I want to design a dev board for my experiments and testing.
I'm thinking on putting all the displays I have which are:
- OLED SSD1306
- GLCD 128x64
- 4" tft
- 3.5" tft
- 2.8" tft
Then adding multiple interfaces for serial communication; like, SPI, I2C and UART for sensors and modules. And duplicating a certain communication protocol 2-3 times. So 2x SPI headers, 3x I2C headers and 1x UART headers.
I've done some work on easyada:
One issue I can think of now, is that I have to set a separate SPI pin for each module. I'm thinking of using PCF8574T which would give me 8 CS pins.
What you think ? Any recommendations ?