There are few parts required for LCD88:
- LCD display
- Power source
- Sticks and switches (from old tramsmitter)
My first version of LCD88 have processor, lcd and power source on one custom pcb board, but I’ll focus on ready modules.
- Project uses Atmega88 (soon will be discontinued), Atmega168 or Atmega328 AVR processor.
- Code supports frequency up to 16MHz (sorry, full 20MHz is not supported right now)
- Supply voltage: 3-5V, it depnds on you.
- Processor should have crystal oscillator
- All pins should be availabe, if you use cpu in DIP packaging, keep in mind that you have only 6 analog inputs instead of 8
Basically, typical Arduino Pro Mini with Atmega328 at 16MHz is best choice for that.
- Siemens S65 L2F50
- Siemens S65 LS020
- HY-1.8 SPI (blue)
- 1.8TFT SPI (red)
- Arduino GLCD
- resolution: 160×128
- chipset: ST7735
- power supply: 5.0V
- logic level: 5.0V
- backlit: 5.0V
- more here
Connecting processor and display
This is only part you should do yourself.
- 6x tact switch
- 6x 1N4148 diode
- 3x resitor 2.2k (smd 0805 if you want to use my pcb design)
- 4 pins header
Eagle files could be found at https://github.com/majekw/lcd88/tree/master/pcb