arduino M381 Keypad Shield 1602 LCD expansion board UNO R3 MEGA2560 MEGA1280 Display Lights Electronic Hobby Kit

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 0 key port Module debugging: The LCD Keypad Shield inserted into the Arduino controller, and then compile the following a test program and then downloaded to the Arduino, first LCD Keypad Shield, the first observation of LCD have no character, if not display characters that may be contrast is not correct, you can use a word screwdriver regulates RP1 (clockwise), transferred to appear clearly characters can be.