Please provide a schematic showing all components, their part numbers and/or values and power supplies.
An IRF520 MOSFET is not a logic level device so will not fully turn on with 5V on the gate.
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Please provide a schematic showing all components, their part numbers and/or values and power supplies.
An IRF520 MOSFET is not a logic level device so will not fully turn on with 5V on the gate.