How To Connect 9v Battery Connector. My program and wiring work well when the Uno board is powered by the USB port to the computer. 9V battery cells have this connector that is basically reversible.
I replaced the cheapo pair of 9v connectors with a one double 9v connector from Mouser electronics. It doesnt make sense. Make sure you get the version that puts the batteries in series.
What on earth am I doing wrong.
And the best part it is FREE there is n. The battery wont connect to the wiring plugs correctly. 47 out of 5 stars 2215. Ive never used a 9V battery before.
