I recently bought a 3.3/5v power supply like this. I'm powering it with a fresh 9 volt battery and 9 volt to barrel connector cable. Right now, it's on 3.3 volt mode, and I have no idea how to switch it to 5 volt mode. All the videos I've seen on how to use it don't describe very well how to change the voltage.

  • 2
    \$\begingroup\$ You move the jumper to the 5 V setting. \$\endgroup\$ – winny Dec 26 '20 at 20:02
  • \$\begingroup\$ @winny Thats that im confused about, what is the other end of the jumper supposed to be connected to? \$\endgroup\$ – fatNinja_Cat Dec 26 '20 at 20:03
  • \$\begingroup\$ Nothing. Look up how jumpers work in general and you’ll get the idea. \$\endgroup\$ – winny Dec 26 '20 at 20:05
  • \$\begingroup\$ I looked it up and realized jumpers diddnt mean jumper wires. \$\endgroup\$ – fatNinja_Cat Dec 26 '20 at 20:16

Here is a technical document about the device.

Basically you just put the 2 jumpers on the 5V position (bridge the leftmost 2 pins on both jumpers).

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