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Remote car Tank drive

Projects made with Blynk

Gunner January 3, 2020, 5:32am 5

daveblynk:

Battery voltage off the analog pin

Blynk Joystick Controlled Tracked Rover with Wemos D1 Mini Pro Projects made with Blynk

Old topic… and that was only for (attempted) simple monitoring of the Wemos power as it was running on battery. But even then was limited as the step up converter (not to mention the internal 5v-3.3v regulator circuit) would keep the voltage indication artificially high until just before shutdown, floating ADC or not. End result, I never really used it anyhow… … and I have long since switched to a voltage divider (basically added a 1.1M resistor in-line between the ADC and the battery+…

Should work for 6v readings as well.

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