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Si7021 Industrial High Precision Humidity Sensor with I2C Interface

Description:
 
100% brand new and high quality
The Si7021 I2C Humidity and Temperature Sensor is a monolithic CMOS IC integrating humidity and temperature sensor elements, an analog-to-digital
converter, signal processing, calibration data, and an I2C Interface. The patented use of industry-standard, low-K polymeric dielectrics for sensing humidity enables the construction of low-power, monolithic CMOS Sensor ICs with low drift and hysteresis, and excellent long term stability
The humidity and temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This ensures that the sensors are fully interchangeable, with no recalibration or software changes required
The Si7021 is available in a 3x3 mm DFN package and is reflow solderable. It can be used as a hardware- and software-compatible drop-in upgrade for existing RH/temperature sensors in 3x3 mm DFN-6 packages, featuring precision sensing over a wider range and lower power consumption. The optional factory-installed cover offers a low profile, convenient means of protecting the sensor during assembly (e.g., reflow soldering) and throughout the life of the product, excluding liquids (hydrophobic/oleophobic) and particulates
The Si7021 offers an accurate, low-power, factory-calibrated digital solution ideal for measuring humidity, dew-point, and temperature, in applications ranging from HVAC/R and asset tracking to industrial and consumer platforms
Features:
Precision Relative Humidity Sensor
± 3% RH (max), 0-80% RH
High Accuracy Temperature Sensor
±0.4 °C (max), -10 to 85 °C
0 to 100% RH operating range
Up to -40 to 125 °C operating range
Wide operating voltage (1.9 to 3.6 V)
Low Power Consumption 150 A active current
60 nA standby current
Factory-calibrated
I2C Interface
Integrated on-chip heater
3x3 mm DFN Package
Excellent long term stability
Optional factory-installed cover
Low-profile
Protection during reflow
Excludes liquids and particulates
Applications:
HVAC/R
Thermostats/humidistats
Respiratory therapy
White goods
Indoor weather stations
Micro-environments/data centers
Automotive climate control and defogging
Asset and goods tracking
Mobile phones and tablets
 
Package Included:
1 Pcs Si7021 Module

 
433Mhz HC-12 SI4463 Wireless Serial Port Module 1000m Replace Bluetooth NEW
 

 
Description:
PS: HC-11 can not be connected to communicate with the HC-12, they work independently, in pairs.
1: Supply voltage 3.2V ~ 5.5V. (If you want to work in the module launch state for a long time, it is recommended when the supply voltage exceeds 4.5V series with a 1N4007 diode, to avoid heating module built LDO) 
2: Default communication distance (open test): about 600m (adjustable to achieve the maximum communication distance of 1000m, the air baud rate 5000bps). 
3: The default idle current: 16MA (modules in different operating current of the different operating modes).
4: Module Size: 27.8mm × 14.4mm × 4mm.
5: Operating frequency range (433.4-473.0MHz, up to 100 communication channels) Maximum 100mW transmit power (can be set) 
6: The module supports software upgrades. (We provide customers with software upgrades) 
7: The default factory settings: operating mode FU3, baud rate 9600bps, communication channel CH001 (433.4M).
 
Package Included:
1 Pcs SI4463 Wireless Serial Port Module
 

 
 
 
Nano V3.0 CH340 USB Driver 16Mhz Nano ATMEGA168P NANO Expansion Prototype Shield I/O Extension Board Module
 
 
 
Description
Nano  ATMEGA168P :
1. 20 digital input/output port RX and TX, D2 ~ D13, A0 ~ A5
2. 8 analog input port A0 ~ A7
3. 1 to the TTL level a serial port to send and receive port RX/TX
4. 6 PWM port, D3, D5, D6, D9, D10, D11
5. Using Atmel Atmega168P-AU microcontroller
6. Support serial download and ISP download
7. Support external 3.3V ~ 12V dc power supply
8. Support the Li-ion polymer batteries while direct connect Vcc Pin 
9. 16 MHZ clock frequency
NANO multi-purpose expansion board for NANO tailored a sensor expansion board to solve the NANO when connecting a variety of sensor wiring confusing problem , as you develop works of the weapon.
   1.IO port leads all digital and analog IO ports, each IO port has positive and negative power supply interface standard.
   2. Leads to an I2C interface on the motherboard , convenient and I2C devices connected.
   3.Increasing the DC power connector . NANO USB interface board supply current is actually only 50MA, to bring high-current devices, such as when the steering is obviously insufficient , this time in the DC power supply interface provides external power to ensure the stability of equipment operation .
 
Package Included
1 Pcs Nano ATMEGA168P Development board
1 Pcs Nano 3.0 Shield Expansion Development Board
 
 
 
 

 
 
 
Nano V3.0 CH340 USB Driver 16Mhz Nano ATMEGA168P NANO Expansion Prototype Shield I/O Extension Board Module
 
 
 
Description
Nano  ATMEGA168P :
1. 20 digital input/output port RX and TX, D2 ~ D13, A0 ~ A5
2. 8 analog input port A0 ~ A7
3. 1 to the TTL level a serial port to send and receive port RX/TX
4. 6 PWM port, D3, D5, D6, D9, D10, D11
5. Using Atmel Atmega168P-AU microcontroller
6. Support serial download and ISP download
7. Support external 3.3V ~ 12V dc power supply
8. Support the Li-ion polymer batteries while direct connect Vcc Pin 
9. 16 MHZ clock frequency
NANO multi-purpose expansion board for NANO tailored a sensor expansion board to solve the NANO when connecting a variety of sensor wiring confusing problem , as you develop works of the weapon.
   1.IO port leads all digital and analog IO ports, each IO port has positive and negative power supply interface standard.
   2. Leads to an I2C interface on the motherboard , convenient and I2C devices connected.
   3.Increasing the DC power connector . NANO USB interface board supply current is actually only 50MA, to bring high-current devices, such as when the steering is obviously insufficient , this time in the DC power supply interface provides external power to ensure the stability of equipment operation .
 
