I am looking for an electrical engineer having good skills in Arduino, who can develop a system consisting of:
--> 3G /4G (so SIM slot)
--> BLE RS485 input (for the card reader)
--> Output: 6 outputs BUT should be possible to extend to 20 outputs we can control individually
Engineer must have good skills in RFID, MQQT and BLE.
Further we will discuss this project in private chat.