I'd recommend looking at Kontron and OnLogic, products. They very much are targeted to industrial applications, but they effectively make exactly what you're de

I'd recommend looking at Kontron and OnLogic, products. They very much are targeted to industrial applications, but they effectively make exactly what you're describing. Low power machines with lots of I/O and expansion capability in a small form factor. We use a couple of their full system solutions for our lab infrastructure, but they also sell boards if that's what you're looking for: https://www.kontron.com/en/products/systems/c136842 https://www.kontron.com/en/products/systems/c136842 https://www.onlogic.com/eu-en/computers/industrial/ https://www.onlogic.com/eu-en/computers/industrial/