# What does GroLab™ UserBot allows me to control?

That's actually up to you! This shield only allows you to connect your Arduino to your GroNode, the sensors and devices that you need are chosen by you.

If you need to control a lamp, you should have a relay, if you need to sample an analogue voltage for any purpose, you need to use Arduino analogue pins or get an external ADC.

This is a plug'n'play shield for your Arduino that does not need any external power, and allows you to interface with whatever sensor or device you may need.

### STEP 1 - Install your Shield

### STEP 2 - Download the UserBot source code

Using the source code for UserBot as base, you should now edit the source code to support your sensors and devices.

You can find all the needed source code to interface your Arduino with GroLab in our public GitHub Repository.

### GroLab™ Sensors Public Repository

Visit repository

### STEP 3 - Create your schematics

Below you can find the schematic used for example. It's a UserBot that adds a temprature sensor and 3 buttons that can trigger any action in your grow. Install the shield, connect a few wires, upload the code and you get your own user bot running.