Hi.
I just connected my GY521- a breakboard for mpu6050 to my Arduino UNO and coded it.
It works fine with USB as a power source but i can't make it work for an external output (Li-po 3C batt)
Im using a step down board- like this one Amazon.com
i Measured input Voltage its 4.8 for USB and either through the arduino Uno 4.4 or directly from the step down 5.02V
I hooked up my blueetooth module and checked the measures- all is 0 on External power - Still works fine when hooked through USB
Can someone pls help me?
I Already did my reasearch and found a couple peaople with same issue but their topic is not even anserwed.
Thank you!
To which pin on the Uno did you connect the output of the step-down board?
Vin +GND
The requirement for Vin is 7V minimal.
You need to connect 5V to the 5V pin. And next you need to be carefull; you can not have (at the same time) 5V to the 5V pin connected and USB power connected (e.g. for sketch upload) when using an Uno.
it works! would never guess Thank you!
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