# Elios 2 LED patterns

Basic diagnostic information is displayed on the four LED navigation lights of the ELIOS 2. A combination of blinking patterns and colors are used to transmit different types of information about the status of the drone.

## **Drone Idle**

| Ready to fly                                                   | <img src="https://3798671238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUlQdNranSJ0ddu4qSxa%2Fuploads%2FOhhHTsHVgMsf2E68kZq8%2FReady%20to%20fly.gif?alt=media&#x26;token=96954a3b-97f1-48ff-bb25-849aeaab8835" alt="" data-size="line"> |
| -------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <p>Ready to fly</p><p>(low battery)</p>                        | <img src="https://3798671238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUlQdNranSJ0ddu4qSxa%2Fuploads%2FKmHM753MqSYJsehsXrsB%2Freadylowbat-1.gif?alt=media&#x26;token=cf8a9486-80fd-4724-adf6-eb812afdf982" alt="" data-size="line">    |
| No radio link                                                  | <img src="https://3798671238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUlQdNranSJ0ddu4qSxa%2Fuploads%2F33x633Bl4o5LGyBSnXVW%2Fnoradio-1.gif?alt=media&#x26;token=c8e36036-cd39-40a6-8629-9f26c7c1ec2b" alt="" data-size="line">        |
| <p>Hardware error</p><p>(check Cockpit)</p>                    | <img src="https://3798671238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUlQdNranSJ0ddu4qSxa%2Fuploads%2FSPbxy5GOPDiTD73L8rPO%2Fblinkred-2.gif?alt=media&#x26;token=aebd6bc9-db54-4647-9bdd-992b00c064ef" alt="" data-size="line">       |
| Motor error                                                    | <img src="https://3798671238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUlQdNranSJ0ddu4qSxa%2Fuploads%2FeRvzspYVLIrUHQrXCDsa%2Fsolidred-1.gif?alt=media&#x26;token=6dcd92eb-9159-498b-9327-c2158ab89d8f" alt="" data-size="line">       |
| <p>Firmware updating</p><p>(do not disconnect the battery)</p> | <img src="https://3798671238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUlQdNranSJ0ddu4qSxa%2Fuploads%2FjDyJqffyRqs55KW7FnQr%2FUpdate-1.gif?alt=media&#x26;token=c4852a78-3dc5-4a30-9f05-543c1f23e622" alt="" data-size="line">         |

## **In flight**

|                                                |                                                                                                                                                                                                                                                                |
| ---------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <p>Drone arming</p><p>(blinks for 3s)</p>      | <img src="https://3798671238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUlQdNranSJ0ddu4qSxa%2Fuploads%2F9lwACDZmr4c8Bl9b3JLf%2Fdronearming-1.gif?alt=media&#x26;token=64ffbbf5-f8f0-451d-89da-06b6cd8fca71" alt="" data-size="line"> |
| <p>Armed</p><p>(motors spinning)</p>           | <img src="https://3798671238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUlQdNranSJ0ddu4qSxa%2Fuploads%2FTVyFhGjhuJ2zR7v1dTMj%2FFlynormal-1.gif?alt=media&#x26;token=01a8312c-9ac0-4301-b595-7207333df5f6" alt="" data-size="line">   |
| Low Battery                                    | <img src="https://3798671238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUlQdNranSJ0ddu4qSxa%2Fuploads%2FiZXcb4sGIF04kjIo18Nj%2Fflylowbatt-1.gif?alt=media&#x26;token=5653ea9e-d35b-4f5c-bdeb-78ca6414b2e8" alt="" data-size="line">  |
| <p>No radio link</p><p>(emergency landing)</p> | <img src="https://3798671238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEUlQdNranSJ0ddu4qSxa%2Fuploads%2F1WG1V9k7BhThQrGpk127%2Fflynoradio-1.gif?alt=media&#x26;token=6f909543-7bc0-42e5-86bf-9caf0e2345f3" alt="" data-size="line">  |