I have a Problem so please help me
Yesterday I tried to connect my 8 channel Relay-Module with the GPIO’s/Pins on my Banana Pi M3 but the Relay didnt work, so I
check the GPIO’s/Pins with my multimeter to find out the reason.
Finally I found out that the 5V Pins didnt work (Pin 2 and 4, marked on the picture).
The multimeter shows me 0v.
Can you say me the reason ?
I use the USB-OTG plug as energy source and NOT the DC Power plug - maybe thats the Problem.
Does the 5v Pins only work the the DC-Power Supply or what ? - If so please send me a buy link for a working DC Power Supply.
Sorry for my bad english (I’m from Germany)
If you connect via dc power its work fine. I never try to power banana via otg - thats possible, it can’t working 5v on gpio.
Buy any 5v 2A power supply with connector 4.4 x 1.6 mm
Sorry for my english - I’m from Poland
Yes thats true I tested the Connection from the DC to the Pins and my multimeter say me that there is a connection so the OTG Power Supply is the Problem…
another problem is that I cant find a 5v 2A power supply with connector 4.4 x 1.6 mm in a german Store maybe
someone can send me a buy link for that. (Amazon would be nice)