Kereskedelmi, irodai és ipari

Description
This is AC 110V / 220V to DC 5V power supply adapter.
It is particularly suitable for Raspberry Pi power, wireless router, breadboard power supply and other projects.
And it is compatible for Arduino.
The usb cable is especially designed for Raspberry Pi /  for Android Tablet / cell phone / mini PC and so on.
With the help of the switch,you don't have to unplug the cable when you don't need to supply power for the device so as to protect the micro USB connector of it.
- Input Voltage: AC 110〜240V 50/60Hz
- Input interface:  US plug
- Output Voltage: DC 5V
- Output Current: 2.1A(Max)
- Continuous current: 1.7A(MAX)
- Cable length: 150cm
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Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x Module
               
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Description
The module is a high-quality 2 line 20 character LCD module with I2C interface and it is a basic character LCD screen for lots of applications.
It is compatible for Arduino.
And it can be used to display real time clock, temperature and humidity. Its backlight can help you to read the screen clearly in the dark environment.
Features:
- Library: LiquidCrystal_I2C
- I2C Address: 0x20 or 0x38
- Resolution: 100*32
- Backlight color: Yellow-Green
- Char color: Black
- Contrast Adjust: Potentiometer
- Display Size: 3.2 inch
- Working voltage: 4.5~5.5V DC
- Working current: 80mA
- Applications: MP3 players, thermometers, gauges, DIY projects, etc.
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1 * Module
               
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Description
The DIP transistor pack contains 17 kinds of commonly used transistors, each 10PCS. Each kind of transistors are individually packaged, easy to use, and great for experiments and testing.
17 kinds of transistor are as follows:
S9012

S9013

S9014

S9015

S9018
A1015

C1815

A42

A92

2N5401
2N5551

A733

C945

S8050

S8550
2N3906

2N3904



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1 x Transistor pack
               
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Description
Input voltage: 4.5V~28V;
Output voltage: 0.8V~20V adjustable;
Output current: 3A (max);
Efficiency Max. 96% ;
Output ripple: < 30mV;
Dimension: 22 x 17 x 4mm
Application areas:
DIY mobile power , monitor power supply , power buggies , camera power supply , automotive power , communications equipment supply ,there are a variety of size and weight for demanding applications ( such as aviation model, etc. ) .
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Part List (Schematics and program can be sent via e-mail,Please contact us)
2 x  MP1584 Buck module
               
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Description
This is a mini DC-DC step-down power module based on MP1584 and it output fixed 3.3V. It is small size, light weight, especially for model airplane, smart car, DIY and other items.
 Features:
- Module type: Non-isolated step-down module (buck);
- Pins package: Both SMD and 2.54mm pin headers are available;
- Input voltage: 4.1-26VDC
- Output voltage: 3.3VDC±2%
- No load current: small, 0.2mA;
- Output Current: 3A(MAX)
- Continuous current: 1A(MAX)
- Conversion efficiency: 92% (MAX)
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1 x Module
               
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Description
This is a type of low energy data transmission Bluetooth-compatible module. Combining the advantages of compact size, extra low power consumption, strong anti-interference and long communication distance, it is very suitable for short range wireless communication in Things of Internet.
The module integrates PCB antenna on board. It can be used to communicate with other Bluetooth-compatible devices such as for Android system.  Through AT commands, the user can modify the baud rate, master-slave role, device name, pass word and other parameters.
At the end of the AT command line should be the carriage and return characters. AT commands can take effect only when the module is not connected with other device.The module enters data transparent mode once it is connected.
Features:
- protocol: Specification V2.1 EDR.
- Operating Frequency: 2.4GHz ISM band.
- Transfer rate: 6Kbps.
- Power consumption: Standby current is 400uA~1.5mA, transmission current 20mA (MAX).
- Function: Master and slave in one.You can modify the role by AT command.  
- Operating voltage: 3.2~5.5V (On-board 3.3V LDO Regulator).
- Interface logic voltage: 3.3V / 5V compatible(On-board level shift circuit).
- Logic Interface Type: UART TTL serial port.
- Serial port baud rate: 9600 (default), can be modified to other values by AT command.
- UART communication format: 8N1 (default).
- Applications: Bluetooth-compatible control smart car, wireless data transmission, wireless keyboard and mouse, smart home.
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1 x module
 
               
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Description
This is a mini DC-DC step-down power module based on MP1584 and it output fixed 12V. It is small size, light weight, especially for model airplane, smart car DIY and other items.
 Features:
- Module type: Non-isolated step-down module (buck);
- Pins package: Both SMD and 2.54mm pin headers are available;
- Input voltage: 13.3-26V DC
- Output voltage: 12V DC±2%
- No load current: small, 0.2mA;
- Output Current: 3A (MAX)
- Continuous current: 1A (MAX)
- Conversion efficiency: 92% (MAX)
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Part List ( Schematics and program can be sent via e-mail,Please contact us)
1 x Module
Download Link : https://drive.google.com/folderview?id=0B6uNNXJ2z4CxV3VJeWJGbDBVU2c&usp=sharing
               
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Description
This is an OLED Display Module,monochrome 128x64 dot matrix display module with I2C Interface.
Comparing to LCD, OLED screens are way more competitive, which has a number of advantages such as high brightness, self-emission, high contrast ratio, wide viewing angle, wide temperature range, and low power consumption.
It is compatible for Arduino.
It is easy to use with the help of the U8glib library for it.
Interface:  I2C interface
Resolution: 128*64
Angle of view: >160 degree
Display color: Blue
Display dimension: 1.3inch
Driver IC: SH1106
Working voltage: 3.3V~5VDC
Working current: 25mA (Max)
Application: smart watch, MP3, thermometer, instruments, DIY projects, etc..
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1 x 1.3 inch OLED Display Module    
               
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Description
This is a 2x14P narrow body ZIP  socket adapter board for IC / components / module quick test projects.
Onboard curved pin header with 2.54mm pitch, you can use dopont cable to connect it easily and quickly to reduce test cost.
We can use it to test:
Chip: compatible for ATmega328P-PU,L293D, or other IC with DIP package.
Component: Buzzer, LED, LED tube, DIP switch，etc.
Module: 0.96inch OLED module, TFT LCD breakout module, 8bit led bar module, etc.
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Part List
1 x  module
               
