing line USB to TTL download line FT232 to TTL download line flashing line with CTS RTS
Chip: FTDI
Length specification: 1 meter, outer diameter OD4.0
Line sequence definition red 5V, black GND, green TXD, white RXD, yellow RTS, blue CTS (reserve 3.3V pad)
Support system: WindowsXP, Vista, Windows 7/8

Features:
1Two-phase stepper motor single-phase current 1.2A (peak value is 2.0A) The motor work can be adjusted. 2 Supports Step/DIR interface and SPI interface two control methods
3. Motor input voltage range: 4.75-36V
4. The input voltage of the logic interface is: 3-5V
5 is subdivided into 256
6·Combining efficiency and motor torque for noise-free operation
7 High-precision sensorless motor load detection
8. Reduce energy consumption by 75%
9, high load drive without losing a step
Shipping list:
TMC2208 drive module*1
Heat sink*1
Potentiometer adjustment screwdriver*1
TMC2208 single-axis stepper motor driver chip, power tube built-in drive current 1.4A peak current 2A, voltage range 4.75V-36V, 256 subdivision; with patented technology spreadCycle™ high chopping frequency, dcStep™ locked rotor detection technology, coolStep™ current Dynamic adjustment technology, which can save 70% energy, StealthChop's silent and flexible microlayer interpolation unit, the component can provide up to 256 micro steps/step resolution, even in a system with limited pulse rate, it can still achieve sinusoidal control; due to stealth chip fine tone Technology is widely used in 3D printing, so the design of these components is also compatible with existing 3D printer electronics, eliminating the need for expensive redesign. Both components have pulse/direction inputs and can be operated completely autonomously. Configuration is achieved through digital inputs.
It can replace the original TMC2100 with lower heat generation, which is especially suitable for the 3D printing market!!!

Overview
USB To RS485 converter allows PC users to connect their RS-485 devices
to systems that use USB interface. By attaching the converter to a PC, it will no longer be
necessary to open the chassis or turn off the PC to install the hub. With the converter,
the user instantly gets one extra high-speed RS-485 ports. In addition, since
the power is derived from the USB port, there are not any cumbersome power adapters.
This makes the converter especially suitable for PLCs, printers, POS system and industrial
control devices.
Product parameters:
1. Power supply: USB 5V
2. Transmission distance: 1200 meters (under 9600bps conditions)
3. Chip solution: CH340
4. Communication protocol: pure hardware equipment, not restricted by protocol
5. Baud rate: 921600bps, supporting mutual transmission supports higher baud rate
6. Protection: TVS transient suppression protection, electrostatic ESD protection, surge protection, AB signal line short-circuit and short-circuit protection with the power supply (short-circuit does not burn)
7. Temperature range: -40℃-80℃
8. Provide external 5V power supply with fuse for current limiting
9. Support system: support hot swap, support win98/CE/2000/2003/2008/XP/WIN7/WIN8/WIN10/VISTA/LINUX/MAC OS X system, USB interface can be hot swapped
10. Automatically identify and control the data transmission direction, without any handshake signals (such as RTS, DTR, etc.) without jumper settings to achieve mode conversion, to ensure compliance with the existing communication software and interface hardware.
11. Weight: 16g
12. Size: length, width and height 70*27*13mmWiring instructions
A >> 485 signal terminal A
B >> 485 signal terminal B
GND >> 485 signal ground (optional)
GND >> Ground for external power supply (power supply for other devices or leave it empty)
VCC >> External power supply 5V (can supply power to other devices or leave it empty)

Description:
The HDC1080 is a digital humidity sensor with an integrated temperature sensor that provides thermal measurement accuracy at ultra-low power consumption.
The HDC1080 supports a wide range of operating power supplies, voltage ranges, and offers a low cost and low power advantage for a variety of common applications compared to competing solutions. The humidity and temperature sensors are factory calibrated.
Features:
Sexual humidity accuracy is ±2%
Temperature accuracy is ±0.2 degree
High humidity stability
14-bit measurement resolution
Sleep mode current bit 100nA
Average supply current
-1sps, 11 relative humidity (RH) measurement is 700nA
-1sps, 11-bit RJ with temperature measurement of 13UA
Voltage: 2.7V-5.5V
I2C interface
Application:
Heating, Ventilation and Air Conditioning Control (HVAC)
Temperature control only and room temperature monitor
Large household appliances
printer
Handheld meter
Medical equipment
Wireless sensor (TIDA: 000374, 00484, 00524)

This downloader uses CP2104 USB to serial port chip, and adds ESP8266 automatic download circuit, which is very convenient for users to download programs, upgrade firmware, serial port debugging, etc. to Ai-Thinker’s ESP-01/01S. It supports Arduino IDE, Ai-Thinker ESP8266Flasher and Espressif. Download software software such as FLASH_DOWNLOAD_TOOLS can be downloaded with one button, no wiring is required, and no buttons need to be pressed. The WiFi module will automatically enter the download mode.

