Hi. I have been searching long and hard for an LCD or OLED inside a guage, that I could use with my nearly finished datalogger project.
It is actually an OBD code reader / monitor thing, with display etc.
I have just ordered one to have a look at.
It has a 72MHz ARM processor in it, so I am assuming it may well be an STM32 of some kind.
Now… given that I am new to arduino, do you think I should set about trying to interface with the LCD on there… identify the driver chip, and use an SPI connection to my Arduino?
Or should I look to see if I can get STM32duino code onto the STM32 chip in there, and run it as its own device, and communicate over whatever I/O that device has? (UART, CAN) between itself and my Arduino?
What route would you go down? I want to display readings on there, but also a menu interface as well, for things like format sd card, set auto-logging on power-on, etc.