First prototype of new I/O system arrived. 0-10V analog outputs, 12 bits, 2kB eeprom, M.2 socket and 24x42mm (mistake, should be 22mm, IIUIC).
6 other I/O boards designed, 1 carrier/base board (with STM32+LoraWAN CPU board) prototype in the mail, and one carrier/base board (with Raspberry Pi CM 4) being designed.