Posts Tagged ‘battery monitor’

Battery monitor on a automotive relay form factor

Tuesday, October 30th, 2018

Jesus Echavarria made this battery monitor and wrote a post on his blog detailing its assembly: Here’s one of the design I do last year for a client. He wants to measure the voltage of a car battery and set a couple of alarms when voltage falls below a defined...

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PIC 12F675 battery monitor using a diode/LED and resistor

Tuesday, February 8th, 2011

Here's a circuit by Joe Desbonnet's Random Tech Stuff that's designed to monitor battery voltage. It uses one resistor, one diode (or LED), one microcontroller ADC input and one digital output. A practical application using a PIC 12F675 is presented. This allows you to monitor battery voltage under load, allowing...

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Posted in how-to, measurement, PIC | 2 Comments »

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