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Item specifics

Brand Name eletechsup
is_customized Yes
Model Number TB371*1+TB258*1
6 bit LED key Red
is_customized Yes
Operating Temperature -40-80 Degrees Celsius
Dissipation Power 20MW
Supply Voltage 3-12V
Condition New
Type led button
Application MCU Development Board

Product Description

Product Name:Key Button Board LED Module kit for Arduiuo UNO MEGA2560 Pro mini nano due Raspberry Pi Teensy++

Packing list(Does not include Arduiuo UNO): 1 PCS 4 button Key Board; 1 PCS 6 bit RED LED Board;

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Description:

Can be inserted directly into Ardiuno uno mega2560,Ideal for linking up to your Ardiuno UNO Mini Nano Mega2560 etc,or others MCU ( AVR STM32 ARM7 ARM9 ARM10 PIC AT89C51 STC MSP430 FPGA CPLD etc.) key board: 1 4-button Common Cathode key module . 2 " GND K1 K2 K3 K4" 4 PIN OUT 2.54mm 3 Power Supply Voltage:3.3V-12V 4 Size: 12.7MM x 33MM. led board: 1 6 bit Blue Common Cathode LEDS. 2 7 PIN OUT 2.54mm 3 1K ohm Limiting resistor 4 Power Supply Voltage: 3.3-12V; 5 Size: 17.78MM x 11.43MM. aeProduct.getSubject()

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Circuit schematics :

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Ardiuno uno/mega2560 Code //******************************************************//

Ardiuno_4key_6led This example code is in the public domain. */ // Define key pin int K1 = 13; int K2 = 12; int K3 = 11; int K4 = 10; // Define led pin int GND = 6; int D1 = 5; int D2 = 4; int D3 = 3; int D4 = 2; int D5 = 1; int D6 = 0; // variables will change: int buttonState = 0; // variable for reading the pushbutton status // the setup routine runs once when you press reset: void setup() { // initialize the keys pin as an input. pinMode(K1, INPUT); pinMode(K2, INPUT); pinMode(K3, INPUT); pinMode(K4, INPUT); // initialize the leds pin as an output. pinMode(GND, OUTPUT); pinMode(D1, OUTPUT); pinMode(D2, OUTPUT); pinMode(D3, OUTPUT); pinMode(D4, OUTPUT); pinMode(D5, OUTPUT); pinMode(D6, OUTPUT); //Activate key pin internal pull-up resistors digitalWrite(K1, HIGH); digitalWrite(K2, HIGH); digitalWrite(K3, HIGH); digitalWrite(K4, HIGH); //as LED GND digitalWrite(GND, LOW); } // the loop routine runs over and over again forever: void loop() { buttonState = digitalRead(K1); digitalWrite(D1, buttonState); // buttonState = digitalRead(K2); digitalWrite(D2, buttonState); // buttonState = digitalRead(K3); digitalWrite(D3, buttonState); // buttonState = digitalRead(K4); digitalWrite(D4, buttonState); // digitalWrite(D5, HIGH); // turn the LED on (HIGH is the voltage level) digitalWrite(D6, HIGH); // turn the LED on (HIGH is the voltage level) } //******************************************************//