Hi, Im having troubles with my Arduino project. I use an Arduino Mega 2560 for powering a relay board. With the digital output set to HIGH, the Arduino delivers 4.9 V, as normal. With the relay board connected, only 1.08V can be measured. This is always exactly the same value. I decided to make t…

Voltage too low for relays

paulpaulson August 13, 2021, 6:24am 2

Hello
Post your sketch to see how we can help.

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