I designed this pedal ammeter to test how much current a pedal draws to help with buying pedalboard power supplies.
It has a barrel connector on each, a 5-digit display to measure current (0.0000A-3.0000A), and a switch to turn on and off the display.
The wiring is very simple with the measurement wires of the ammeter being in line (series) with the positive pedal power wire and the switch being in line with the positive display power wire.
Components I used to build it:
Barrel Connector x2: https://www.mcmaster.com/catalog/129/1174/8320N61
Ammeter: https://www.ebay.com/itm/204119635680
Size 4 x 1-3/8" screws for plastic: https://www.mcmaster.com/products/screws/fastener-head-type~rounded/rounded-head-style~pan/steel-phillips-rounded--thread-forming-screws-for-plastic/screw-size~no-4/
I used a switch that I already had.
It will require a 9V Battery
Pedal_Ammeter_Bottom_V1.1.stl | 212.8KB | |
Pedal_Ammeter_Top_V1.1.stl | 256.1KB | |
Pedal_Ammeter_v1.step | 111.4KB |