Reminder: Most of the modules in this store only provide descriptions or materials, no technical consultation support, please be careful for beginners.
Support all 8-bit AVR microcontrollers
Note: The colors are randomly distributed, and the shell printing is random
Reminder: The driver-free version cannot be connected to some public version software, only Zhifeng software 1.681.72 can be used. Please note!
Use USBASP to burn AT89S51AT89S52, please use the DC jack to power the small system separately, otherwise it will not be able to burn
USBASP download line items include:
1 USB-ISP (5V version)
IDC10 core cable 1 (about 65CM long)
Features of this downloader
1. There is no need to install the driver. After plugging into the computer's USB port, the computer will automatically recognize the engineering input device, and then automatically drive the downloader. The lower right corner of the computer prompts that the device is available, and the red indicator light is on. When the program is burned, the green indicator light 2 , Perfect support for WN2K, WINXP, VISTA, WN7 and other operating systems.
3. The PC software of progisp1.68 and above must be used
3.Using USB port for power supply, 500mA recoverable fuse, short circuit and overcurrent protection, the target board can also be powered by USB at the same time.
3. The completion of the download does not affect the operation of the target board.
4. It supports the burning of SS1 and AVR chips, which is faster and more stable than parallel ISP: it is the best choice for notebooks and computers without parallel ports. (The 3.3V version cannot support the burning of Ss1, Ss1 series 3.3V cannot be downloaded).
1s, using the latest version of ultra-stable firmware, no hardware jumper selection when downloading at low speed, download speed is faster and more stable.
16. Use standard IDC10 interface

TPA3118 PBTL mono digital power amplifier board 1X60W
Product description:
Power amplifier chip: TPA3118
Amplifier power: 1*60W (one channel, two stereos are required)
Power supply voltage: 8~24VDC
Speaker impedance: 4-8Ω
Size: 46*35*1.6mm (length, width and thickness)
Total height of the board: 12mm

When the future shines brightly, this ultra-high-range photometric sensor will help you. The TSL2591 light sensor is an advanced digital light sensor ideal for use in a variety of lighting situations. Compared to low-cost CdS cells, the sensor is more accurate, performs accurate lux calculations, and can be configured for different gain/timing ranges to detect light ranges from 188 uLux to 88,000 Lux in real time.
The best part about this sensor is that it contains IR and full spectrum diodes! This means you can measure infrared, full spectrum or human visible light alone. Most sensors can only detect one of these, which is not an accurate representation of what the human eye sees (because we cannot perceive IR light detected by most photodiodes) This sensor is much like the TSL2561, but with a wider range (and a different interface code) . This sensor has a huge dynamic range of 600,000,000:1! Unlike the TSL2561, you cannot change the I2C address, so keep that in mind.
The built-in ADC means you can use it with any microcontroller, even if it doesn't have an analog input. The current consumption is extremely low, making it ideal for low-power data logging systems. About 0.4mA when actively sensing, less than 5uA in power-down mode.
Approximates Human eye Response
Extremely wide dynamic range:1 to 600,000,000 Counts
Lux Range: 188 uLux sensitivity, up to 88,000 Lux input measurements.
Temperature range: -30 to 80 *C
Voltage range: 3.3-5V into onboard regulator
Interface: I2C           
This board/chip uses I2C 7-bit address 0x29 (fixed) 

Module characteristic
1.Single-chip serial port control
2.Come with 4M memory,USB Sound can be copy with USB
3.Inner 3W amplified
4.Full set of development materials, providing technical support
It widely used:
Game basketball machine sound effect voice broadcasting, treadmill voice navigation, massage chair voice operation guidelines, equipment fault prompts, equipment operation guidance voice, vehicle safety voice warning, public place voice prompts, business hall warm voice prompts, etc.

29.4V Li-ion BMS 15AEQ Equalizer
Note: The lithium battery protection board cannot be used for lithium iron phosphate batteries, hernia lights, hand drill battery packs, electric fish machine battery packs, electric bicycle battery packs, children's car batteries, power motors above 550, and 1W fisheye LEDs. Lamps, please pay attention to customers who purchase the above combination! .
The attributes of the lithium battery protection board:
Model: HX-7S-TY-T20
Overcharge voltage range: 4.25V±0.05V
Over-discharge voltage range: 2.5V±0.05V
Charging voltage: 29.4V
Maximum operating current: 15A
Upper limit instantaneous current: 20A
Quiescent current: less than 30uA
Size: 60*40*3.6mm
Short circuit protection: can protect, delay automatic recovery

product description
In various bridge circuits, in order to adjust the bridge balance, the potentiometer must be adjusted many times to make the bridge balance. During use, when these potentiometers are subjected to vibration, shock, temperature, humidity, etc. The position and parameters of the potentiometer will change under the influence of environmental factors, which will cause the system index to change. To make the system reach its original state, it must be adjusted. This brings a lot of inconveniences to using. For this reason, in the bridge arm circuit of the bridge, The use of array potentiometers and digital technology can not only overcome the above shortcomings but also greatly improve the accuracy of the system.
X9C104 is a 100-step digital potentiometer, specifically X9C102/103/104/503 series, the resistance range is 40R~100K, X9C104 contains 99 resistor arrays, which are slid between each unit and on both ends The tap point accessed by the unit and the position of the sliding unit are controlled by the three input terminals of CS, U/D, and NC. Once the position is selected, it can be stored in non-volatile memory and can be recalled after the next power-on.
Performance parameter
Working voltage (V): 5
Total resistance (KΩ): 100
Terminal voltage (V): -5~5
Number of taps: 100
Interface mode: CS, U/D, INC
Resistance increase method: linear
Working current (mA): 3
Package/Temperature (℃): 8SOIC/-40~85
Description: The tap position is automatically saved when power off
Function brief
The changes of the digital potentiometers are stepwise or incremental, and the resistance changes into linear changes.
For example X9C104, resistance range
40R~100K, divided into 100 steps, the increment of each tap point is 1010R
With temperature compensation function: resistance error between terminals: ±20% ;
The sliding end position data can be stored for a long time, the time is 100 years;
The resistance resolution is higher: 1% .

