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Shield Requires Both 9V and USB Power—Is This Correct?

userHead Schultz.Langley 2025-07-24 10:44:53 201 Views1 Replies

I got te shield working with several types of code but need to have both 9V power and USB cable conected. This can't be right.?

 

 

 

 

 

 

 

 

 

 

 


 

2025-07-25 10:45:29

Please check if your power supply was working correctly.

 userHeadPic Schultz.Langley
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p.name 4 Channel Relay Shield for Arduino UNO DFR0144