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Description
The adapter board can be soldered with LCD screen with fewer than 40 LCD pins and transferred to 2x20P 2.54mm pitch pins.
Each pad is marked with a pin number and it is convenient to test TFT LCD screen sample and to make TFT projects.
Onboard four kind of pad pitch (0.7 / 0.8 / 1.0 / 1.2mm) to meet the needs of most mainstream LCD screen.
Features:
- Applicable number of LCD pins: 40P (max)
- Applicable LCD screen pin pitch: 0.7mm, 0.8mm, 1.0mm, 1.2mm
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Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x Module
https://drive.google.com/drive/folders/0B6uNNXJ2z4CxYXN0Y3RlRWtrRDQ?usp=sharing
               
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Description
These are DC gear motors with cables and the torque is large, the current is low and they are suitable for battery applications. The connection point between the motor and cable is marked with the hot melt adhesive to defense cable broken.
- Operating voltage: 3V-6V DC
- No-load speed: 125RPM @ 3V, 208RPM @ 5V
- No-load Current: 150mA @ 3V, 175mA @ 5V
- Reduction ratio: 1:48
- Torque: 0.8kg.cm (max)
- Cable length: 20cm
- Great for DIY and smart car projects
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2 x 3V-6V DC Gear Motor
               
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Description
The colored ring resistor pack contains 30 kinds of common resistance of the resistor, each 20PCS. The resistance are written on each row of resistors, and it is easy to use.
30 kinds of resistance as follows:
10

22

47

100

150
200

220

270

330

470
510

680

1K

2K

2.2K
3.3K

4.7K

5.1K

6.8K

10K
20K

47K

51K

68K

100K
220K

300K

470K

680K

1M
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Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x 1/4W Colored Ring Resistor Pack
               
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Features
- Frequency: 310-320MHz
- S.W.R.≤2.0
- Antenna Gain:2.0dBi
- Output Impedance: 50 Ohm
- Polarization Type:Vertical or horizontal
- Material: Phosphor copper
- Spring outer diameter: Wire diameter is 0.6mm, and the outer diameter of the spring circle is 5.0mm.
- Spring length: Total length 36mm.
- Connector Type: Soldered directly to use .
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10 x 315MHz Spring Antennas
               
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Description
The 20A Range module is current measuring sensor module based on ACS712. According to the principle of the hall, the current is converted into an analog voltage output that is instantaneous value.
The MCU that contains AD converter can read voltage and calculate the current measured. And it is suitable for 5V micro controller system.
It can detect AC or DC current, and range is /- 20A. It is widely used in over-current detection, current monitoring and other occasions.
Features
- Working voltage VCC: 4.5 - 5.5VDC;
- Standard electronic building blocks interface;
- Measuring range: /- 20A;
- Sensitivity: 100mV / A (typical);
- Measurement error: /- 2%
- Measuring interface: high quality and high current tolerance for easy wiring and safety measuring.
- When the Measured current is zero, the output voltage is half of  the supply voltage (VCC / 2);
- The measured current interface is a double-sided PCB wiring and it adds a large number of cooling holes, and an additional layer of tin is soldered to the bottom of the PCB so as to enhance the current tolerance and to measure continuous 5A current.
- Note: When it is working, please avoid impact of the surrounding strong magnetic field. Normally you need to do zeroing operation before measuring.
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Part List (Schematics and program can be sent, Please contact us)
1 x ACS712 Current Sensor Module (20A) 
               
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Description
It is a dust sensor by optical sensing system. An infrared emitting diode (IRED) and an phototran-
sistor are diagonally arranged into this device. It detects the reflected light of dust in air.
Especially, it is effective to detect very fine particle like the cigarette smoke.
In addition it can distinguish smoke from house dust by pulse pattern of output voltage.
Features:
- Working voltage: 4.8-5.5VDC
- Operating current: <= 20 mA
- Output mode: analog output
- Application: Air purifier, Air conditioner, Air monitor
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1 x module
               
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Description
This is the SD card shield. It provides a storage space for Arduino.
Users can read/write SD card via the built-in SD library. It supports SD, SDHC and Micro SD cards. It will only occupy the SPI port of your Board. You can stack on other shields that work with the unused pins. 
Features
Stand SD card SDHC card and TF card compatible
UART Grove & I2C connection compatible
Fully supported SD Library
Minimal number of SPI port
Truly stackable
Specificaton
Item

Min

Typical values

Max

Unit
Voltage

4.5

5

5.5

V
Current

—

80

—

mA
Interface Level

3.3 or 5

V
Supported Card Type

SD Card (≤ 32G)
SDHC cards (≤ 32G)
Micro SD card (≤ 2G)
Mirco SDHC card (≤ 32G)

—
Dimension

69X54X23

mm
Net Weight

22

g
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1 x Shield
               
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Description
This kit includes a prototype shield, a tiny breadboard, 4 kinds of resistors and three kinds of LED. Using these resistors and LED, you can make some basic projects.
- A IC pattern for adding DIP ICs up to 20 pins
- A surface-mount chip area for up to 14 SOIC size parts
- Compatible with tiny breadboards
- Power rails down the middle and sides
- Easy to make you own expansion shield compatible for Arduino
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Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x Prototype Shield
1 x Breadboard
25 x Resistor, 220ohm 1% 1/4W
25 x Resistor, 1k 1% 1/4W
25 x Resistor, 4.7k 1% 1/4W
25 x Resistor, 10k 1% 1/4W
5 x 3mm red LED
5 x 3mm green LED
5 x 3mm blue LED
               
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Description
ESP32 is a single chip 2.4 GHz Wi-Fi-compatible and Bluetooth-compatible combo chip designed with TSMC ultra low power 40 nm technology.
It is designed and optimized for the best power performance, RF performance, robustness, versatility, features and reliability, for a wide variety of applications, and different power profiles.
ESP32 is the most integrated solution for Wi-Fi-compatible Bluetooth-compatible applications in the industry with less than 10 external components. ESP32 integrates the antenna switch, RF balun, power amplifier, low noise receive amplifier, filters, and power management modules. As such, the entire solution occupies minimal Printed Circuit Board (PCB) area.
ESP32 is designed for mobile, wearable electronics, and Internet of Things (IoT) applications. It has many features of the state-of-the-art low power chips, including fine resolution clock gating, power modes, and dynamic power scaling.
About the Adapter Board: It is used to convert the IO ports of ESP-32F to 2.54mm pitch pin headers, so it is easy for the beginner to test ESP-07 and learn wifi-compatible and Bluetooth-compatible controlling.
Features:
- Working voltage: 2.8 - 3.6V
- Working current: 120mA
- Frequency: 2400M-2483.5M Hz
- Antenna Type: Built-in PCB antenna is available.  
- Wireless Network Mode: station / softAP / SoftAP station.
- Wireless criteria: 802.11 b/g/n/e/i. 4.2 (BR/EDR/BLE)
- Digital interface: UART/SPI/I2C/I2S/IR/CAN/GPIO/PWM
- Applications: Smart Car, Home automation, Sensor networks, Industrial wireless control
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Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x Module 
               