Main features of HX711 serial port module:
●AB dual-channel design, each channel has 2 working modes for customers to choose to meet the needs of different users. (For details, see the module manual, there is a link above)
●Default baud rate: 9600bps Check digit: None    Stop bit: 1 bit Total protocol length: 10 bytes
●Volume: length 3.3cm*width 2cm*height 0.3cm.
●The new 47uf black large-capacitance tantalum capacitor is added to the new model, and the stability is significantly improved.
●Built-in single-chip microcomputer, which is controlled by N instructions such as peeling and correction, with powerful functions. Save the underlying development time.
●The voltage regulator circuit in the HX711 chip can directly provide power to the external pressure sensor.
●Simple serial communication, TTL to USB can be connected to the computer for data transmission, which is very convenient.
●It can simultaneously suppress 50Hz and 60Hz power interference.
●The power consumption is very small, the typical working current is 12mA.
●Working voltage range: DC 4.7~5.5V.
●Working temperature range: -20 ℃ ~ 85 ℃

MMA8452 high precision tilt sensor module
Module Model: GY-45 MMA8451 module MMA8452 module
Power supply: 3-5v (communication is fully compatible with 5v working system)
Module size = 14.5mm * 20.5 mm
Mounting hole diameter 3mm, hole distance 15mm
MMA8452 has a 12-bit resolution, intelligent low-power, three-axis, capacitive micro-mechanical acceleration sensor. This accelerometer has rich embedded functions with flexible user-programmable options and can be configured with up to two interrupt pins. MMA8452Q has
User-selectable ranges of ±2g/±4g/±8g can output high-pass filtered data and unfiltered data in real-time. The device can be configured to use any combination of configurable embedded functions to generate an inertial wake-up interrupt signal, which enables the MMA8452Q to monitor events while maintaining a low-power mode in a static state.
characteristic
Supply voltage: 1.95 V to 3.6 V
Interface voltage: 1.6 V to 3.6 V
±2g/±4g/±8g dynamic range optional
Output data rate (ODR) range: 1.56 Hz to 800 Hz
Noise: 99μg/√Hz
12-bit and 8-bit digital output
I2C digital output interface (when the pull-up resistance is 4.7 kΩ, the highest frequency can reach 2.25 MHz)
2 programmable interrupt pins for 6 interrupt sources
3 embedded channels for motion detection
Freefall or motion detection: 1 channel
– Pulse detection: 1 channel
– Shake detection: 1 channel
Orientation (horizontal/longitudinal) detection with set hysteresis compensation
ODR of automatic wake-up and automatic sleep can be changed automatically
High-pass filtered data can be output in real-time
Self-test
RoHS compliant
Power consumption: 6 μA – 165 μA
typical application
Electronic compass application
Stationary direction detection (horizontal/vertical, up/down, left/right, front/?
Drop and free-fall detection of notebooks, e-book readers, and portable computers
Real-time direction detection (virtual reality and game console 3D user position feedback)
Real-time activity analysis (pedometer step count, free-fall detection for HDD, GPS backup for speculative navigation)
Suitable for motion detection of portable energy-saving products (used for automatic sleep and automatic wake-up of mobile phones, PDAs, GPS, and game consoles)
Shock and vibration testing (mechatronics compensation, shipment, and warranty usage records)
User interface (menu scrolling through orientation change, label detection for button replacement)

Description:
This board works with the PICkit Serial Analyzer.
This boad allows the user to measure the unknown input voltage with a minimum amount of preparation.
Write and read the MCP3421 configuration register bits using the PICkit Serial Analyzer.
Read the ADC conversion results using the PICkit Serial Analyzer.
Many test pads including the SCL and SDA allow to monitor the I2C signals data comunications.
The user can connect the SDA and SCL pins to their own PCB board and evaluate the MCP3421 device performance.

GY-271 QMC5883L module, electronic compass module, three-axis magnetic field sensor
Using high-quality immersion gold PCB, machine welding technology to ensure quality
Name

QMC5883L module (three-axis magnetic field module)
Model

GY-271
Use chip

QMC5883L
Power supply

3~5v
Communication method

IIC communication protocol
Measuring range

±1.3-8 Gauss

CJMCU-GUVA-S12SD Sunlight Ultraviolet Intensity Sensor
Features:
1. Small size: 11mm×27mm
2. Low power consumption: power supply voltage is 2.5V～5V, working current is microampere level
3. Good linearity
4. High sensitivity
5. High stability
6. Wide detection range: 240nm-370nm
7. Large angle: 130 degrees
8. Photodiodes of Schottky type, suitable for photoelectric mode
Typical application:
UV tester, UV watch, outdoor sports equipment, mobile phone, etc.
This product can use the specifications of the mobile phone field. And there is a linear current directly corresponding to the UV INDEX.