Package Included
1 Pcs Nano ATMEGA168P Development board
1 Pcs Nano 3.0 Shield Expansion Development Board
 
 
 
 

 
STM32F103C8T6 ARM STM32 Minimum System Development Board Module For Uno
Description:
Model: STM32F103C8T6.
Core: ARM 32 Cortex-M3 CPU.
72MHz work frequency.
64K flash memory, 20K SRAM.
2.0-3.6V power, I/O.
Reset(POR/PDR).
4-16MHz crystal.
On-board Mini USB interface, you can give the board power supply and USB communication.
Size:5.3cm x 2.2cm.
Package included:
1 Pcs STM32F103C8T6 ARM STM32 Minimum System Development Board Module
 

 
WS2812 LED 5050 RGB 8x8 64 LED Matrix
 
 
Description:
Size:65mm*65mm
Voltage:DC 5V
Interface:IO
8*8=64RGB
Chip:WS2812b
 
Package Included:
1 Pcs 64 LED Matrix WS2812
 

 
Wireless Zig bee CC2531 Sniffer Bare Board Packet Protocol Analyzer Module USB Interface Dongle Capture Packet Zig bee Module
 

 
Description:
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
 
Package Included:
1 Pcs Wireless Zig bee CC2531 Sniffer Bare Board Packet Protocol Analyzer Module
 

150W DC-DC Boost Converter 12-32V to 12-46V Step Up Voltage Charger Module
Product Description
Hot !150W DC-DC Boost Converter 12-32V to 12-46V Step Up Voltage Charger Module
Features:
100% Brand new and high quality!!
DIY a power supply, 12V can input and output can 12-46V adjustable.
The power supply for your electronic device, according to your system can set the output voltage value.
As the car power supply for your laptop, PDA or a variety of digital products supply. An optional high-grade brushed aluminum alloy shell thickening, direct PK offthe market average or car power inverter, is like metallic your best choice.
DIY a mobile notebook power supply: 12V coupled with high-capacity lithium battery pack, so you can go everywhere with your notebook
Specification:
Module Name: 150W boost module
Module Properties: non-isolated step-up module (BOOST)
Input voltage: 12-32V input (for wide input voltage range of applications)
Input Current: 16A (MAX) exceeds 8A please enhance heat dissipation
Quiescent current: 15mA (12V-liter 20V, the output voltage, the higher the current will increase too quiet)
Output voltage: 12-46V continuously adjustable
Output Current: 8A MAX than 4A please enhance heat dissipation (input, output pressure related to the pressure the greater the output current is smaller)
Output power: natural cooling 90W, enhance heat dissipation 150W
Working temperature: -40 ~ 85 degrees (ambient temperature is too high, please enhance heat dissipation)
Operating frequency: 150KHz
Conversion efficiency: up to 95% (efficiency and input and output voltage, current, pressure-related)
Short circuit protection: (Enter the 15A fuse)
Input reverse polarity protection: Yes
Connection: Terminal-free welding output, with housing for welding output. (V-IN is input, V-OUT output)
Color: Silver
Size: approx. 85 x 58 x 33mm
Net Weight: 98g
Package includes:
1 Pcs 150W DC-DC Boost Module

3D printer Parts For Ramps1.4 2004 lcd RepRap lcd 2004
 
Description:
1 large screen LCD 2004
2 back integrated SD card, SD card file into the section, select the corresponding file can be printed on LCD.
3 the product comes with the encoder, can realize the parameter adjustment, and the document choice printing!
 
Package list :
1 Pcs 2004 LCD
1 Pcs Adapter
2 Pcs Flat Cable

DC12-24V 24 Keys Music Controller IR Remote RGB Controller Sound Sensitive for 5050 3528 Led Strip Light Lamp
 
Description
Working voltage: DC12V~24V
Max output power: 108W(12V) 216W(24V)
Output: 3 channels
Output current: 3A/channel
Connect mode: Common anode
Control mode: IR
Remote powered by: 1 * CR2025 (not include)
Control distance: 5~15m
Working temperature: -20~45degrees Celsius
Remote control size: Approx. 8.5 * 5.2 * 0.5cm
Controller size: Approx.17 * 8.6 * 2.9cm
Package weight: Approx. 155g
Color changes with the beat of music.
With infrared wireless remote control, very easy to control RGB LED strips.
16 static colors, 2 dynamic modes: flash and fade; 2 sound changing mode.
Adjustable sound receiving sensitivity.
3-way output ports.
Adjustable brightness and dynamic playing speed.
Wide input voltage and high power output.
 
Package Included
1 Pcs DC12-24V 24 Keys Music Controller

150W DC-DC Boost Converter 12-32V to 12-46V Step Up Voltage Charger Module new arrival
Product Description
Hot !150W DC-DC Boost Converter 12-32V to 12-46V Step Up Voltage Charger Module
Features:
100% Brand new and high quality!!
DIY a power supply, 12V can input and output can 12-46V adjustable.
The power supply for your electronic device, according to your system can set the output voltage value.
As the car power supply for your laptop, PDA or a variety of digital products supply. An optional high-grade brushed aluminum alloy shell thickening, direct PK offthe market average or car power inverter, is like metallic your best choice.
DIY a mobile notebook power supply: 12V coupled with high-capacity lithium battery pack, so you can go everywhere with your notebook
Specification:
Module Name: 150W boost module
Module Properties: non-isolated step-up module (BOOST)
Input voltage: 12-32V input (for wide input voltage range of applications)
Input Current: 16A (MAX) exceeds 8A please enhance heat dissipation
Quiescent current: 15mA (12V-liter 20V, the output voltage, the higher the current will increase too quiet)
Output voltage: 12-46V continuously adjustable
Output Current: 8A MAX than 4A please enhance heat dissipation (input, output pressure related to the pressure the greater the output current is smaller)
Output power: natural cooling 90W, enhance heat dissipation 150W
Working temperature: -40 ~ 85 degrees (ambient temperature is too high, please enhance heat dissipation)
Operating frequency: 150KHz
Conversion efficiency: up to 95% (efficiency and input and output voltage, current, pressure-related)
Short circuit protection: (Enter the 15A fuse)
Input reverse polarity protection: Yes
Connection: Terminal-free welding output, with housing for welding output. (V-IN is input, V-OUT output)
Color: Silver
Size: approx. 85 x 58 x 33mm
Net Weight: 98g
Package includes:
1 Pcs 150W DC-DC Boost Module