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Description
This is a 6-digit 7-segment LCD display module and this screen is already widely used in multimeter, electronic scales, electronic clock and ultrasonic distance measurement.
It is suitable 5V mcu, and its backlight can help you to read the screen clearly in the dark environment.
 Features:
- Compatibility: can be directly connected for Arduino.
- Backlight color: Blue
- Display Size: 1.4 inch
- Driver IC: HT1621
- Interface: 3-wire SPI
- Working Voltage: 4.7-5.2VDC
- Working Current: 0.4mA without backlight, and 4mA with backlight
- Applications: Thermometers, multimeter, electronic scales, DIY projects, etc.
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1 x 2.4inch 6-Digit Segment LCD
               
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Description
The module is a high-quality 2 line 16 character LCD module with I2C interface and it is a basic character LCD screen for lots of applications.
It is compatible for Raspberry Pi and it can be used to display real time clock, temperature and humidity. Its backlight can help you to read the screen clearly in the dark environment.
Features:
- Library: LiquidCrystal_I2C
- Compatibility: Compatible for Raspberry Pi, STM32 3.3V system
- I2C Address: 0x20 or 0x38
- Resolution: 80 * 16
- Backlight color: Blue
- Char color: White
- Contrast Adjust: Potentiometer
- Display Size: 2.6 inch
- Working voltage: 3.3VDC
- Working current: 40mA
- Applications: MP3 players, thermometers, gauges, DIY projects, etc.
Note: You need to add 5V to 3.3V level converter circuit for Arduino.
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1 x Module
               
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Description
The module is LCD 1602 display module with I2C interface and it is a basic character LCD screen for lots of applications.
It is compatible for Arduino.
And it can be used to display real time clock, temperature and humidity.
Its backlight can help you to read the screen clearly in the dark environment.
Features:
 Resolution: 80 * 16
Backlight color: Blue Display
Size: 2.6 inch
Power: 4.5~5.5V
Interface level: 5V
Applications: MP3 players, thermometers, gauges, DIY projects, etc.
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Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x module
               
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Description
The following are the few advantages for 2.4G wifi-Compatible development Board that is based on ESP-12E and CH340G. After installing the hardware package for this development board compatible for Arduino.
You can use the IDE to program and design.
Features:
- You can use for IDE directly compatible for Arduino
- It makes you easier and faster to complete the project of Wifi-Compatible remote home appliances
- Wireless Upload Program available
- It is built based on the mature and popular ESP8266 technology. You can take advantage the abundant resources available on the web. 
- It has built-in USB-TTL serial with super reliable industrial strength CH340G for superior stability on all supported platforms.
- Antenna Type: Built-in PCB antenna is available. 
- Wireless Network Mode: station / softAP / SoftAP station.
- Wireless criteria: 802.11 b / g / n.
- @ 2.4 GHz, support for WPA / WPA2 security mode.
- Working voltage: 3.3V
- IO logic level: 3.3V
- Micro USB socket input current: 500mA(MAX)
- ADC pin (A0) input voltage: 0-3.3V
- Flash capacity: 4M Bytes
- Clock frequency: 80MHz or 160MHz
- Applications: Smart Car, Home automation, Sensor networks, Industrial wireless control
About the IO expansion board:
- Lead out all the IO ports of the ESP-12E development board
- Lead out the pins of 5V and 3.3V power supply
- Very convenient to connect with peripheral modules
- On-board 5V / 800mA DC-DC step-down converter circuit
- DC Jack input voltage: 6V-24VDC
- On-board power indicator
- Great for DIY
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Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x ESP-12E board   IO Board
               
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Features
This is an OLED monochrome 128x64 dot matrix display module with I2C Interface. Comparing to LCD, OLED screens are way more competitive, which has a number of advantages such as high brightness, self-emission, high contrast ratio, wide viewing angle, wide temperature range, and low power consumption.
You can solder it onto experiment PCB or your own design PCB easily  with the help of the SMD pins.
Features:
- Can use it directly to display characters, graphics
- Compatibility: Because the logic level is 3.3V 5V compatible, it is compatible for Arduino.
- Interface: I2C
- Logic level: 5V or 3.3V (onboard 3.3V level converter circuit)
- Resolution: 128*64
- Angle of view: >160 degree
- Display color: Yellow and Blue
- Display dimension: 0.96inch
- Driver IC: SSD1306
- Operating voltage: 3.2 – 5.5V
- IO Port Package: Both SMD and PAD are available, and the pin pitch is 2.54mm.
- Application: smart watch, MP3, thermometer, instruments, DIY projects, etc.
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1 x Module
               
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Description
This is a resistive touch screen soldering kit. You need to solder the touchscreen and pin header to the adapter module, and then the board can easily connect with it and know the area you are touching.
You can paste the touch screen to the wall, desktop of desk, it can be a calculator by program control, or and you can control your lamp, USB speakers, fans with relay module, USB LED / Fan driver module.
Features:
- Touch screen type: Resistive touch screen
- Touch screen size: 80 * 47mm, suitable for 3.2 inch 16: 9 TFT LCD
- Operating voltage: 2.5 - 5.5V
- Touch pen: 9cm in length
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Part List (Schematics and program can be sent via e-mail,Please contact us)
 
1 x module kit
 
               
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Description
This module Shield interface is compatible for Arduino.
Use the on-board toggle switch to select the SD card type.
Directly plug in to the OPEN-SMART motherboard, MEGA 2560 Board or other motherboard to extend space of data storage;
Easily finish reading / writing operation via the file system(SD library of IDE);
Widely used in digital phone albums, sensor long time / high frequency adopting system, text reader etc needs large amount of data storage;
Features:
- Standard expansion board interface, compatible for OPEN-SMART ATMEGA328P board, for Mega2560 and or for compatible boards;
- Operating voltage: 4.5V - 5.5V (Onboard 3.3v LDO Regulator)
- Operating current: 200mAh (MAX)
- Interface logic voltage: 3.3V / 5V compatible(Onboard level shift circuit)
- Communication interface: standard SPI, only support SPI mode
- Support card type: SD / SDHC / Micro SD / Micro SDHC, and note that micro SD card should be used with TF to SD card adapter.
- Applications: Storage module, MP3 player memory
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Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x Module
 
