How To Connect Wires To A 9v Battery. I have an Uno that is programmed with two IR sensor inputs and a single LED output. Servo ground battery ground and Arduino ground should all be connected together.
Where Im having trouble is that the rocker switch includes its own LED which should light when the switch is on I cant figure out how to make that part work. The battery box can be buy in the market as the following one. Find a dead 9 volt battery.
A battery snap switch.
Do not connect a charger to each battery unless you break the electrical connection between the batteries. Im trying to light up an LED using a 9v battery and control it with a rocker switch. Tear its head off - aka remove the terminals. How to Make a Simple Electric Circuit for School Science P.