 
24V12V5V Switching Power Supply Board High Power Industrial Power Supply Module 2-way Output With Adjustment
 

 
Description:
AC90~260V wide voltage input, output dual 17-34V, 2V-32V adjustable output,Small size with indicator light.
Input voltage:AC 100~ 260v 50/60HZ 
Output voltage:
The first output:17-34V (4A, 24V voltage test)
The second output:voltage 2V-32V current 3-5A (5A is the test under 12V voltage)
Total power:100W
Positioning hole size:9.8X4.7 (CM)
Overall size:10.65X5.7 (CM)
Ripple noise:≤200MV
Weight:150g
 
Package Included:
1 Pcs Power Supply Board
 

 
GT-38 Wireless MCU Serial Module SI4438/4463 433M Distance 1200 Meters UART Interface

 
Description:
Module characteristics
1.Long-distance wireless transmission(opening 1200 m/FU4 mode, air baud rate 1000bps)
2.Operating frequency range(433-458.5MHZ, up to 255 communication channels)
3.Maximum 100mw (20dbm) transmit power (8-speed power can be set)
4.Four working modes to suit different applications
5.Built-in MCU for communication via serial port and external devices
6.The number of bytes sent at one time is up to 256 bytes
7.Module supports one-to-one, one-to-many, many-to-many connections
 
If you need more information, please contact us, thank you.
 
Package Included:
1 Pcs GT-38 Wireless MCU Serial Module
 

HM - 10 from HuaMao Bluetooth 4.0 Module Transparent Serial Port BASE PLATE NOT INCLUDED HM-10 core chip CC2540/2541
Description:
Internal with logic level conversion circuit. No need external 5V level to turn into a 3.3V level
The power input port with anti-anti-circuit. To avoid accidental power plug reversed, leading to the module burned
HM-10, HM-11 series Bluetooth module using TI CC2540/2541 chip, configuration 256Kb space, support
AT commands, you can change the role (master and slave mode) and the baud rate, the device name,
Pairing password and other parameters, convenient and flexible.
Parameters:
Bluetooth protocol: Bluetooth Specification V4.0 BLE
USB Protocol: USB V2.0
Operating Frequency: 2.4GHz ISM band
Modulation: GFSK (Gaussian Frequency Shift Keying)
Transmit power: ≤4dBm
Sensitivity: ≤-84dBm at 0.1% BER
Transfer rate: Asynchronous: 6 kbps, Synchronous: 6 kbps
Security Features: Authentication and encryption
Support Services: Central & Peripheral UUID FFE0, FFE1
Power supply: 3.3VDC 50mA
Working temperature: -5 ~ 65 Centigrade
Dimensions: 27 x 13 x 2.2 mm.
Note:
Support Apple IOS5 /IOS6 system, please download the files before you buy it.
BT V4 module interfaces and microcontroller connection requires only four lines: 5V (VCC) GND TXD RXD
Application areas:
Industrial remote control, remote sensing
POS system, bluetooth keyboard, mouse, game controllers
Automobile testing equipment
Portable, battery power of medical equipment
Automated data collection
Bluetooth remote control toy
The wireless LED display system
Bluetooth printer
Intelligent household, industrial control
Package included:
1 Pcs HM-10 Bluetooth 4.0 Module

 
 
FSR402 Force Sensitive Resistor 0.5 Inch FSR For Arduino Diy Kit
 
 
Description
FSR402 a light weight, small size, high precision sensor, ultra-thin resistive pressure sensor.This kind of pressure sensor is to take place in FSR film sensor area pressure into the change of the resistance value, thus for pressure information.The lower the pressure, the greater the resistance.Allow its use in place of pressure 100 g - 10 kg.The terminal holder sensor can be used in the manipulator with or without holding items, bionic robot first step walk the ground sensors, mammals bite test of biological experiments, application scope and widely.
 
Specification
Sensing area (Sensing range) : 0.5 "circle
The Output signal (Output signal) : Passive variable to hold
The Force sensitive range (range), pressure test: 100 g to 10 kg
Lifetime (life) : > 10 m letters actuations
Dimensions:
Overall length: 2.375"
Overall width: 0.75"
Sensing the diameter: 0.5"
 
Package Included
1 Pcs FSR402 Pressure Sensor
 

5A CC/CV W USB Voltmeter LED Drive Step down Lithium charger Power Module CASE
Description:
1.Module with crystal shell,safer and more beautiful.
2.Contains the voltmeter, ammeter, power meter, USB interfacefor charging the digital products.
 
Note:
1.When you use the product, the module inputs and outputs to be isolated from ground.
2.USB output voltage is consistent with the module, not a fixed 5V output.
When charging for digital equipment, make sure USB output voltage is 5V.
3.Some customers report:“The module can not adjust the output voltage is always equal to the input voltage.”
When you encounter this problem, please counterclockwise rotation of the“voltage potentiometer”10 laps or more,
then use the module you can adjust the output voltage. Because the factory default output voltage of about 20V.
4.Shell assembly is very simple, but "left""right""front" panel are directional, you must pay attention during assembly!
 
Specifications
1.Input voltage range:5-36VDC(Input voltagehigher than 6.2V, constant function will be effective)
2.Output voltage range:1.25-32VDC adjustable(Output voltage higher than 6.2V, constant function will be effective)
3.Output current: 0-5A
4.Output power: 75W
5.High efficiency up to 96%
6.Built in thermal shutdown function
7.Built in current limit function
8.Built in output short protection function
9.Input reverse polarity protection: None (if required, high current diode in series with the input).
10.Bare board size:L x W x H =68.2×38.8×15mm
11.Weight:73g
 
Application
1.Use as a step-down modules with overcurrent protection
Usage:
(1) Adjust the right button so that“OUT”LED lighted, Digital meter shows the value of output voltage ,adjust the“voltage potentiometer”so that the output voltage reaches the value you want.
(2) Adjust the right button so that Digital meter shows the value of output current;Wire shorted output terminal, then adjust the“current potentiometer”so that the output current reaches a predetermined overcurrent protection value. (For example, the Digital meter displays the current value of 4A, then you can use the module to a maximum current of 4A)
(3) Connected to the load.
 