               
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Description
This is an OLED monochrome 128x64 dot matrix display module with I2C Interface. Comparing to LCD, OLED screens are way more competitive, which has a number of advantages such as high brightness, self-emission, high contrast ratio, wide viewing angle, wide temperature range, and low power consumption.
Features:
Interface: I2C (3.3V logic level)
Resolution: 128*64
Angle of view: >160 degree
Display color: White
Display dimension: 0.96inch
Driver IC: SSD1306
Power supply: 3.3V~5VDC
Operating temperature: -20~70
Application: smart watch, MP3, thermometer, instruments, DIY projects, etc.
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Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x 0.96 I2C White OLED module
               
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Description
This is a monochrome OLED 128 x 64 dot matrix display. With respect to the LCD display, OLED screens become more competitive, it has many advantages such as high brightness, self-luminous, high contrast, wide viewing angle, wide temperature range and low power consumption.
Features:
Screen Size: 0.96 inch
Interface: 4SPI / 3SPI / I2C, the default setting is 4SPI
Resolution: 128 x 64
Perspective: >160°
Display color:  White  
Working voltage: 3-5.2V DC
Working current: 15mA (Max)
Libraries: Adafruit GFX and Adafruit SSD1306
Applications: Smart Watch, MP3 player, Thermometers, Instruments and meters, DIY projects, etc.
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Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x Module
               
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Description
This is a monochrome OLED 128 x 64 dot matrix display. With respect to the LCD display, OLED screens become more competitive, it has many advantages such as high brightness, self-luminous, high contrast, wide viewing angle, wide temperature range and low power consumption.
Features:
Screen Size: 0.96 inch
Interface: 4SPI / 3SPI / I2C, the default setting is 4SPI
Resolution: 128 x 64
Perspective: >160°
Display color: Blue
Working voltage: 3-5.2V DC
Working current: 15mA (Max)
Libraries: Adafruit GFX and Adafruit SSD1306
Applications: Smart Watch, MP3 player, Thermometers, Instruments and meters, DIY projects, etc.
Photos
Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x Module
 
               
Please Note That (Note: After you buy the product, the documents can be send, Please contact us)

Description
This is an OLED monochrome 128x64 dot matrix display module with I2C Interface. Comparing to LCD, OLED screens are way more competitive, which has a number of advantages such as high brightness, self-emission, high contrast ratio, wide viewing angle, wide temperature range, and low power consumption.
Features:
Interface: I2C (3.3V logic level)
Resolution: 128 x 64
Angle of view: >160 degree
Display color: Blue
Display dimension: 0.96inch
Driver IC: SSD1306
Power supply: 3.3V~5VDC
Operating temperature: -20~70
Application: smart watch, MP3, thermometer, instruments, DIY projects, etc.
Photos
 
Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x 0.96 I2C Blue OLED module
               
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Description
ESP32 is a single chip 2.4 GHz Wi-Fi-compatible and Bluetooth-compatible combo chip designed with TSMC ultra low power 40 nm technology. 
It is designed and optimized for the best power performance, RF performance, robustness, versatility, features and reliability, for a wide variety of applications, and different power profiles.
ESP32 is the most integrated solution for Wi-Fi-compatible Bluetooth-compatible applications in the industry with less than 10 external components. ESP32 integrates the antenna switch, RF balun, power amplifier, low noise receive amplifier, filters, and power management modules.
As such, the entire solution occupies minimal Printed Circuit Board (PCB) area.
ESP32 is designed for mobile, wearable electronics, and Internet of Things (IoT) applications.
It has many features of the state-of-the-art low power chips, including fine resolution clock gating, power modes, and dynamic power scaling.
Photos
 
Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x module
 
               
Please Note That (Note: After you buy the product, the documents can be send, Please contact us)

Description
This is an OLED monochrome 128x64 dot matrix display module with I2C Interface. Comparing to LCD, OLED screens are way more competitive, which has a number of advantages such as high brightness, self-emission, high contrast ratio, wide viewing angle, wide temperature range, and low power consumption.
Features:
 Interface: I2C (3.3V logic level)
Resolution: 128 x 64
Angle of view: >160 degree
Display color: Yellow and blue
Display dimension: 0.96inch
Driver IC: SSD1306
Power supply: 3.3V~5V DC
Operating temperature: -20℃~70℃
Application: smart watch, MP3, thermometer, instruments, DIY projects, etc.
Photos
Part List (Schematics and program can be sent, Please contact us)
1 x Module
 
               
Please Note That (Note: After you buy the product, the documents can be send, Please contact us)

Description
This is a new high-quality 2 line 16 character LCD display shield with I2C interface and it is a basic character LCD screen for lots of applications.
It is compatible for Arduino.
And it can be used to display real time clock, temperature and humidity. Its backlight can help you to read the screen clearly in the dark environment.
There are also two touch keys onboard, and an I2C interface for RTC module, a digital interface, four analog input pins that can be connected to the temperature measurement module(DS18B20), or temperature and humidity module(DHT11 or DHT22), etc.
Features:
- Standard shield interface, perfectly compatible for Arduino.
- Very easy to use with the compatible libary : LiquidCrystal_I2C.
- I2C Address: 0x38.
- Operating voltage: 4.5~5.2V
- Interface logic level: 5V.
- Operating current : 80mA (MAX)
- Backlight color: Yellow-green
- Char color: Black
- Display Size: 2.6 inch
- Applications: Thermometers, Meters, DIY projects, etc.
Photos
 
Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x I2C LCD 1602 Shield
               
Please Note That (Note: After you buy the product, the documents can be send, Please contact us)

Description
About LCD Keypad Shield:
- Compatibility: Compatible for Arduino.
- Display type: 2 line of 16 characters LCD
- Backlight color: Blue
- Char color: White
- Contrast Adjust :  Potentiometer
- Display Size: 2.6 inch
- Power supply: 5V
Usage: MP3 player, Thermometer, Instrument.
Photos
 
Part List (Schematics and program can be sent via e-mail,Please contact us)
1x LCD Kaypad Shield
               
Please Note That (Note: After you buy the product, the documents can be send, Please contact us)

