I'm looking to hire someone to develop a DC current polarity switch box that will be operated in very remote areas. I'm very new and unfamiliar with Arduino development. But it seems they could control high current automotive relays and have the ability to control them remotely via Lora. I'd prefer someone local to Houston, TX area but I suppose it's not completely necessary.
The task: A bench top DC power supply is used to energize an 8 or 10AWG wire placed on the ground ranging anywhere from 500 to 3,000 feet or possibly more. The power supply produces at least 100V, 30A of energy through the coil of wire. I need a box connected between the power supply and coil of wire. The box would have an off position, forward position, and reverse position. A forward and reverse reading is taken roughly every 10 minutes, but varies greatly. Most of the time this is done with the operator and box in same location. Other times the coil of wire is not near the operator and must be operated and read out remotely. (this is currently done with a designated person physically there with a 2-way radio performing the switching and reporting the readout to operator).
The device: The box should be able to handle 150A and 150V (sometimes more powerful power sources are used). It would need a switch to operate manually or remotely (local operation could be done via usb or an actual manual switch). A shunt with led readout for local use. For remote use, the box and power supply would be running on an inverter generator in a very remote location (in the woods or similar). The relays for polarity switching would likely be 12v automotive relays. I was thinking the Arduino could control these, but also need to be controlled remotely. Possibly via Lora and in this case would also need to report back a fairly constant feed of the current readout. Distances will range from 1-5 miles from the operator likely.
