Using too much power?

Other Hardware General Electronics
1

Hi

I've been using Arduino for two months now, but have never had this problem before.

I have an ultrasonic sensor and a Bluetooth module on my breadboard. The Bluetooth module (HC-06) was connected to the 5V power supply and the ultrasonic sensor to the 3.3V slot on the Arduino UNO.

However, everytime I try to load my program onto the board, it fails. The IDE I am using keeps saying the device is unresponsive.

The interesting part to this is that everything works fine when I disconnect both the modules.

Could someone please tell me what I might be able to do to fix this? I've checked my wiring and everything and all of that seems to be fine.

Is there a way I could connect an external power supply maybe?

2

Is the bluetooth module connected to pins 0 and 1?

If so, that's the problem - you can't have things connected to pins 0 and 1 while uploading a sketch, as those two pins are the same ones used for serial communication (that's how the sketch is uploaded).

Don't those ultrasonic sensors need 5v, not 3.3? (but this isn't your problem)

Don't those bluetooth modules only want 3.3?

3

Cross-post. Thread locked.
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