Description
This is ESP8266 ESP-01 WIFI-compatible module, based on ESP-01.The SOC has Integrated TCP/IP protocol stack. It is TTL serial communication interface and its parameters can be set by AT command.
It is widely used in networking, smart home project when it is connected to the Wi-Fi-compatible router.
It can be used for remote monitoring of home appliances, bedroom temperature and humidity, controlling home appliances and smart car by the mobile phone.
The Whole module features:
 - It is compatible for Arduino.
   And Compatible board can directly connect to this module.
- You can debug the module with the USB to TTL module, such as FT232RL, CH340G module.
- Interface logic voltage: 3.3V / 5V compatible(On-board level shift circuit)
- Working voltage: 4.5V ~ 5.5V (On-board 3.3V LDO Regulator)
- Working current: 240mA(MAX)
- Serial port baud rate: 115200 (default), can be modified to other values by AT command
- Serial communication format: 8N1
- Antenna Type: Built-in PCB antenna is available.
- Wireless Network Mode: station / softAP / SoftAP station
- Wireless criteria: 802.11 b / g / n
- @ 2.4 GHz, support for WPA / WPA2 security mode
- It is very easy to design projects by AT command
- Applications: Home automation, sensor networks, industrial wireless control, smart car. 
Photos
Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x ESP-01 module
1 x Adapter module
               
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Description
This module is current measuring sensor module based on ACS712. According to the principle of the hall, the current is converted into an analog voltage output that is instantaneous value.
It can detect AC or DC current, and range is /- 30A. It is widely used in over-current detection, current monitoring and other occasions.
The MCU that contains AD converter can read voltage and calculate the current measured. And it is suitable for 5V microcontroller system compatible for Arduino.
Features
- Working voltage VCC: 4.5 - 5.5VDC;
- Standard electronic building blocks interface;
- Measuring range: /- 30A;
- Sensitivity: 66mV / A (typical);
- Measurement error: /- 2%
- Measuring interface: high quality and high current tolerance for easy wiring and safety measuring.
- When the Measured current is zero, the output voltage is half of  the supply voltage (VCC / 2);
- The measured current interface is a double-sided PCB wiring and it adds a large number of cooling holes, and an additional layer of tin is soldered to the bottom of the PCB so as to enhance the current tolerance and to measure continuous 5A current.
- Note: When it is working, please avoid impact of the surrounding strong magnetic field. Normally you need to do zeroing operation before measuring.
Photos
Part List (Schematics and program can be sent , Please contact us)
1 x ACS712 Current Sensor Module (30A) 
               
Please Note That (Note: After you buy the product, the documents can be send, Please contact us)

Description
This is a type of low energy data transmission Bluetooth-compatible module and it follows the specification BLE V4.2.
Combining the advantages of compact size, extra low power consumption, strong anti-interference and long communication distance, it is very suitable for short range wireless communication in Things of Internet. The module integrates PCB antenna on board.
It can be used to communicate with other Bluetooth-compatible devices such as iPhone system.  Through AT commands, the user can modify the baud rate, master-slave role, device name, pass word and other parameters.
Features:
- Support for WeChat transparent transmission (support AirSync protocol)
- Support iBeacon mode
- protocol: Specification V4.2 BLE, compatible with BLE V4.0 V4.1
- Can communicate with CC2541 BLE 4.0
- Communication port: UART(default) or I2C
- IO Port Package: Both SMD and Inline package are available, and the SMD pin pitch is 1.5mm, the 5PIN hole pitch is 2.54mm.
- 4 Programmable digital output pins
- 4 Programmable PWM output pins
- Serial port baud rate: 9600 (default), can be modified to other values by AT command
- Serial communication format: 8N1
- Antenna Type: Built-in PCB antenna is available.   
- Operating Frequency: 2.4GHz ISM band
- Transfer rate: Asynchronous: 8 kbps
- Power consumption: automatic sleep mode, standby current 100uA ~ 1.5mA, transmission 10mA.
- Function: Master and slave in one
- Operating voltage: 1.8-3.3VDC
- Applications: Bluetooth-compatible car handsfree, wireless data transmission, wireless keyboard and mouse, smart home.
Photos
Part List (Schematics and program can be sent via e-mail,Please contact us)
 
1 x module
 
               
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Description
About Ultrasonic Range Sensor module:
- This performance of the ultrasonic sensor distance measuring module is stable, measure the distance accurately. The module is with High precision, blind spots (3cm) super close. This module provides a full set of ranging process.
- Model: HC-SR04;
- Operating voltage: 5V DC;                                       
- Static current: Less than 2mA;
- IO logic voltage: 5V;
- Sensor angle: Not more than 15 degrees;
- Detection distance: 2cm~450cm;
- High precision: Up to 3mm;
- Mode of connection: VCC / trig(T) / echo(R) / GND;
- Adopt IO trigger through supplying at least 10us sequence of high level signal;
- The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal;
- If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving.
About 4-Digit Display module:
- The module is based on a decimal point display module, it displays four digital tube (0.56 inches), only two signal lines can make MCU control four Digit 8-segment LED. Can be used to display decimal, letters and so on;
- Can display the measuring distance by the ultrasonic range module;
- 8 class adjustable brightness;
- Operating voltage: 3.3~5.25V;
- IO logic voltage: 3.3V or 5V.
Photos

Part List (Schematics and program can be sent via e-mail,Please contact us)
1 x Ultrasonic range sensor module
1 x 4-Digit display module
               
Please Note That (Note: After you buy the product, the documents can be send, Please contact us)

Description
This relay module with ESP-01 interface is great for you to make your own smart socket. With the help of ESP-01 firmware and the phone APP, you can control the relay easily. Widely used in smart home project;
Features:
- Yellow socket: for ESP8266 ESP-01 or ESP8285 ESP-1
- Numer of Channel: 1;
- Active level: Low level ;
- Operating voltage: 4.5-5.5V
- Operating Current: 70mA(Each channel)
- Max Switching Voltage: 250VAC / 30VDC
- Max Switching Current: 10A
- Onboard optocoupler isolation
- Onboard LED indicator ;
- Great for DIY Smart socket Projetct.
Photos
 
Part List (Schematics and program can be sent, Please contact us)
1 x Single Relay Module
               
Please Note That (Note: After you buy the product, the documents can be send, Please contact us)

