Step 18: (Optional) LEDs, Part IV: Wiring
-My circuitry knowledge is limited, so if you have any suggestions, please comment. Constructive criticism is appreciated.
-The whole circuit will be powered by a single 3V 2032 button cell battery.
-The circuit will be in parallel, so that all 8 LEDs can draw power from this battery.
-The switch will be located at the bottom, for easy access.
-NEVER SOLDER A BATTERY!
To do this, start by connecting all the positives of your LEDs (preferably with red-cased wiring) and all the negatives (preferably with black-cased wiring). I used 18 gauge wire, but something smaller would probably work better. With the LED closest to the switch, leave a bit of slack for the negative (about 10cm) and half that for the positive (about 5cm). The positive will be connected to the toggle switch.
Once all your wiring is soldered (I will not be going over how to solder), the last step is to attach the battery. If you have some sort of battery holder, you could use this. Otherwise, the safest way is to attach your positive and negative wires with electrical tape. AGAIN, NEVER SOLDER A BATTERY! IT COULD EXPLODE!
Once this is done, test out your circuit. If all the LEDs light up, then you did everything alright. Now to merge our two creations into one!