SparkFun Barrel Jack Power Switch - M-F (3") Buttons/Switches, Supplies Antennas BlinkM is a

BlinkM is a

nothing too long

Dropout Voltage: 1V

This DC power jack/connector is just like the other one that we carry except that it’s terminated with breadboard-friendly pins instead of wide solder terminals

Magnification: wide angle

SparkFun Barrel Jack Power Switch - M-F (3") Buttons/Switches, Supplies Antennas BlinkM is aWe use barrel jacks a lot around here and sometimes we need to pop a switch into the mix. That usually means hacking up a perfectly good barrel jack extension cable, but the whole point of using the barrel jacks was so that we wouldnt have to hack things apart Well, we found a solution: The Barrel Jack Power Switch. Okay, its nothing fancy but it is really useful. Plug your power supply into one end and the other into your project and, just like that,