Description
The module is a WAV player module based on 12bit DA converter chip MDP4921. SD card can complete play mono, not more than 22.1K sampling rate and not more than 16-bit way format file with the main control board.
And it is with low SNR, and the noise is little big when it works at a low volume, so we should adjust the volume to a half circle above when we use it. If we use external power amplifier and make it works better.
We can adjust the volume on the amplifier, especially for some places which don't have high requirement for the sound quality like subway, ATM machine, electronic clock and other places with sound prompts.
Features
It can play WAV music and audio;
Power supply 4.75~5.25V;
Interface: 5V or 3.3V;
4 x M2 screws positing holes which is easy for installation
Interface
Control Interface: A total of six pins (GND, VCC, SDI, SCK, CS, LDAC), GND to ground, VCC is the power supply, and the remaining four for the signal input / output pin. 
DA conversion: conversion circuit based MCP4921 12-bit DA. 
Volume control potentiometer: to increase the volume reorientation should dial potentiometer (volume control) to the semi-circle above, in order to hear more clearly. 
Voltage follower: enhance DA converter output signal to drive the load capacity of the headset. 
Speaker Interface: You can pick 8Ω/0.5W small speakers, but the volume is smaller. 
Headphone Jack: Plug in headphones to listen wav audio playback effect. 
Positioning holes: 4 M2 screws positioning hole diameter is 2.2mm, the positioning of the module is easy to install, to achieve inter-module combination.
Photos
Part List ( Schematics and program can be sent via e-mail,Please contact us)
1 x  Wav player module
               
Please Note That (Note: After you buy the product, the documents can be send, Please contact us)

Raspberry
Pi 4,4B Metal Case, Raspberry Pi Armor Case with Dual Cooling Fan
Aluminium Alloy, Radiation and Rust Protection for RPI 4/4B 
Made
of aluminum with good thermal conductivity. Stripe design and cooling
fan allows for more efficient heat dissipation in less time.
Updated manufacturing process with improved CNC aluminium alloy quality. Not easy to rust.
Silence without noise with great cooling performance, it can drop temp up to 30-37 degree.
All ports and slots of the case can match with Raspberry Pi 4 Model B perfectly.
Comes with dual quiet cooling fan, built-in heatsink and thermal tape, which makes your Pi cooler than others.
Used for Raspberry Pi 4 Model B Module.
The
armor shell is made of aluminum alloy with CNC machining manufacturing
technology. Its cool and attractive design are appreciated by the
manufacturers.
Including dual fan and thermal tapes that reduce the temperature for the Raspberry Pi plate.
For dual fan and heat sink:
Design of low energy consumption.
Dual cooling experience, no more overheating problems.
Very quiet cooling fan, you won't be bother by the noise.
The high quality CNC aluminum alloy housing can protect your Pi safe. Radiation protection and difficult to rust.
Open design can make sure that our CNC casing does not affect the Wifi signal.
(Note: The delivery is only for accessories such as shell and fan, excluding the Raspberry Pi motherboard, and the picture shows the effect)

Raspberry
Pi 4,4B Metal Case, Raspberry Pi Armor Case with Dual Cooling Fan
Aluminium Alloy, Radiation and Rust Protection for RPI 4/4B 
Made
of aluminum with good thermal conductivity. Stripe design and cooling
fan allows for more efficient heat dissipation in less time.
Updated manufacturing process with improved CNC aluminium alloy quality. Not easy to rust.
Silence without noise with great cooling performance, it can drop temp up to 30-37 degree.
All ports and slots of the case can match with Raspberry Pi 4 Model B perfectly.
Comes with dual quiet cooling fan, built-in heatsink and thermal tape, which makes your Pi cooler than others.
Used for Raspberry Pi 4 Model B Module.
The
armor shell is made of aluminum alloy with CNC machining manufacturing
technology. Its cool and attractive design are appreciated by the
manufacturers.
Including dual fan and thermal tapes that reduce the temperature for the Raspberry Pi plate.
For dual fan and heat sink:
Design of low energy consumption.
Dual cooling experience, no more overheating problems.
Very quiet cooling fan, you won't be bother by the noise.
The high quality CNC aluminum alloy housing can protect your Pi safe. Radiation protection and difficult to rust.
Open design can make sure that our CNC casing does not affect the Wifi signal.
(Note: The delivery is only for accessories such as shell and fan, excluding the Raspberry Pi motherboard, and the picture shows the effect)

MAX7219 is an integrated serial input/output common-cathode display driver. It connects a microprocessor and an 8-digit 7-segment digital LED display. It can also be connected to a bar graph display or 64 independent LEDs. It includes an on-chip B-type BCD encoder, multiple scan loops, segment word drivers, and an 8*8 static RAM to store each data. There is only one external register used to set the segment current of each LED.
A convenient four-wire serial interface can be connected to all general-purpose microprocessors. Each data can be addressed without rewriting all the displays when updating. MAX7219 also allows users to select encoding or not encoding for each data.
The entire device includes a 150μA low-power shutdown mode, analog, and digital brightness control, a scan limit register allowing users to display 1-8 bits of data, and a detection mode that allows all LEDs to emit light.
Only 3 IO ports can drive 1 dot matrix! No flicker during dot matrix display! Support cascading!
Module parameters:
1. A single module can drive an 8*8 common cathode matrix
2. Module working voltage: 5V
3. Module size: length 26.5 cm X width 3.2 cm X height 1.3 cm
4. With 32 fixing screw holes, the hole diameter is 3mm
5. Module with input and output interface, support multiple module cascade
Wiring instructions:
1. The left side of the module is the input port, and the right side is the output port.
2. When controlling a single module, you only need to connect the input port to the CPU
3. When multiple modules are cascaded, the input terminal of the first module is connected to the CPU, the output terminal is connected to the input terminal of the second module, the output terminal of the second module is connected to the input terminal of the third module, and so on. ..
Take 51 single-chip microcomputers as an example:
VCC → 5V
GND → GND
DIN → P2.2
CS → P2.1
CLK → P2.0
Shipping list:
1. MAX7219 dot matrix module 8 in 1 (finished product, with dot matrix, tested)
2.20CM Dupont Line 5P
3. 5P straight and bent pin headers each

Module model: GY-906-BAA, GY-906-BCC, GY-906-DCI
Use chips separately: MLX90614ESF-BAA, MLX90614ESF-BCC, MLX90614ESF-DCI
Power supply: 3-5v (internal low dropout voltage regulator)
Communication method: standard IIC communication protocol
Provide 51 single chip, arduino single chip program. .
Up for sale is a MELEXIS MLX90614ESF-BAA-000-TU-ND non-contact infrared
thermometer for use with Arduino, or any microcontroller that can
communicate with it through it's I2C interface.  This sensor comes with a
breakout board with all of the components needed for operation and two
types of pins.  They are unsoldered.  Please indicate if you would like
one or the other soldered.  There are two solder jumpers for the I2C
interface that may or may not need to be soldered depending on your
application, but will not for most uses.  
Features and Benefits:
Small size, low cost
 
Mounted on a breakout board with two types of pins
 
10k Pull up resistors for the I2C interface with optional solder jumpers
 
Easy to integrate
 
Factory calibrated in wide temperature range:
 
-40… 125°C for sensor temperature and
 
-70… 380°C for object temperature.
 
