Hi, I’m using a DUAL DIGITAL DISPLAY DC VOLTMETER & AMMETER 0-100V 0-10A on an old ATX power supply to display the volts 3, 5 and 12V dc (via a rotary switch) and current (via the power supply common(assuming), not ideal as it’ll show total current if more then one voltage level is use.
While I’ve watched a few Youtube tutorials and read the products docs on wiring , i’m unsure if i’m connecting it correctly.
red (thin) to +5v
black (thin) to common of power supply or insulated as the black (thick) is the common??
Yellow (thick) to rotary switch common and +3, +5 and +12 on individual positions
Red & Black (thick) in series with load and power supply common