Product parameter
Name

LSM303DLHC module (three-axis magnetic field   three-axis acceleration)
Model

GY-511
Chip

LSM303DLHC
Supply voltage

3~5
Communication method

Standard IIC communication protocol
Magnetic field range

±1.3 /±1.9 /±2.5 /±4.0 /±4.7 /±5.6 /±8.1 gauss
Acceleration range

±2 g/±4 g/±8 g
Size

14.5mm*20.5mm
Weight

1.5g
The chip has a built-in 12bit AD converter, 16-bit data output, high-quality heavy gold PCB, and machine welding process to ensure quality

CH340 to TTL download module with shell, using immersion gold PCB, with three packs of LED indicators, with anti-reverse connection, anti-high voltage protection circuit, the chip adopts the original CH340 chip to ensure stable communication and download.
⑴Professional custom USB interface
(2) 500mA current limiting fuse
⑶ blue power indicator
⑷ 3.3V transformer
⑸ Anti-high voltage protection circuit
⑹Anti-reverse protection circuit
⑺Function output interface
⑻ High-quality military-grade gold motherboard
⑼ Green data receiving indicator
⑽Red data sending indicator
⑾ Anti-backflow protection circuit
⑿ High precision oscillator
⒀TTL level selection jumper

Description
●ESP32-S is an ultra-small multi-function radio frequency group. The dual-core 
   ESP32 is used as the main control, and the module is equipped with PCB 
   on-board antenna and IPEX base antenna, which can be used according to the 
   needs of the scene.
●It uses ESP32 to integrate WiFi, traditional Bluetooth and Bluetooth Low Energy 
   (BLE Beacon),with two high-performance 32-bit LX6CPUs, a 7-stage pipeline 
   architecture, and a main frequency range of 80MHz to 240MH. On-chip sensors: 
   Hall sensors, temperature sensors, capacitive touch sensors.
●It is fully compliant with WiFi 802.11b/g/n/e/i and Bluetooth 4.2 standards. It 
   can be used as a master mode to build an independent network controller, or it 
   can be used as a slave to run on other host MCUs, adding networking functions 
   to existing devices.
●The module integrates a PCB on-board antenna and a U.FL socket selected by 
   a 0Ω resistor, and the on-board PCB antenna is used by default.
Parameter
Module modelv

ESP32-S
Encapsulation

SMD-38
Size

18.0*25.8*2.8（±0.2）mm
SPI Flash

Default 32Mbit
Bluetooth

Bluetooth 4.2 BR/EDR and BLE
WiFi

802.11b/g/n/e/i
Support interface

UART/SPI/SDIO/I2C/PWM/I2S/IR/ADC/DAC
IO port

22
On-chip sensor

Hall sensor\temperature sensor\capacitive touch sensor
Serial port rate

Default 115200bps
Spectrum range

2412~2484MHz
Antenna

Onboard PCB antenna and IPEX antenna base
Transmitting power

802.11b: 17±2 dBm(@11Mbps)
802.11g: 14±2 dBm(@54Mbps)
802.11n: 13±2 dBm(@HT20,MCS7)
Receiving sensitivity

CCK,1Mbps:-90dBm
CCK,11Mbps:-85dBm
6Mbps(1/2 BPSK):-88dBm
54 Mbps(3/4 64-QAM):-70dBm
MCS7(65Mbps,72.2Mbps):-67dBm
Power consumption

300mA@3.3V
Safety

WEP/WPA2/WPA2-Enterprise/WPS
Power supply range

3.0V~3.6V,
Operating temperature

-20℃~ 85℃
Storage environment

-40℃~ 90℃，<90％RH
Weight

1.5g

Product parameters:
1. Size: 41.5mm (length) * 19mm (width) * 15.3mm (H)
2. Weight: 5g
3.PCB Color: Black
4. Supply voltage: 2.5-6V
5. Support I2C protocol
6. The power control with backlight can be set via jumpers backlight power supply is connected. Plug jumper to connect the backlight, then unplug the jumper is off backlight power supply
7. The contrast can be adjusted by turning the blue potentiometer clockwise enhanced counterclockwise weakened. Potentiometer design on the front and the convenience of customers anytime, anywhere free adjustment
8. The module can cascade up to eight cascaded. / A1 / A2 modify the device address via short circuit A0. The default address is 0x27
NOTE:
Address modify (Because different batches of chips, there will be a different starting address),If the display is not complete or is not displayed, resolve the problem by following the tutorial.
1.Install library file, set the information in the folder to the position2.Detect the default start address(run the downloaded data inside the address matching detection program, call up the serial monitor. Readout default address)
3.The path to open the following figure has been installed inside the library routines, and use a step of detecting the resulting address at the replacement address the yellow flag, compile download. Connect LCD1602 restart to see the normal display

