Hello guys, today I'll show you how to make a simple voltmeter/ammeter, so you can easily measure the voltage, current or power consumption of any charger or device, that uses the common 5.5mm connectors.
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Schematic: https://i.imgur.com/gsLFItS.jpg
Schematic with 4 digits volt/ammeter: https://i.imgur.com/W1CaWJ0.jpg
Components list:
The 3 digits volt/ammeter is not available anymore,
new 4 digits volt/ammeter: https://s.click.aliexpress.com/e/_c3ouTWCB
5V 0.5A boost converter: https://s.click.aliexpress.com/e/_DmOmerx
5.5*2.1mm male (5A, 20AWG): https://s.click.aliexpress.com/e/_olnpzcZ
5.5*2.1mm female connector: https://s.click.aliexpress.com/e/_DCeWJBx
TP4056 charging module: https://s.click.aliexpress.com/e/_c3BSjJ2j
Plastic box 70x45x30mm (slightly bigger): https://s.click.aliexpress.com/e/_DCh3Tnp
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#diyprojects #electronics #voltmeter
