The basic setup shows how to form one voltage network using the ESP32 S3 microcontroller & the 1k ohm impedance. By positioning two resistors on order, one can lower the voltage amount for a reading appropriate http://theengineerstore.in/products/12v-mini-spot-welding-machine-automatic-control-10awg-multiwire-portable-transistor-18650-lithium-battery-spot-welder