SHT20 temperature and humidity sensor module
product description:
The SHT20 digital temperature and humidity sensor introduced by Swiss Sensirion, based on the world's leading CMOSens ® digital sensing technology, has extremely high reliability and excellent long-term stability. Full-scale calibration, two-wire digital interface, can be directly connected to the single-chip microcomputer, greatly shortening the development time, simplifying the peripheral circuit, and reducing the cost. In addition, the small size, rapid response, low energy consumption, immersion, strong anti-interference ability, integrated temperature and humidity, and dew point measurement, high-cost performance, make this product suitable for applications on many occasions.
Technical Parameters:
1. Humidity measurement range: 0~100% RH
2. Humidity measurement accuracy: ±3% RH
3. Temperature measurement range: -40~125℃
4. Temperature measurement accuracy: ±0.3℃
5. Working voltage: 2.1~3.6VDC (please note: do not use 5V power supply!!!)
6. I2C interface output
Pin definition
VCC-Positive
GND- negative
SDA-data
SCL-clock
Standard I2C communication
Note: VCC access working voltage 2.1~3.6V DC

Modification of power amplifier board of lossless vehicle soundbox
Bluetooth decoder board
Support Bluetooth 4.1 mode, support automatic recovery to even number, support lossless decoding of WAV / APE / FLAC / MP3 files, support output stereo, onboard 3W power amplifier, support USB audio function, support TF card download, support U disk TF player card, Support infrared remote control function.
Parameter characteristics
Power Supply

3.7-5V
SNR

90dB
THD N

-70dB
Crosstalk

-86dB
DNR

91dB
Support Profile

A2DP/AVCTP/AVDTP/AVRCP/HFP
LOS

>15m
Size

46*40mm
Weight

10.4g
Pin Definition
1

Micro USB Supply

Micro USB 5V power supply port
2

USB Audio

Connecting this Micro USB port with the PC USB port by date wire, it can work as an external sound card of PC
3

U Disk

Supporting to play MP3/WAV/APE/FLAC files stored in the U Disk with FAT16/FAT32 file system format
4

LED Direction

The LED always bright in Bluetooth mode, and Flash in the music mode
5

TF Card

Supporting to play MP3/WAV/APE/FLAC files stored in the TF Card with FAT16/FAT32 file system format
6

IR Remote

Supporting IR remote controller
7

AD key interface

Supporting to connect external AD key according to the parameters defined in the circuit
8

Bluetooth Codec IC

The controller of the decoding board
9

3.5mm stereo output

Standard 3.5mm interface, output stereo, connect to earphone or power amplifier
10

Right channel 3W

The right channel of audio output, driving 3W speaker
11

Left channel 3W

The left channel of audio output, driving 3W speaker
12

3W*2 Power amplifier

Two 3W power amplifiers on board
13

3.7~5V Supply

These pads are used for modification by an external power
Operating specification
1.Mode Control
Bluetooth mode is the default, powered on when there is no U disk or TF card installed on board; And music mode is the default, powered on when U disk or TF card is installed onboard. Switching mode using a key or IR remote.
2.Music mode
Playing the audio files stored in the U disk and TF card, when plugging into U disk and TF card.
3.Bluetooth mode
When switching mode and playing“The BlueTooth device is ready to pair”, it goes into Bluetooth mode and is ready to pair. The device named“XY_BT”Cell phone searched is the decoding board device. Connecting the“XY_BT”device with a cell phone, the decoding board plays“The BlueTooth device is connected successfully”, the decoding board has connected with the cell phone successfully, and you can playing music through the BlueTooth device. Showing in the below picture.
4.USB Audio mode
Connecting the decoding board with PC by USB data wire. Switching mode and playing“USB mode”, it's in USB Audio mode. Playing music by PC player, and the decoding board will play the music in the PC player list. If plugging into TF card can download music into the TF card from PC.
Precautions:
1.When working in the USB Audio mode, the U disk mustn't be plugged into the board.
2.In the U disk playing mode, suggesting that use 5V power to supply(don't use 3.7V power to supply), because earlier U disk can't support 3.7V power supply.
3.When using mobile power and PC USB port to supply, must use Power port on the board(mustn't use USB Audio port onboard), or can't play audio files stored in U disk.
4.This decoding board only supports FAT16/FAT32 file system format, both U disk, and TF card, don't support NTFS file system format.
Package Included:
1* Bluetooth Decoding Board
1* Remote Control

Product information
1: Ultra-thin product: to reduce the height of hybrid integrated circuit components, and replace the traditional plug-in Y-CAP with patch Y-CAP.
2: Using chip Y-cap back-attachment (board height <2.6mm) process design, using HIC two-sided space intensive design, effectively reducing the total area and thickness of HIC, and realizing miniaturization of hybrid integrated circuit products.
3: Optimize design and impMrove reliability: by designing the chip Y-cap back to keep it away from other power-type components on the front, avoiding Y-cap temperature rise due to heat release and thermal breakdown failure caused by poor heat dissipation ; At the same time, avoid inter-electrode arc discharge when the distance between the components is too close.
4: Realize the effect:
(1) Chip Y-capSMD reel and tape packaging, suitable for SMT automatic surface mounting, instead of PCB plug-in installation.
(2) Improve customer production efficiency and save labor and system costs.
(3) Improve the consistency level of customer product quality, and avoid the low probability of plug-in technology, false welding and other defects
Y1 221K 400VAC SMD Safety Ceramic Capacitor for AC 
capacitor classed sub-class Y1
Nominal capacity 220PF
Capacity of tolerance K(±10% )
Rated Voltage: 400VAC ( Y1)
Product structure:
Dimensions(mm)
L

7.8±0.1

W1

2.5±0.05
W

5.4±0.1

T

0.13±0.05
H

2.38±0.05

H1

0.05±0.03
L1

9.6±0.2

L3

0.5±0.1
L2

8.4±0.2


No.

