The Raspberry Pi has two LED lights that convey information about its status.

Red (power) LED

Red (power) Status Tips
(solid red) OK Good to go!
(blinking red) Low power Try a more powerful power supply or a different cable.
(off) No power / low power Plug in to a 5V, 3A power supply.

Green (activity) LED

Green (activity) Status Tips
(solid green) Busy Working/booting
(blinking randomly) Busy Working/booting
(blinking consistently) Network disconnected or emergency stopped Configure FarmBot, press UNLOCK in the Web App, or check that the network FarmBot is connected to is online.
(off) Ready Waiting for the next task

Electronics Box LEDs

In addition to the LEDs located on the Raspberry Pi, Genesis v1.4+ kits feature LEDs mounted on top of the electronics box.

LED 1

This green LED indicates the sync status between FarmBot and the web app. It is connected to Raspberry Pi GPIO BCM pin 24.

Green (sync) Status Tips
(solid green) Synced Ready
(blinking slowly) Needs sync Will not execute any unsynced events or sequences
(blinking quickly) Syncing  
(off) Offline Check the connection status LED

LED 2

This blue LED indicates the connection status between FarmBot and the internet and web app. It is connected to Raspberry Pi GPIO BCM pin 25.

Blue (connection) Status Tips
(solid blue) Connected Working
(blinking slowly) Needs configuration Configure FarmBot, press UNLOCK in the Web App, or check that the network FarmBot is connected to is online.
(off) Offline Check your internet connection.

If you are connected to the internet but the Blue LED is off, one or more of your ports may be blocked. Get your network administrator to check the ports listed in the Firewall is blocking network traffic troubleshooting section.

LED 3

This white LED is user controllable via the Control Peripheral sequence command. It is connected to Raspberry Pi GPIO BCM pin 12.

LED 4

This white LED is user controllable via the Control Peripheral sequence command. It is connected to Raspberry Pi GPIO BCM pin 13.

Button 1 LED

This red LED indicates if FarmBot is E-STOPPED or not. It is connected to Raspberry Pi GPIO BCM pin 17.

Red (E-stop) Status Tips
(solid red) Unlocked Ready
(off) Locked Check the Button 2 LED status

Button 2 LED

This yellow LED indicates if FarmBot is UNLOCKED or not. It is connected to Raspberry Pi GPIO BCM pin 23.

Yellow (unlock) Status Tips
(blinking) Locked When safe to do so, press this button to unlock FarmBot.
(off) Unlocked Ready