2.Use as a battery charger
Usage:
(1) Make sure you need to charge the battery float voltage and charging current;
(if lithium parameters 3.7V/2200mAh, then the float voltage is 4.2V, the maximum charging current 1C, ie 2200mA)
(2)Under no-load conditions, adjust the“Voltage potentiometer”so that the output voltage reaches the float voltage;
(if to 3.7V rechargeable lithium battery, the output voltage can be adjusted to 4.2V)
(3)Adjust the right button so that Digital meter shows the value of output current;Wire shorted output terminal, then adjust the“current potentiometer”so that the output current reaches a predetermined Charging current value.
(4)Charge turn lamp current factory default is 0.1 times the charging current;
(Battery during charging current is gradually reduced, if the charge current setting is 1A, then when the charge current is less than 0.1A, blue lights turned off, the green light is on, which means that the battery is fully charged)
(5)connected to the battery charge.
(1,2,3,4 steps as: Output is unloaded, do not connect the battery)
 
3.Use as a LED constant current driver module
Usage:
(1)Adjust the“voltage potentiometer”so that the output voltage reaches the value you want.
(2)Adjust the right button so that Digital meter shows the value of output current;Wire shorted output terminal, then adjust the“current potentiometer”so that the output current reaches a predetermined LED operating current.
(3)Connect LED, work.
(1,2 steps as: Output is unloaded, do not connect LED)
Voltmeter and ammeter calibration method:
Module with manual calibration function can correct display precision voltage and current, if you think the current voltage and current accuracy to meet the requirements, do not perform the following operations.
 
(1) Output voltage calibration steps
Step 1, adjust the right button so that“OUT”LED lighted, Digital meter shows the value of output voltage; Press the right button for more than 2 seconds, release, Digital meter and“OUT”LED flashes in synchronization so that you enter the output voltage calibration mode.
Step 2, press the right button (normal speed), the voltage value is adding up a unit; Press the left button, minus a unit; Due to a unit is less than 0.1V, the minimum voltage display to 0.1V, so you need to continuously press 1-5 times to see the voltmeter change 0.1V, how many times voltmeter change 0.1V by pressing the key, depending on the current display voltage, the higher the voltage, the fewer the number of press.
Step 3, press the right button for more than 2 seconds, release, to exit the output voltage calibration mode. All parameters set to automatically power down to save.
 
(2) Input voltage calibration steps
Step 1, adjust the right button so that“IN”LED lighted, Digital meter shows the value of input voltage; press the right button for more than 2 seconds, release,Digital meter and“IN”LED flashes in synchronization so that you enter the input voltage calibration mode.
Steps 2 and 3, consistent with the output voltage calibration method.
 
(3)Output current calibration steps
Step 1, adjust the right button so that Digital meter shows the value of output Current. Press the right button for more than 2 seconds, release, Digital meter flashes in synchronization so that you enter the output current calibration mode.
Step 2,Connected to the load, ammeter in series, adjust the right and left button to change the display of digital meter, so that is consistent with the ammeter display .
 
Package Included:
1 Pcs 5A CC/CV W USB Voltmeter LED Drive Step down Lithium charger Power Module CASE

 
AC 110-240V DC9V 3A Universal Power Adapter Supply Charger Adaptor Eu Us for LED Light Strips
 

 
Description
100% Brand new 100V - 240V AC to DC charger Adapter
Input : 100V-240V 50/60Hz
Output : DC 9V 3A 
Out put adaptor : 5.5mm x 2.5mm (Compatible: 5.5 * 2.1mm)
Length of the cable: 90CM
the adapters Connector  inside positive  ( )outside  negative (-)
Power Supply with LED indicator
 
Package Included
1 Pcs 9V3A Power Adapter

AC 85-265V to DC 9V 4.5A  AC/DC 50/60Hz Switching Power Supply Module Board
 
description:
 
The power supply is built-in isolated industrial-grade switching power supply, with temperature protection, overcurrent protection and short circuit full protection, AC85 ~ 265V wide voltage input, DC and AC high voltage isolation, 431 precision voltage regulator (DC9V4.5A) output, input and output with EMI filter circuit with indicator light, with mounting holes.
 
Input voltage: AC 85 ~ 265v 50 / 60HZ or DC100v-370v
 
Output Current: Single DC9V4.5A
 
Power: 36W
 
Volume: length X width X height = 10X5.0X2.75 (cm)
 
Mounting hole dimensions: length and width spacing = 8X4 (cm)

 
WJ01 DC12V LED Digital Time Delay Relay Module Programmable Timer Relay Control Switch Timing Trigger Cycle with Case for Indoor
 
Description
1. Display with LCD two columns, Can display parameters directly;
2. Trigger mode: high and low level,switch quantity.meet most of the needs.
3. Power supply: 6~30V.
4. Parameters can be modified via UART.
5. Stop button to provide emergency stop function.
6. 5 minutes without any operation into a low-power state. Any action wake up.
7. OP/CL/LOP params can be modified individually
8. All parameters are automatically saved by power off.
Product Parameters:
1. Trigger signal source: High level(3.0V~24.0V),Low level(0.0V ~0.2V),Switch signal.
2. Maxmum Output load: DC 30V 10A and AC 220V 5A.
3. Static Current: 15mA Operating current: 50mA.
4. Service life: more than 100,000 times; working temperature: -40-85°C; 
5. Optocoupler isolation,Strong anti-interference ability, Industrial grade circuit board, after power set parameters memory forever
 
Package Included
1 Pcs WJ01 DC12V LED Digital Time Delay Relay Module
 

 
 
XH-M542 DC 12-26V 100W TPA3116DA Mono Channel Digital Power Audio Amplifier TPA3116D2 Board
 
Description
Name: TPA3116D2 Digital Audio Amplifier Board
Chip type: TPA3116D2
Input voltage: DC12-26V
Output power: 100W
SNR: 100dB
Channel: Mono
Size: 79*54*16mm
 
Package Included
1 Pcs TPA3116D2 Digital Audio Amplifier Board
 
 

USB 3.0 Dual USB Detector Current Voltage Tester Voltmeter USB Charger Mobile Power Capacity Tester Meter Ammeter for Laptop
Description:
1.The overall maximum power (25V) 8mA, usually operating current 6mA,minimum operating current 2mA (Close-Screen Display Lights)
2.The most perfect power-down storage technology, testing capacity,such as unexpected power outages, when the voltage drops to 2.2V,instantly triggering an internal storage circuit, the use of tantalum capacitors power savings,save the last capacity value, foolproof
3.Resolution: 0.1mAh
4.When input voltage is below 4.5V, or higher than 5.7V, the lights will trigger alarm.Higher than 5.8V, stop charging.
5.Click the button to display: voltage and current, or Power.Long press the button: Turn off the lights, the capacity is cleared.
 