Part name

Material

Model
①

Coating

Epoxy molding compound  (Conforming to UL94V-0 standard )

/
②

Electrode

Silver

/
③

Solder

Sn-Pb-AgSolde

/
④

Lead wire

Copper alloys

/
⑤

Dielectric

Ceramic

All series
Pin structure:

Product parameter
Product name

Bluetooth Decoder
Product model

XY-WRBT
Working Voltage

DC3.7~24V
Bluetooth Version

5.0
Transmission distance

15m(visible and unshielded
Signal-to-noise ratio

≧90dB
Distortion

≦-70dB
Number of vocal tract

Dual-Channel(Stereo)
Audio interface

3.5mm audio interface
Modular protection mechanism

Back-connection Protection of power supply
1. Power supply can use Micro-USB mobile phone charger, 3.7-4.2V lithium battery, 3.7-24V DC power supply, you can choose one of the three.
2. Short-circuit the "on/off contact" for 2 seconds to set the decoder board on/off. For battery-powered situations, turning off when not in use will save power and facilitate modification.
Instructions
After the power is turned on, the blue indicator light flashes quickly and enters the Bluetooth mode; after the "prompt tone" is broadcast, it enters the pairing mode and waits for pairing; the mobile phone Bluetooth searches for "XFY-BT" (the name of the power amplifier board device), and clicks "XFY-BT" After the connection is successful, the "prompt tone" will be played, and the indicator light will be on, and the mobile phone music can be played. The indicator flashes slowly when playing music; after the Bluetooth is disconnected, the amplifier board is ready for the next pairing and enters after the "prompt tone" is played Pairing mode is waiting for pairing.
Precautions for using 3.7V lithium battery power supply
1. When using battery power, the decoder board will automatically shut down when the battery voltage is lower than 3.3V, and then short-circuit the on/off contact for 2 seconds to turn it on after re-powered or fully charged.
2. When using a battery to supply power, if the battery voltage is too low, a "sizzling" noise may appear. In this case, the battery needs to be charged.
3. Since there is no lithium battery charging protection circuit on the decoder board, it is recommended to use a lithium battery with a protection board.
4. If your rechargeable battery supports Micro USB direct charging, you can use Micro USB to directly charge the battery.

Module description:
The RC522 module is a Mifare card reader/writer module based on NXP’s NXP radio frequency base station chip. The module works at 13.56MHz, conforms to the ISO14443A standard, and supports Mifare1 S50, Mifare1 S70, Mifare Light, Mifare UltraLight, and Mifare Pro. The module has the characteristics of easy-to-use, high reliability, and small size, which can help customers to apply contactless cards to the system conveniently and quickly.
Interface pin definition and module parameters
Modulesize

3.5MM*2.5MM,ultra-smallsize,easytoembedinyoursystem
Workingfrequency

13.56MHz
OperatingVoltage

2.5~3.6V
Workingcurrent

Useprogramroutinestofindcardcurrent20mA(3.3Vpowersupply)
Supporttype

MIFIRE1S50S70UltraLightPro
Operatingtemperature

-25℃~ 85℃
Label

IOtype

Functiondescription
3.3V

Powersupply

Powerispositive
GND

Powersupply

Powerground
RST

Enter

Reset
MISO

Output

SPIportslaveoutput
MOSI

Enter

SPIportslaveinput
SCK

Enter

SPIportclock
NSS

Enter

SPIportchipselection
【Shipping list】
1. One RC522 mini-version module;
2. A standard S50 blank card;
3. One S50 special-shaped card (the shape of the keychain as shown in the picture);
4. One 7P pin header;

Module characteristics
1. Built-in synchronous switch step-down converter chip
2. Input voltage range: 4.5V to 32V (The input voltage must be higher than the output voltage because it is a voltage drop module)
3. Output voltage range: 3V to 12V, automatically adjusted according to the fast charge protocol
4. Output power: maximum 24W (4V@3.6A, 5V@3.4A, 9V@2.5A, 12V@2A, etc.)
5. Wired output voltage compensation
6. The output has CV/CC characteristics (output current is less than the set value, output CV mode; output current is greater than the set value, output CC mode)
7. The conversion efficiency is up to 97%
8. Soft start function
9. 220Khz switching frequency
Output fast charge
1. Support BC1.2, Apple, Samsung agreement
2. Support Qualcomm QC2.0 and QC3.0
3. Support MTK PE1.1/PE2.0
4. Support Huawei Fast Charge Protocol FCP
5. Support Samsung Quick Charge Agreement AFC
6. Support Spreadtrum fast charge protocol SFCP
Multiple protection, high reliability
1. Output overcurrent, input overvoltage, input undervoltage, output short circuit protection
2. The over-temperature protection of the whole machine
3. ESD 4KV, DC withstand voltage 48V
Use
The USB output voltage of car chargers, fast charging adapters, smart power strips, solar chargers, etc. depends on your device. The output voltage of different devices is different. The conventional USB output voltage is 5V. It can output different fast charging voltages according to the QC protocol. Generally, the fast charging voltage of mobile phones is 9V 12V, and some devices support 5V high-current fast charging, and devices that do not support fast-charge charging with low current.

