This is such a cute little device and I was really hoping it would work. Unpacked and switched on. The voltage started above 5V, about 5.3. Adjusted it as much as possible but could only go to 5.3. The longer it was connected to my meter, the higher the voltage rose. Before I turned it off and unplugged my meter, it went back to 5.8V DC. Unfortunately, the board I'm trying to power has a maximum voltage of 5.5V, so this power supply won't work. It would be nice if it even arrived at 5 volts and stayed somewhere near that so you can adjust it down as the voltage increases.
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