Simple LCD Display Test with counting external interrupt events

This simple LCD Display Test uses an Atmel MCU to drive the Display and count the number of external interrupts generated by a switch. In the Display is shown a welcome message :D and afterwards a description of which event occurs (at the time only the external interrupt event) and the events’ count. In the firmware is set 20 as the maximum number of external interrupts, above 20 is displayed a warning message.

- The MCU used is ATmega8535 (datasheet link:

- The LCD Display controller is KS0070B (the logic is compatibile with Hitachi HD44780 controller)

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Post time: Jun-26-2017
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