1. Supply Voltage: 2.7v-5.5v @ 3mA current
2. Output: 2Vpp on 1.25V bias
3. Frequency Response: 20Hz - 20 KHz
4. Programmable Attack and Release Ratio
5. Automatic gain, selectable max from 40dB, 50dB or 60dB
6. Low Input-Referred Noise Density of 30nV/
7. Low THD: 0.04% (typ)
Package included:
1PCS x  MAX9814 Microphone AGC Amplifier Board Module

W1209 temperature controller(Parameter)
Temperature range

-50℃~110℃

Working power supply

DC12V
Accuracy

0.1℃

Refresh rate

0.5S
Input

NTC(10K0.5％)Waterproof

Current

Staticcurrent<35mA,
gewinnencurrent<65mA
Output

20ARelay

Display

0.28"red digital tube(3)
Returndifferdnceaccuracy

0.1℃

Weight

24g(Packing)
Temperature protection

0℃~110℃

Size

49mm*40m*15.8mm(L*W*H)
Resolution

0.1℃(-9.9~99.9),1℃(Other)

Packaging

Electrostaticbagpacking



W1209 temperature controller(Function)
Code

Code definition

Set range

Factory default
P0

Cooling/heating

C/H

C
P1

Returndifferdnceset

0.1~30

2
P2

Temperature(HIGHT)

110℃

110
P3

Temperature(LOW)

-50℃

-50
P4

Temperature calibration

-7℃~7℃

0
P5

Delaystarttime

0~600S

0
P7

High-temperature alarm

0~110℃

OFF
P8

Restorethefactorydefault

C/H

C
Shutdowmstate,longpress -bootcanrestorethefactorySettings

Product information
1: Ultra-thin product: to reduce the height of hybrid integrated circuit components, and replace the traditional plug-in Y-CAP with patch Y-CAP.
2: Using chip Y-cap back-attachment (board height <2.6mm) process design, using HIC two-sided space intensive design, effectively reducing the total area and thickness of HIC, and realizing miniaturization of hybrid integrated circuit products.
3: Optimize design and impMrove reliability: by designing the chip Y-cap back to keep it away from other power-type components on the front, avoiding Y-cap temperature rise due to heat release and thermal breakdown failure caused by poor heat dissipation ; At the same time, avoid inter-electrode arc discharge when the distance between the components is too close.
4: Realize the effect:
(1) Chip Y-capSMD reel and tape packaging, suitable for SMT automatic surface mounting, instead of PCB plug-in installation.
(2) Improve customer production efficiency and save labor and system costs.
(3) Improve the consistency level of customer product quality, and avoid the low probability of plug-in technology, false welding and other defects
Dimensions(mm)
L

7.8±0.1

W1

2.5±0.05
W

5.4±0.1

T

0.13±0.05
H

2.38±0.05

H1

0.05±0.03
L1

9.6±0.2

L3

0.5±0.1
L2

8.4±0.2


No.

Part name

Material

Model
①

Coating

Epoxy molding compound  (Conforming to UL94V-0 standard )

/
②

Electrode

Silver

/
③

Solder

Sn-Pb-AgSolde

/
④

Lead wire

Copper alloys

/
⑤

Dielectric

Ceramic

All series
Pin structure:

Product information
1: Ultra-thin product: to reduce the height of hybrid integrated circuit components, and replace the traditional plug-in Y-CAP with patch Y-CAP.
2: Using chip Y-cap back-attachment (board height <2.6mm) process design, using HIC two-sided space intensive design, effectively reducing the total area and thickness of HIC, and realizing miniaturization of hybrid integrated circuit products.
3: Optimize design and impMrove reliability: by designing the chip Y-cap back to keep it away from other power-type components on the front, avoiding Y-cap temperature rise due to heat release and thermal breakdown failure caused by poor heat dissipation ; At the same time, avoid inter-electrode arc discharge when the distance between the components is too close.
4: Realize the effect:
(1) Chip Y-capSMD reel and tape packaging, suitable for SMT automatic surface mounting, instead of PCB plug-in installation.
(2) Improve customer production efficiency and save labor and system costs.
(3) Improve the consistency level of customer product quality, and avoid the low probability of plug-in technology, false welding and other defects
Y1 471K 400VAC SMD Safety Ceramic Capacitor for AC 
capacitor classed sub-class Y1
Nominal capacity 470PF
Capacity of tolerance K(±10% )
Rated Voltage: 400VAC ( Y1)
Product structure:
Dimensions(mm)
L

7.8±0.1

W1

2.5±0.05
W

5.4±0.1

T

0.13±0.05
H

2.38±0.05

H1

0.05±0.03
L1

9.6±0.2

L3

0.5±0.1
L2

8.4±0.2


No.

