Arduino Battery Gauge – Input Voltage Measurement Board

Here’s a short little post to show something I made a few years ago.  It’s a simple, tiny board with a couple of resistors that is used to measure the input voltage.  It uses a simple voltage divider to reduce the voltage from the raw input pin and allow the conveniently close analog pin to read it.

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Simple LiPo Battery Charger with the MCP73831

The little board was built to charge a single lipo battery using the MCP73831 from Microchip.  I plan to use it along with several other boards featured on this blog in a larger project, but I like to break things up and make sure they’re working individually before making them work together.   Continue reading “Simple LiPo Battery Charger with the MCP73831”