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Topic: Power problems connecting external device to Arduino UNO R3 (Read 2 times) previous topic - next topic

aluxner

And the Bluetooth Module? Can I have multiple wires from the 5V pin?  I don't think the 3.3 V pin is enough to power the Bluetooth module.

thanks,
andrew

CrossRoads

Check the bluetooth datasheet- it may well be a 3.3V only part, and 5V would damage it.
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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