Part name

Material

Model
①

Coating

Epoxy molding compound  (Conforming to UL94V-0 standard )

/
②

Electrode

Silver

/
③

Solder

Sn-Pb-AgSolde

/
④

Lead wire

Copper alloys

/
⑤

Dielectric

Ceramic

All series
Pin structure:

Product information
1: Ultra-thin product: to reduce the height of hybrid integrated circuit components, and replace the traditional plug-in Y-CAP with patch Y-CAP.
2: Using chip Y-cap back-attachment (board height <2.6mm) process design, using HIC two-sided space intensive design, effectively reducing the total area and thickness of HIC, and realizing miniaturization of hybrid integrated circuit products.
3: Optimize design and impMrove reliability: by designing the chip Y-cap back to keep it away from other power-type components on the front, avoiding Y-cap temperature rise due to heat release and thermal breakdown failure caused by poor heat dissipation ; At the same time, avoid inter-electrode arc discharge when the distance between the components is too close.
4: Realize the effect:
(1) Chip Y-capSMD reel and tape packaging, suitable for SMT automatic surface mounting, instead of PCB plug-in installation.
(2) Improve customer production efficiency and save labor and system costs.
(3) Improve the consistency level of customer product quality, and avoid the low probability of plug-in technology, false welding and other defects
Y1 152M 400VAC SMD Safety Ceramic Capacitor for AC 
capacitor classed sub-class Y1
Nominal capacity 1500PF
Capacity of tolerance M(±20% )
Rated Voltage: 400VAC ( Y1)
Product structure:
Dimensions(mm)
L

7.8±0.1

W1

2.5±0.05
W

5.4±0.1

T

0.13±0.05
H

2.38±0.05

H1

0.05±0.03
L1

9.6±0.2

L3

0.5±0.1
L2

8.4±0.2


No.

Part name

Material

Model
①

Coating

Epoxy molding compound  (Conforming to UL94V-0 standard )

/
②

Electrode

Silver

/
③

Solder

Sn-Pb-AgSolde

/
④

Lead wire

Copper alloys

/
⑤

Dielectric

Ceramic

All series
Pin structure:

Product information
1: Ultra-thin product: to reduce the height of hybrid integrated circuit components, and replace the traditional plug-in Y-CAP with patch Y-CAP.
2: Using chip Y-cap back-attachment (board height <2.6mm) process design, using HIC two-sided space intensive design, effectively reducing the total area and thickness of HIC, and realizing miniaturization of hybrid integrated circuit products.
3: Optimize design and impMrove reliability: by designing the chip Y-cap back to keep it away from other power-type components on the front, avoiding Y-cap temperature rise due to heat release and thermal breakdown failure caused by poor heat dissipation ; At the same time, avoid inter-electrode arc discharge when the distance between the components is too close.
4: Realize the effect:
(1) Chip Y-capSMD reel and tape packaging, suitable for SMT automatic surface mounting, instead of PCB plug-in installation.
(2) Improve customer production efficiency and save labor and system costs.
(3) Improve the consistency level of customer product quality, and avoid the low probability of plug-in technology, false welding and other defects
Y2 222M 300VAC SMD Safety Ceramic Capacitor for AC 
capacitor classed sub-class Y2
Nominal capacity 2200PF
Capacity of tolerance M(±20% )
Rated Voltage: 300VAC ( Y2)

Product information
1: Ultra-thin product: to reduce the height of hybrid integrated circuit components, and replace the traditional plug-in Y-CAP with patch Y-CAP.
2: Using chip Y-cap back-attachment (board height <2.6mm) process design, using HIC two-sided space intensive design, effectively reducing the total area and thickness of HIC, and realizing miniaturization of hybrid integrated circuit products.
3: Optimize design and impMrove reliability: by designing the chip Y-cap back to keep it away from other power-type components on the front, avoiding Y-cap temperature rise due to heat release and thermal breakdown failure caused by poor heat dissipation ; At the same time, avoid inter-electrode arc discharge when the distance between the components is too close.
4: Realize the effect:
(1) Chip Y-capSMD reel and tape packaging, suitable for SMT automatic surface mounting, instead of PCB plug-in installation.
(2) Improve customer production efficiency and save labor and system costs.
(3) Improve the consistency level of customer product quality, and avoid the low probability of plug-in technology, false welding and other defects
Y1 222M 400VAC SMD Safety Ceramic Capacitor for AC 
capacitor classed sub-class Y1
Nominal capacity 2200PF
Capacity of tolerance M(±20% )
Rated Voltage: 400VAC ( Y1)
Product structure:
Dimensions(mm)
L

7.8±0.1

W1

2.5±0.05
W

5.4±0.1

T

0.13±0.05
H

2.38±0.05

H1

0.05±0.03
L1

9.6±0.2

L3

0.5±0.1
L2

8.4±0.2


No.

Part name

Material

Model
①

Coating

Epoxy molding compound  (Conforming to UL94V-0 standard )

/
②

Electrode

Silver

/
③

Solder

Sn-Pb-AgSolde

/
④

Lead wire

Copper alloys

/
⑤

Dielectric

Ceramic

All series
Pin structure: