Mis Primeros pasos en el Hardware
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This Arduino based current, voltage, and power sensor/meter tutorial was created for hacktronics by Steve Spence.
For my off-grid Ham Radio and Solar projects, I needed a way to measure volts, amps, watts, amp hours and watt hours. There's a couple of commercial products that can do this, but not with the flexibility I wanted. I designed a Arduino micro-controller based solution that is very extensible. Right now it monitors the above values of attached gear, and I'm thinking about adding web monitoring and a sd card for data collection. Well, let's get started.
Here is the circuit for sensing the battery voltage:
Mis Primeros pasos en el Hardware