# 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:

	Cover image
Hello World Component Kit	Hello world kit.png	https://store.voltera.io/products/hello-world-component-kit

{% hint style="warning" %} Before starting the project, be sure to review the [Safety ](https://docs.voltera.io/docs/v-one/getting-started/v-one-user-manual/v-one-safety-information/english)[Guidelines](https://docs.voltera.io/docs/v-one/getting-started/v-one-user-manual/v-one-safety-information/english) for using the V-One. {% endhint %} ## In a hurry? Follow along with Mike as you learn the basics of the V-One in this step-by-step guide. He'll teach you tips and tricks as you complete your very first Hello World circuit! {% embed url="" %}