Specifications:
Measure range:3.50-26.99V
Maximum current:4.19A
Capacity: 99999mAh
Model:D3A4
Color:Black
Material:Plastic
Screen Size:24mm
Powered By:USB
Battery included or not:No
Size:50*25*8mm
weight:50g
Package included:
1 Pcs USB Tester

 
Mini A6 GA6 GPRS GSM Kit Wireless Extension Module Board Antenna Tested Worldwide Store For SIM800L

 
Description:
 led Working temperature -30 ° to 80 °;
 l Operating Voltage 5V;
 l Standby average current 3ma less;
 l support the GSM / GPRS four bands, including 850,900,1800,1900MHZ;
 l GPRS Class 10;
 l Sensitivity <-105;
 l support voice calls;
 l support SMS text messaging;
 l Support GPRS data traffic, the maximum data rate, download 85.6Kbps, upload 42.8Kbps;
 l Supports standard GSM07.07,07.05 AT commands and extended commands Ai Thinker;
 l supports two serial ports, a serial port to download an AT command port;
 l AT command supports the standard AT and TCP / IP command interface;
 l support digital audio and analog audio support for HR, FR, EFR, AMR speech coding;
 l support ROHS, FCC, CE, CTA certification;
 l SMT 42PIN package;k
 
Package Included:
1 Pcs Mini A6 GA6 GPRS GSM Kit Wireless Extension Module
 

AC 85-265V To DC 24V 1.5A 36W AC/DC 50/60Hz Switching Power Supply Module Board
 
Description:
 
The power supply is built-in isolated industrial-grade switching power supply, with temperature protection, overcurrent protection and short circuit full protection, AC85 ~ 265V wide voltage input, DC and AC high voltage isolation, 431 precision voltage regulator (DC24V1.5A) output, input and output with EMI filter circuit with indicator light, with mounting holes.
 
Input voltage: AC 85 ~ 265v 50 / 60HZ or DC100v-370v
 
Output Current: Single DC24V1.5A
 
Power: 36W
 
Volume: length X width X height = 10X5.0X2.75 (cm)
 
Mounting hole dimensions: length and width spacing = 8X4 (cm)

 3S 6A Li-ion 12V 18650 BMS PCM battery protection board bms pcm for li-ion lipo battery cell pack
 

 
 
M-10 Transparent Serial Port Bluetooth 4.0 Module With Logic Level Translator
 
 
Description
1.The internal logic level conversion circuit. No external 5V level to 3.3V level
2.The power input port with anti reverse circuit. To avoid accidental power plug in module, the burning issue.
 
Package Included
1 Pcs Bluetooth 4.0 Module

 
Attiny85 Digispark kickstarter Mini USB Development Board Module Tiny85
Description:
The Digispark is an Attiny85 based microcontroller development board similar to the Uno line, only cheaper, smaller, and a bit less powerful. With a whole host of shields to extend its functionality and the ability to use the familiar Uno IDE the Digispark is a great way to jump into electronics, or perfect for when an Uno is too big or too much.
The Digispark is shipped fully assembled except for the two included and easy to solder headers.
Here are the specs:
Support for the Uno IDE 1.0 (OSX/Win/Linux)
Power via USB or External Source - 5v or 7-35v (12v or less recommended, automatic selection)
On-board 500ma 5V Regulator
Built-in USB
6 I/O Pins (2 are used for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are programming via USB)
8k Flash Memory (about 6k after bootloader)
I2C and SPI (vis USI)
PWM on 3 pins (more possible with Software PWM)
ADC on 4 pins
Power LED and Test/Status LED
Package included:
1 Pcs Digispark USB Development Board

LED DC 0-100V 50A Dual Display Voltage Meter Digital LED Voltmeter Ammeter Panel Amp Volt Gauge
Description:
This voltmeter ammeter is 100% brand new and high quality. It adopts 0.28" LED digital display tube, with dual display function and compact plastic shell, specially designed for voltage and current measurement. 
Features: 
Working voltage:DC 4.5-30V 
Size:4.80*2.90*2.20cm 
LED display tube: 0.28" 
LED display color: single color(red), double color(red and blue) 
Measurement accuracy:0.1%  
Measurement range:0V-100V/0A-50A
 
Package included:
1 Pcs voltmeter ammeter panel

LED DC 0-100V 50A Dual Display Voltage Meter Digital LED Voltmeter Ammeter Panel Amp Volt Gauge
Description:
This voltmeter ammeter is 100% brand new and high quality. It adopts 0.28" LED digital display tube, with dual display function and compact plastic shell, specially designed for voltage and current measurement. 
Features: 
Working voltage:DC 4.5-30V 
Size:4.80*2.90*2.20cm 
LED display tube: 0.28" 
LED display color: single color(red), double color(red and blue) 
Measurement accuracy:0.1%  
Measurement range:0V-100V/0A-50A
 
Package included:
1 Pcs voltmeter ammeter panel

New USB KVM Switch Switcher 2 Port VGA SVGA Switch Box USB 2.0 Mouse Keyboard 1920*1440
Description:
1.100% Brand New
2.Weight: 100g
3.Color: Black
4.Size: about 9.5 x 6 x 2.4 cm
5.USB 2.0 PORT
6.2 port KVM switch is compact size design,easy portable.
7.Supports Microsoft Intellimouse,Logitech Net Mouse,etc?
8.Supports DOS,Win3.X,Win95/98/98SE/2000/ME/XP,WinNT,Netware,Unix,Linux.
9.Hot Plug-add or remove connected PCs for maintenance without powering down the KVM switch or PCs.
10.Superior video quality-up to 1920*1440,Bandwidth:200MHz.
11.No Software Required-PC selection via Push Buttons.
12.LED display for monitoring status.
Package included:
1 Pcs USB 2.0 2Port KVM Switch
1 Pcs English User Manual

