Hello, I am running a camera that requires 5V 80-100mA. I can use the 5V output of arduino, no problem. I tried running from a digital pin(which I believe provides ~40mA), this does not work. So I tied 3 together to get my mA requirement. I rather not use all of these pins just to provide power to …

Arduino 5V output - Switch a device on/off with relay

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