AVR LCD v0.2
This is the second version of my AVR LCD. It uses a USB-parallel converter (FTDI FT245BM) which is mounted on a DIP-28 board. Since I need more IO pins for a parallel interface I switched to a AVR ATmega16. I also added some more keys.
Using a USB interface has two advantages:
- Power is supplied by USB, so we need only one plug.
- Linux supports hotplugging with USB, so the daemon can be started if the device is plugged in the PC and stopped if the LCD is removed.
Pictures
| Board | LCD |
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Software
- AVR Program: Program for the AVR Mega16 to provide I/O functions for the LCD.
- Linux Program: Program for the PC under Linux to control the LCD, e.g. send/receive data.