How to make a easy LED sign board this is my first instructable.
Step 1: Materials and Tools
circuit board in this case I used a matrix board
AC/DC adapter in this case I used a 10v one
Step 2: Materials and Tools
Place all your LEDs in your LEDS In a board and write something.
Step 3: Soldering Soldering Soldering
Solder all the LEDs in parallel (thats all the negative Leeds together and positives together make sure the positives don't come in contact with the negatives) and solder a resister to to the last positive contact and solder the switch to the negative contact and solder the negative of the transformer to the switch and the positive to the resister.