Home > Arduino & SCM Supplies > DIY
DIY Mega 2560 R3 + Keypad Shield 1602 LCD Board for Arduino - Blue
Arduino Mega2560 is a compatible development board for Arduino ATmega2560 features are as follows: 54 groups digital I / O input / output terminal (14 group can do PWM output); 16 sets of analog input terminal; Group 4 UART (hardware serial ports); 16 MHz crystal oscillator; With the bootloader£¬ download the program directly via USB; Without having to go through other external writer; Supply part of the optional USB power£¬ or as an external power; Using the AC-to-DC adapter and battery; The power supply will automatically switch; The limited voltage is 6~12V£¬ if the voltage is lower than 6V£¬ the I/O port cannot supply 5V voltage; If the voltage is over 12V£¬ the voltage stabilizer may take the overheat protection£¬ and even damage the Arduino MEGA; So please use 6V~12V power source£¬ 7.5V or 9V is recommend; Circuit improvements are based entirely on the Arduino official design. 1602 LCD Keypad Shield input / output expansion board using 2 lines of 16 characters LCD£¬ having a contrast adjustment and backlight lamp£¬ using 1 simulated export completed 5 key input£¬ a 1 reset button£¬ does not use the IO export are extended out the spare£¬ make full use of IO export; Take up a digital port: PIN4-DB4£¬ PIN5-DB5£¬ PIN6-DB6£¬ PIN7-DB7£¬ PIN8-RS£¬ PIN9-E£¬ PIN10- backlight control£¬ Simulation of A0 key port Microcontroller: ATmega2560; Operating Voltage: 5V; Input Voltage: (recommended): 7~12V; Input Voltage (limits): 6~20V; Digital I/O Pins: 54 (of which 14 provide PWM output); Analog Input Pins: 16; DC Current per I/O Pin: 40mA; DC Current for 3.3V Pin: 50mA; Flash Memory: 256KB of which 4KB used by bootloader; SRAM: 8KB; EEPROM: 4KB; Clock Speed: 16MHz; LCD Keypad Shield input / output expansion board using 2 lines of 16 characters LCD£¬ having a contrast adjustment and backlight lamp£¬ using 1 simulated export completed 5 key input£¬ a 1 reset button£¬ does not use the IO export are extended out the spare£¬ make full use of IO export; Take up a digital port: PIN4-DB4£¬ PIN5-DB5£¬ PIN6-DB6£¬ PIN7-DB7£¬ PIN8-RS£¬ PIN9-E£¬ PIN10- backlight control£¬ Simulation of A0 key port.