2.4G NRF24L01 PA LNA High-power wireless module 16*32mm Raspber
Description:
NRF24L01 PA LNA wireless ultra long distance 2.4G module 250K rate,
Open space distance of about 1100 meters, 1M speed, open space distance of about 750 meters, 2M speed, open space distance of 520 meters or so, the maximum power of 20DBM, 10DBM LNA of the maximum power
Up to 2Mbps data rates
Support 6 nodes networking
Supports 125 radio frequency channels
​
Very low power consumption
High sensitivity external antenna interface (side retaining antenna interface)
With PA amplification and LNA low-noise amplification, it is suitable for ultra long distance transmission of data
 
The output power can be set up in software
Typical applications
Remote control
Long distance wireless meter reading system
Long distance wireless monitoring system
Long range wireless data acquisition system
Long range VOIP system
Long distance entrance guard system
Remote cell paging
Long range wireless label
Long distance wireless 232 and wireless 422/485 data communication
 
Package Included:
1 Pcs NRF24L01 PA LNA High-power wireless module

TCS230 TCS3200 Color sensor Color recognition module for uno

Color sensor principle:
 
TCS230 8-pin SOIC surface mount package, on a single chip has 64 photodiodes. These diodes are divided into four types. 16 of the photodiode with a red filter; 16 photodiodes with a green filter; 16 photodiodes with a blue filter; the remaining 16 without any filter, may all the optical information through. The photodiode chip are staggered, it is possible that minimize non-uniformity of the incident radiation, thereby increasing the accuracy of the color recognition; on the other hand, the same color of the photodiode 16 is connected in parallel, uniformly distributed in the diode array, you can eliminate the position error color. Work by two programmable pins to dynamically select the desired filter. Typical output frequency range of the sensor from 2 Hz ~ 500 kHz, users can also select two programmable pins to 100% , 20% or 2% of the output scale factor, or power-off mode. Output scale factor so that the output of the sensor can be adapted to different measurement range and increases its ability to adapt. For example, when using a low-speed frequency counter, you can choose a small scaling value that TCS230 output frequency and counter match.
Summary:
1.imported chips TCS3200 PCB board with gold plating
2.TCS3200 is TCS230 upgrade version, the better
3.Power supply 3-5v
4.anti-light interference
5.white LED, can control the on and off.
6.can detect non-luminous object color
7.PCB dimensions: (L) 33mm * (W) 25mm
 
Shipping list:
1 Pcs As shown color sensor module
 
Simple test procedure is as follows:
#include
 
#define uchar unsigned char
 
#define uint unsigned int
 
Duty cycle // S0, S1 to set the output; sbit S0 = P1 ^ 0
 
sbit S1 = P1 ^ 1;
 
sbit S2 = P1 ^ 3; // S2, S3 is set to consider the pattern of light
 
sbit S3 = P1 ^ 4;
 
sbit OE = P1 ^ 2; // Enable
 
 
 
void RS232_init ()
 
{
 
  TMOD = 0X20; // Timer 1 in mode 1
 
  SCON = 0x50;
 
  PCON = 0X80; //
 
  TH1 = TL1 = 0XFF; // 22.1184M crystal, the baud rate is set to 115200
 
  TR1 = 1;
 
  TI = 0;
 
  RI = 0;
 
 
}
 
void send_char (uchar a) // send data
 
{
 
    SBUF = a;
 
    while (TI == 0);
 
    TI = 0;
 
}
 
uchar get_char () // receiving data
 
{
 
    while (RI == 0);
 
    RI = 0;
 
return SBUF;
 
}
 
 
uint color_display (uchar m)
 
{
 
       uint time, a;
 
       a = m;
 
       TMOD = 0x61; // counter 1, Timer 0 is operating in 16-bit mode
 
       TH0 = TL0 = 0; // start counting from zero, the timing
 
       TH1 = TL1 = 0;
 
       S0 = 1;
 
       S1 = 1;
 
       S2 = m & 0x01;
 
S3 = m & 0x02;
 
       OE = 0;
 
       TR0 = TR1 = 1;
 
       while (TL1 <250);
 
       TR1 = TR0 = 0;
 
       OE = 1;
 
       time = TH0 * 256 TL0;
 
       return (time);
}
 
 
void main ()
 
{uint temp;
 
    RS232_init ();
 
    OE = 1;
 
    while (1)
 
    { temp = color_display (get_char ());
 
        RS232_init ();
 
        send_char (temp / 1000);
 
        send_char (temp% 1000/100);
 
        send_char (temp% 100/10);
 
        send_char (temp% 10);
  }
}
Through the serial port to select the type of color channels, and then due to the different colors corresponding to different time (count value of the same), to determine the different colors.
 

FM Radio Transmitter Module radio station transmitter for module
 
Ever thinking about set up a music radio station yourself? I think it would be great if you could build a music station and share your music with others. Pretty cool, right?
 
This module could modulate your voice on the FM radio wave. And anyone who has a radio device could receive it. We build everything on this module, which makes it very easy to build a tiny radio station. We also reate library for to work with this module. We make everything easy for you.
Description:
1) I2C interface 5V TTL compatible
2)  plug and play
3) Onboard MIC
4) VCC Input: 3.0V ~ 5.0V
 
Package Include:
1 Pcs FM Radio Transmitter Module

 
STC15F2K60S2 Core Board Small System Board 51 Single Chip STC Development Board
 
 
Description:
1, usingSTC15F2K60S2-28I industrial grade chip;
2, a power indicator LED lights;
3, a reset button;
4,Onboard 3.3V regulator chip;
5, reserved external crystal using the socket form: you can easily replace the crystal;
6, reserved RXD, TXD, GND, 5V pin (can be done through the USBTTL module on the core boardPower supply, download program and other operations);
7, using the power switch to facilitate the power operation of the core board;
8, set aside four fixed mounting holes, easy to fix the circuit board!
9, reserved 5V, 3.3V pin input / output interface
Two double row 2.54mm pin headers lead all P0-P4 connectors out
Core board size: 45.6*45.7mm
 
Package Included:
1 Pcs STC15F2K60S2Core Board
 

 
Openlog Serial Data Logger Open Source Data Recorder ATmega328 Support Micro SD for Uno
 
Description:
This product is a data logger that records data on a memory card via the uart universal serial port. This function resembles a black box to record the data sent to the serial device by the master device and save the data in memory on the memory card. This product can be used with cleanflight firmware with the control board, connected to the corresponding serial port, through the host computer software cleanflight configurator settings, can be realized on the UAV's important operating data recorded on the memory card. And flight records are analyzed by Blackbox flight data recorder software.
 
