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Topic: Raspberry pi serial terminal lcd keypad - a smart one (Read 26 times) previous topic - next topic

liudr

Just bouncing a hardware/software idea off your guys. I am thinking about this idea of making an lcd keypad for raspberry pi. It may look like an adafruit lcd keypad but acts as a smart terminal:

https://www.adafruit.com/products/1109

It connects to the raspberry pi serial port pins and has an ATMEGA328P on the keypad. You will have a few predefined functions and each button corresponds to one of them. You can say do shutdown, restart, login (provide credential), start a program, kill a program, copy data file to a flash drive, maybe taking a picture or video etc. The ATMEGA328P will track the command prompt and output and knows when the shutdown/restart/running a program command has completed, and find the process ID using ps | grep and kills the correct process etc.

What do  you think? I'll post this on rpi's forum after this discussion concludes.
Serial LCD keypad panel,phi_prompt user interface library,SDI-12 USB Adapter

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