# Status LEDs

## **Status LEDs**

The radios have 6 status LEDs, there blue, two orange and one green. The meaning of the different LED states is:

![](/files/IAxBTaGAUA668DpWrnuJ)

**STATUS LED (green) - indicate the heartbeat of the module.**

| Green blinking     | module is operating |
| ------------------ | ------------------- |
| Green off or solid | module has crashed  |

 **RSSI LEDs (blue) - indicate the receive signal strength.**

<table data-header-hidden><thead><tr><th></th><th width="150"></th><th width="150"></th><th></th></tr></thead><tbody><tr><td>RSSI</td><td>25 (LED)</td><td>50 (LED)</td><td>100 (LED)</td></tr><tr><td>&#x3C;25%</td><td>off</td><td>off</td><td>off</td></tr><tr><td>25%~50%</td><td>on</td><td>off</td><td>off</td></tr><tr><td>50%~85%</td><td>on</td><td>on</td><td>off</td></tr><tr><td>85%~100%</td><td>on</td><td>on</td><td>on</td></tr></tbody></table>

&#x20;**UART LEDs (orange) - indicate there are datas transmitting or receiving over UART.**

<br>


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