Note: After inserting the memory card for the first time, the memory card will produce the config.txt file, which changes the baud rate parameter of the serial port. This parameter can be modified. Please set the serial port The baud rate is consistent with the baud rate of the recorder.
 
parameter:
Input voltage 3.3V ~ 12V (recommended for 3.3V ~ 5V)
The memory format is FAT32 and supports up to 64GB of memory
UART serial interface
Baud rate adjustable
The default bootloader is pro mini atmega328P 5V 16mhz
Technical Parameters:
1 support to store fat16 / fat32 format tf card, storage capacity up to 32G
2 has a simple command line interface
3 on the computer to change the tf card config file (if the new card, insert the card after the first power, which will automatically create config file), you can change the settings, such as baud rate. You do not need to buy any special tools to change the serial port settings to make use of your needs.
4 three modes: new, add, command
5 baud rate can be set to 300-1000000bps
6 guaranteed to run at least the connection for vcc, gnd, rx
7 two led lights indicate the running status
8 input voltage 3.3V to 12V, preferably 3.3 to 5V.
9 free current 2ma, the maximum recording rate when 6ma.
 
Package included:
1 Pcs Openlog Data Logger

IEZ-USB FX2LP CY7C68013A USB core board development board USB logic analyzer I2C serial and SPI high quality In stock
 
Description:
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 Pcs CY7C68013A core board

RFID 125KHz EM4100 Wireless Card Reader Module ATMEGA8 TTL/Wiegand 26/34
​
Decription:
1. Support Card Type: Read-only ID card (EM4100, IM4001)
2. Support frequency: 125KHz
3. Reader Time: <0.2s
4. Read Range: 3-10cm
5. Output interface: UART / Wiegand 26/34
6. Working voltage: 3.3V-5.5V
7. Working temperature: -55 Celsius ~ 125 Celsius
8. Module Size: 29 * 62mm
Package including:
1 Pcs RFID 125KHz EM4100 Wireless Card Reader Module

New Arrival AC-DC 24V 4A 12V Switching Power Supply Board AC-DC Power Module Dual Output

 
Description:
Power Model:AC-DC 24V 12V
Protection: overvoltage overcurrent circuit protection
AC input: AC85-265V (Global common)
AC frequency: 50HZ/60HZ
Output voltage:  24V 12V
Output Current: DC24V4A 12V500MA
Output Power: 100W
Positioning hole size: 9.8X4.7 (CM)
Overall size: 10.65X5.7 (CM)
Ripple noise: ≤200MV 
 
 
Package included:
1 Pcs AC-DC Power Module
 

PN532 NFC RFID module V3, NFC with Android phone extension of RFID provide Schematic and library
 
 
 
 
 
Description:
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 Pcs PN532 NFC RFID Module
1 Pcs 2.54mm spacing 4pin Cable
1 Pcs Mifare One S50 White Card
1 Pcs 12P bended male pins

TB6560 3A STEPPER Motor DRIVER Board CNC Single Axis Controller Module 10 Files Motor Drives
 
 
Description
This product has been fully tested, and has been applied to the engraving machine, patches and other equipment, quality assurance, ease of use.
 
1) Working voltage DC 10V-35V. DC24V switching power supply is recommended.
2) the use of high-speed optical coupling 6N137, ensure high speed without losing step.
3) Toshiba TB6560AHQ new original chip, there are low-pressure shut-off, overheating parking and over-current protection circuit to ensure optimum performance.
4) The maximum rated output: ± 3A, peak 3.5A.
5) for 42, 57 3A stepper within two-phase / four-phase / four-wire / six-wire stepper motor is not suitable for more than 3A stepper motor.
6) automatic semi-flow function.
7) Subdivision: full step, half step, step 1/8, 1/16-step, up to 16 segments.
8) Volume: Width Length 75 * 50 * high 35 (MM)
9)Weight: 83G
Similar products in features:
1, the current level by adjustable to meet your various application requirements.
2, semi-automatic adjustable flow.
3, using high-speed optical coupling 6N137, ensure high speed without losing step.
4, plate printing setup instructions, can operate without manual.
5, using a fine-toothed thick radiator, good heat dissipation.
 
Package Included
1 Pcs TB6560 Module
 

New Arrival AC-DC 24V 4A 5V Switching Power Supply Board AC-DC Power Module Dual Output

 
Description:
Power Model:AC-DC 24V 5V
Protection: overvoltage overcurrent circuit protection
AC input: AC85-265V (Global common)
AC frequency: 50HZ/60HZ
Output voltage:  24V 12V
Output Current: DC24V4A 5V500MA
Output Power: 100W
Positioning hole size: 9.8X4.7 (CM)
Overall size: 10.65X5.7 (CM)
Ripple noise: ≤200MV 
 
 
Package included:
1 Pcs AC-DC Power Module
 
 

 
42/57/86 TB6600 Wood Router Machine Stepper Motor Driver 32 Segments Upgraded Version 4.0A 42VDC Cnc Milling Kits
 
 
 
Description
This drive is an upgraded version of the TB6600, the breakdown of heightening to 32 segments,
for high segmentation purposes. Applicable stepper motor: 42,57,86 type of 2-phase 4-phase (4-wire 6 wire line 8)
Features:
1, 9V-42V DC power supply;
2, H-bridge bipolar constant-phase flow-driven;
3, the maximum output current of 4.0A eight optional;
4, up to 32 segments of six kinds of sub-modes available;
5, the input signal is high-speed optical isolation;
6, standard common anode single pulse interface;
7, offline hold function;
8, semi-enclosed chassis can accommodate more demanding environment;
9, provide energy semiautomatic current lock function;
10, built-in thermal protection and overcurrent protection.
 
