I was powering a GPS Sensor from the 3v3 pin of a raspberry pi and my reading for my GPS sensor had some strange symbols in the mix, but when i switched to the 3v3 on the arduino, my reading came back to normal. This wasted several hours of my time.
Any idea why i would get weird readings when using a different power source?? (even though it is the same voltage)
Note: Both the raspberry pi and the arduino are getting their power form the USB that is connected to my PC.