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Topic: MKR1000 doesn't work with 3.7V LiPo battery (Read 143 times) previous topic - next topic

jenz

Try to use a MKR 1000 powered by a  3.7V LiPo battery. But it doesn't work.

If I connect 5V via USB, the MKR1000 runs. If I connect the battery additionally, the charing LED turns on and switches from red to green if the battery is fully charged. If I disconnect the USB power (the battery is still connected!) the MKR1000 switches off. Sometimes the power LED is blinking weakly.

How can I use the MKR1000 with battery power? Do I have to change something in the code?

Currently I have no idea  :(  Can somebody please help me ?

ballscrewbob

The LEDs are designed to turn OFF when on battery power to conserve energy.

As a test power up and load up the BLINK sketch but change the flash frequency.
Connect the battery and let it charge fully.

When its charged then disconnect the USB.
The L LED should continue to flash for some time.

There is also a minimum batter size recommended in the specs.
Ensure you batter meets or exceeds that spec.

1100 mH I think
It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

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