Mini ComputersSynergy Logic SLM-RP4: A $249 Raspberry Pi PLC With OpenPLC
The Synergy Logic SLM-RP4 turns a Raspberry Pi 4 into a $249 UL-listed PLC with OpenPLC preinstalled and up to 128 I/O points on a DIN rail.

Alex Circuit★Oct 22, 2026★4 min read