Hello World Project

The Hello World circuit is a basic LED circuit. Holding a 9-Volt battery to the + and - terminals on the circuit provides power, and a 555 timer integrated circuit (IC) controls the signal that flash the LEDs at a frequency determined by the resistors and capacitor.

We have included all the materials and components you need to print your first circuit in the Hello World kit. If you need another kit, you can grab one from our store.