Min MCU

[StefanUlbrich]

Thanks for the amazing project. I found a board with a ATmega 32U4 which unfortunately only runs at 8MHz. Will this be enough to run a color sensor? Thanks

https://shop.myhobby-cnc.de/bauteile/elektronische-bauteile/aktive/39/arduino-pro-micro

[ysard]

Hi, yes, I think this module will be more than capable of executing the code. The computing power of a microcontroller cannot really be evaluated in the same way as conventional CPUs. Moreover, in this case, you only have a serial and I2C interface to manage. Each has a dedicated hardware module. What is important is the 3.3V voltage. Note that my 16MHz 5V modules still operate at 3.3V.

However, if I may say so, at €13 per module, you are paying five times more than the maximum expected price. And about 15 times more than the manufacturing cost in China.