Hi everyone, ive been having this issue for a while. What I am trying to do is control a pump with a 12v relay with a 12v power supply. But when i turn it on the relay just does random actions not specified in the code.
What I want to know is that because its a 12v relay and the digital pins of arduino only output 5v do I need a step up boost converter for the IN pin of the relay. (The dc+ and COM are both wired to 12v).
Any help with this would be great because I am very confused.
Thanks in advance.