Did you ever want to find out the capacity of a battery? Aspencore Network News & Analysis News the global electronics community can trust. The trusted news source for power-conscious design engineers ...

Measuring Battery Capacity With an Arduino Denis Hennessy recently encountered a problem we've all faced: he needed some AAs for a battery-eating gizmo, and he was overwhelmed by the choices ...

It only applies to certain microcontrollers, but he provides example Arduino code showing how handy this can be for battery-powered projects. The usual way to measure VCC is simple, but has ...

Now I would like to measure the battery power level and send a MQTT message to log this. Because I would like to know when the battery is empty and send a message to change the battery. Another use ...

Once it is fully charged (above 13V), LM338 supplies about 13.3V to the battery and maintains the charge at this level. This is called float charging. ... A PCB layout of the Arduino-controlled 12V ...

If the battery is not new and part of its energy has been consumed, we will light a yellow LED. Finally, if the battery is dead or does not supply enough voltage, we will light a red LED. We must be ...