Package Included
1 Pcs TB6600 Stepper Motor Driver

 
1.44" Serial LCD Display 128*128 SPI TFT Color Screen With Adapter 5110 PCB
Description:
Color: Black
Size: 1.44 inch SPI serial bus 
Resolution 128 * 128
Spike NOKIA 5110, perfect upgrade true color.
The onboard LDO, support 5V/3.3V voltage to input , using LED backlight, input 3.3V.
Advantages:
1. 128X128 resolution: square visual area.
2. TFT color screen, the effect is better than other small CSTN screen.
3. Drive IC using ST7735S, stable and reliable, it shows simple adjustment!
4. Compatible 5110 interface.
Package Includes:
1 Pcs 1.44 Inch Black Serial LCD Display Module

 
GY Digispark Kickstarter Miniature Minimal Development Board TINY85 Module Usb
 

Description:
Here are the specs:
The Digispark is an Attiny85 based microcontroller development board similar to the Arduino line, only cheaper, smaller, and a bit less powerful. With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE the Digispark is a great way to jump into electronics, or perfect for when an Arduino is too big or too much.
The Digispark is shipped fully assembled except for the two included and easy to solder headers.
Support for the Arduino IDE 1.0 (OSX/Win/Linux)
Power via USB or External Source - 5v or 7-35v (12v or less recommended, automatic selection)
On-board 500ma 5V Regulator
Built-in USB
6 I/O Pins (2 are used for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are programming via USB)
8k Flash Memory (about 6k after bootloader)
I2C and SPI (vis USI)
PWM on 3 pins (more possible with Software PWM)
ADC on 4 pins
Power LED and Test/Status LED
Size:2x1.7cm(approx)
 
 
Package Included:
1 Pcs Attiny85 Digispark kickstarter Mini USB Development Board Module
 

 
DC 5V-24V XKC Y25 T12V Non Contact Liquid Level Sensor Switch Detector Outer Adhering Type Level Sensor NPN PNP Rs485 Interface
 
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.
Model:XKC-Y25
Output:NPN/V/PNP(Optional)
Input Voltage (InVCC):DC 5-12V 
Current:5mA 
Output Voltage (high level):InVCC
Output Voltage (low level):0V
Output Current:1~100mA 
Response Time:500mS 
Operating Temperature:0~105℃
Induction Thickness (sensitivity):0~13 mm 
Communication:RS485
Humidity:5% ~ 100%
Material:ABS 
Ingress Protection:IP67
 
Package Included
1 Pcs XKC-Y25 Level Sensor
 

PCM2704 USB DAC to S/PDIF Sound Card Decoder Board 3.5mm Output F/PC 2 Channel Analog Output

Description:
Support 16bit 32KHz/44.1KHz/48KHz
Support 2-channel analog output,S/PDIF output
Dynamic range/signal-to-noise ratio: 98DB
THD N=0.006%
USB interface support 1.0 specifications
WIN XP/WIN 7/WIN 2000 free Drive
WIN 98SE need install Drive
​
Specifications:
voltage:5 V (USB interface),
Distortion: THD N: 0.006% (RL > 10 k)
Distortion: THD N: 0.025% (RL = 32 )
Signal-to-noise ratio: 98 dB
Dynamic range: 98 dB
Headphone output power: 12 mW (RL = 32 )
Size:55x50mm
 
Package included:
1 Pcs PCM2704 Decoder Board
 
 

 
 
 
Replace 5110 LCD 1.44" Red Serial 128X128 SPI Color TFT LCD Display Module
 

 
Description:
100% brand new and high quality
1.44-inch screen with SPI serial backplane module, a minimum of only four IO-driven resolution 128 * 128 
Spike 5110, perfect upgrade true color 
Size: 1.44 inch SPI serial bus 
Resolution 128 * 128
 
Package Included:
1 Pcs 1.44" Red Serial 128X128 SPI Color TFT LCD Module
 

GY-63 MS5611-01BA03 Precision MS5611 Atmospheric Pressure Sensor Module Height Sensor Module
Description:
Module Model: GY-63-03 
Size: 19mm * 13mm 
Name: MS5611 module (atmospheric pressure module) 
Built-in 24bit AD converter chip 
High quality Immersion Gold PCB, machine welding process to ensure quality 
Use Chip: MS5611-01BA03 
Power supply :3-5v (internal low dropout regulator) 
Communication: Standard IIC / SPI communication protocol
 
Package Included:
1 Pcs GY-63 Module

 
New Arrival AC-DC 12V 8A 5V Switching Power Supply Board AC-DC Power Module Dual Output

 
Description:
Power Model:AC-DC 12V 5V
Protection: overvoltage overcurrent circuit protection
AC input: AC85-265V (Global common)
AC frequency: 50HZ/60HZ
Output voltage:  12V 5V
Output Current: DC12V8A 5V500MA
Output Power: 100W
Positioning hole size: 9.8X4.7 (CM)
Overall size: 10.65X5.7 (CM)
Ripple noise: ≤200MV 
 
 
Package included:
1 Pcs AC-DC Power Module
 
 

PAM8403 Wireless Stereo Audio Receiver Module For Arduino Digital Amplifier Sound Loud Board Micro USB Bluetooth 4.0 3W 3W
Description
1. Working voltage: DC 5V
2. Output power: 3W 3W
3. Speaker type: 3W*2 4-8ohm
4. Mounting Hole: 3.0mm
Feature:
Mini design, sound loud and clear, strong sense of hierarchy, ultra-small size, simple installation, wide application range, low prices, quality and stability
Package Included
1 Pcs Bluetooth Amplifier Board

 
GY-530 VL53L0X World Smallest Time-o F-Flight (ToF) Laser Ranging Sensor
 

 
Description:
Infrared distance measurement module
Model: GY - VL53L0X
Using the chip: VL53L0X
Power supply: 2.8 to 5 v
Communication: the IIC communication protocol (fully compatible with 3-5 v system)
Module size: 10.5 mm * 13.3 mm
 
Package Included:
1  Pcs GY-530 VL53L0X Module