The Arduino code tells us that the valves will ... As the valves use 24V and the motor 12V, standard N-Mosfets and power relays are used for voltage conversion. The remote controller [Gilard ...

Finally, your Arduino toolkit will be incomplete if you ... it’s a good idea to grab a couple of motors and relay modules for ...

All it does is time the activation of the relays that control the gas flow, power, and wire feeder, so [Brett] decided to use an Arduino instead. The welders control circuit runs at 24V ...