High accuracy of 0.5°C over wide temperaturerange (0… 50°C for both Ta and To) High (medical) accuracy calibration
 
Measurement resolution of 0.02°C
 
Single and dual zone versions
 
SMBus compatible digital interface
 
Customizable PWM output for continuousreading
 
Simple adaptation for 8…16V applications
 
Sleep mode for reduced power consumption
 
Different package options for applications andmeasurements versatility
 
Automotive grade
Applications Examples:
High precision non-contact temperaturemeasurements
 
Thermal Comfort sensor for Mobile AirConditioning control system
 
Temperature sensing element for residential,commercial and industrial building airconditioning Windshield defogging
 
Automotive blind angle detection
 
Industrial temperature control of moving parts
 
Temperature control in printers and copiers
 
Home appliances with temperature control
 
Healthcare
Livestock monitoring
 
Movement detection
 
Multiple zone temperature control – up to 127sensors can be read via common 2 wires
 
Thermal relay / alert
 
Body temperature measurement
Data Sheet: http://melexis.com/Assets/IR-sensor-thermometer-MLX90614-Datasheet-5152.aspx

Module model: GY-906-BAA, GY-906-BCC, GY-906-DCI
Use chips separately: MLX90614ESF-BAA, MLX90614ESF-BCC, MLX90614ESF-DCI
Power supply: 3-5v (internal low dropout voltage regulator)
Communication method: standard IIC communication protocol
Provide 51 single chip, arduino single chip program. .
Up for sale is a MELEXIS MLX90614ESF-BAA-000-TU-ND non-contact infrared
thermometer for use with Arduino, or any microcontroller that can
communicate with it through it's I2C interface.  This sensor comes with a
breakout board with all of the components needed for operation and two
types of pins.  They are unsoldered.  Please indicate if you would like
one or the other soldered.  There are two solder jumpers for the I2C
interface that may or may not need to be soldered depending on your
application, but will not for most uses.  
Features and Benefits:
Small size, low cost
 
Mounted on a breakout board with two types of pins
 
10k Pull up resistors for the I2C interface with optional solder jumpers
 
Easy to integrate
 
Factory calibrated in wide temperature range:
 
-40… 125°C for sensor temperature and
 
-70… 380°C for object temperature.
 
High accuracy of 0.5°C over wide temperaturerange (0… 50°C for both Ta and To) High (medical) accuracy calibration
 
Measurement resolution of 0.02°C
 
Single and dual zone versions
 
SMBus compatible digital interface
 
Customizable PWM output for continuousreading
 
Simple adaptation for 8…16V applications
 
Sleep mode for reduced power consumption
 
Different package options for applications andmeasurements versatility
 
Automotive grade
Applications Examples:
High precision non-contact temperaturemeasurements
 
Thermal Comfort sensor for Mobile AirConditioning control system
 
Temperature sensing element for residential,commercial and industrial building airconditioning Windshield defogging
 
Automotive blind angle detection
 
Industrial temperature control of moving parts
 
Temperature control in printers and copiers
 
Home appliances with temperature control
 
Healthcare
Livestock monitoring
 
Movement detection
 
Multiple zone temperature control – up to 127sensors can be read via common 2 wires
 
Thermal relay / alert
 
Body temperature measurement
Data Sheet: http://melexis.com/Assets/IR-sensor-thermometer-MLX90614-Datasheet-5152.aspx

Module model: GY-906-BAA, GY-906-BCC, GY-906-DCI
Use chips separately: MLX90614ESF-BAA, MLX90614ESF-BCC, MLX90614ESF-DCI
Power supply: 3-5v (internal low dropout voltage regulator)
Communication method: standard IIC communication protocol
Provide 51 single chip, arduino single chip program. .
Up for sale is a MELEXIS MLX90614ESF-BAA-000-TU-ND non-contact infrared
thermometer for use with Arduino, or any microcontroller that can
communicate with it through it's I2C interface.  This sensor comes with a
breakout board with all of the components needed for operation and two
types of pins.  They are unsoldered.  Please indicate if you would like
one or the other soldered.  There are two solder jumpers for the I2C
interface that may or may not need to be soldered depending on your
application, but will not for most uses.  
Features and Benefits:
Small size, low cost
 
Mounted on a breakout board with two types of pins
 
10k Pull up resistors for the I2C interface with optional solder jumpers
 
Easy to integrate
 
Factory calibrated in wide temperature range:
 
-40… 125°C for sensor temperature and
 
-70… 380°C for object temperature.
 
High accuracy of 0.5°C over wide temperaturerange (0… 50°C for both Ta and To) High (medical) accuracy calibration
 
Measurement resolution of 0.02°C
 
Single and dual zone versions
 
SMBus compatible digital interface
 
Customizable PWM output for continuousreading
 
Simple adaptation for 8…16V applications
 
Sleep mode for reduced power consumption
 
Different package options for applications andmeasurements versatility
 
Automotive grade
Applications Examples:
High precision non-contact temperaturemeasurements
 
Thermal Comfort sensor for Mobile AirConditioning control system
 
Temperature sensing element for residential,commercial and industrial building airconditioning Windshield defogging
 
Automotive blind angle detection
 
Industrial temperature control of moving parts
 
Temperature control in printers and copiers
 
Home appliances with temperature control
 
Healthcare
Livestock monitoring
 
Movement detection
 
Multiple zone temperature control – up to 127sensors can be read via common 2 wires
 
Thermal relay / alert
 
Body temperature measurement
Data Sheet: http://melexis.com/Assets/IR-sensor-thermometer-MLX90614-Datasheet-5152.aspx

Dual Motor Driver 1A TB6612FNG  Microcontroller
Description:
The TB6612FNG motor driver can control up to two DC motors at a constant current of 1.2A (3.2A peak). Two input signals (IN1 and IN2) can be used to control the motor in one of four function modes - CW, CCW, short-brake, and stop. The two motor outputs (A and B) can be separately controlled, the speed of each motor is controlled via a PWM input signal with a frequency up to 100kHz. The STBY pin should be pulled high to take the motor out of standby mode.
Logic supply voltage (VCC) can be in the range of 2.7-5.5VDC, while the motor supply (VM) is limited to a maximum voltage of 15VDC. The output current is rated up to 1.2A per channel (or up to 3.2A for a short, single pulse).
Board comes with all components installed as shown. Decoupling capacitors are included on both supply lines. All pins of the TB6612FNG are broken out to two 0.1" pitch headers; the pins are arranged such that input pins are on one side and output pins are on the other.
Features:
Power supply voltage: VM=15V max, VCC=2.7-5.5V
Output current: Iout=1.2A(average) / 3.2A (peak)
Standby control to save power
CW/CCW/short brake/stop motor control modes
Built-in thermal shutdown circuit and low voltage detecting circuit
All pins of the TB6612FNG broken out to 0.1" spaced pins
Filtering capacitors on both supply lines
Dimensions: 0.8x0.8"
Package Included:
1 X Dual Motor Driver 1A TB6612FNG

CJMCU-8118 CCS811 HDC1080 Carbon monoxide Temperature and humidity CO VOCs Air quality testing
CJMCU-8118 is a gas sensor system-on-chip (SSoC) temperature and humidity sensor, which uses low-power sensing technology to detect indoor volatile organic compounds (VOCs).
In the schematic diagram of the CCS811 onboard CJMCU8118, we can see that this is not a simple sensor, it also integrates an MCU inside, which makes this sensor have on-board processing capabilities, and can be provided without host intervention. Effective carbon dioxide grade or total volatile organic compound (TVOC) index. At the same time, with the use of separate gas sensors and MCU solutions, CCS811 can save equipment bill of materials costs and up to 60% of the board area.
HDC1080 Low-power, high-precision digital humidity sensor with temperature sensor
DC1080 is a digital humidity sensor with integrated temperature sensor, which can provide excellent measurement accuracy with ultra-low power consumption. HDC1080 supports a wider operating power supply voltage range, and compared to competing solutions, the device can provide low cost and low power consumption advantages for a variety of common applications. The humidity and temperature sensors are factory calibrated.
Relative humidity accuracy is ±2% (typical value)
Temperature accuracy is ±0.2°C (typical value)
Excellent stability under high humidity
14-bit measurement resolution
Sleep mode current is 100nA
Module size: 15mm*21mm

MAX7219 is an integrated serial input/output common-cathode display driver. It connects a microprocessor and an 8-digit 7-segment digital LED display. It can also be connected to a bar graph display or 64 independent LEDs. It includes an on-chip B-type BCD encoder, multiple scan loops, segment word drivers, and an 8*8 static RAM to store each data. There is only one external register used to set the segment current of each LED.
A convenient four-wire serial interface can be connected to all general-purpose microprocessors. Each data can be addressed without rewriting all the displays when updating. MAX7219 also allows users to select encoding or not encoding for each data.
The entire device includes a 150μA low-power shutdown mode, analog, and digital brightness control, a scan limit register allowing users to display 1-8 bits of data, and a detection mode that allows all LEDs to emit light.
Only 3 IO ports can drive 1 dot matrix! No flicker during dot matrix display! Support cascading!
Module parameters:
1. A single module can drive an 8*8 common cathode matrix
2. Module working voltage: 5V
3. Module size: length 26.5 cm X width 6.4 cm X height 1.3 cm
4. With 64 fixing screw holes, the hole diameter is 3mm
5. Module with input and output interface, support multiple module cascade
Wiring instructions:
1. The left side of the module is the input port, and the right side is the output port.
2. When controlling a single module, you only need to connect the input port to the CPU
3. When multiple modules are cascaded, the input terminal of the first module is connected to the CPU, the output terminal is connected to the input terminal of the second module, the output terminal of the second module is connected to the input terminal of the third module, and so on. ..
Take 51 single-chip microcomputers as an example:
VCC → 5V
GND → GND
DIN → P2.2
CS → P2.1
CLK → P2.0
Shipping list:
1.MAX7219 2*8 dot matrix module
2.20CM Dupont Line 5P
3. Pin header 2.54-5P

Description:
The USB Hosemini board makes communication with USB slave devices (such as USB keyboards, mice, U disks, cameras, Android phones, etc.) very easy. In combination with USB Hose Shield, Google ADK can also be implemented. Only 3.3V / 8M / 328 Promini and 3.3V FTDI are supported.
Feature:
Mini USB host allows (only Pro mini version) to realize USB HOST function, can communicate with other USB devices, and supports USB HUB function. Provide the compiled APK installation package and ADK source files compatible with the hardware Mega 1280.
Support Google Android ADK function
Support Android phone types: G1, Nexus One, Nexus S, Motorola Droid X (mobile phone system needs to be upgraded to Android 2.3.4, tablet PCs need to be upgraded to Android 3.1)
Parameter:
Product size: 38mm * 18mm
Net weight: 4.5g
Voltage: DC3.3V power supply
Communication interface: SPI
Included packages:
1 x Mini USB Host Shield 2.0 ADK SLR development tool

Overview:
Raspberry Pi foreign highest precision clock module DS3231
Note for motherboards also use this module.
Modules can adapt itself 3.3V and 5V systems without level conversion, this is a super convenient!
Features:
The 1.-40 ° C to 85 ° C temperature range, timing accuracy kept at ± 5ppm (± 0.432 sec / day)
2 timed to provide continuous battery backup
3 low-power
4. Device package and function compatible with the DS3231
5. Complete clock calendar functions include seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
6 two calendar alarm
7.1Hz and 32.768kHz output
8 Reset button debounced input and output
9-speed (400kHz) I2C serial bus
10. 2.3 V to 5.5 V Supply Voltage
11 ± 3 ° C accuracy digital temperature sensor
12.-40 ° C to 85 ° C operating temperature range
13.16-pin SO (300mil) package
14 by Underwriters Laboratories (UL) certification
Specification:
Weight: 3g
Size: 13.7mm*13.5mm