Zigbee RSSI value

RE: Zigbee RSSI value

Marte Myrvold — Fri, 28 May 2021 09:47:17 GMT

Hi,

Yes, that makes sense. When talking about signal strength, the closer it is to 0, the stronger the signal is. Increasing the distance between the devices will decrease the signal strength, and you will get a more negative value. So -80 dBm will be a weaker signal than -30 dBm.

Best regards,

Marte

RE: Zigbee RSSI value

Marwa Sabbagh — Thu, 27 May 2021 20:15:08 GMT

Hello, is it accurate that as the distance between the DK increases, the more negative value in dBm it will be?

RE: Zigbee RSSI value

Marte Myrvold — Thu, 27 May 2021 06:04:26 GMT

Hi Marwa,

You can use the function nrf_802154_dbm_from_energy_level_calculate() to convert energy measured in 0-255 to dBm:

zb_uint8_t lqi, rssi;
int8_t rssi_dbm;
zb_zdo_get_diag_data(0x0000, &lqi, &rssi);
rssi_dbm = nrf_802154_dbm_from_energy_level_calculate(rssi);

Best regards,

Marte

RE: Zigbee RSSI value

Marte Myrvold — Wed, 26 May 2021 13:30:06 GMT

Hi Marwa,

I tried to use this myself, but was unable to figure out how to get RSSI as dBm. I have asked our developers for clarification regarding this, so I will come back to you when I hear from them.

Best regards,

Marte

RE: Zigbee RSSI value

Marwa Sabbagh — Tue, 25 May 2021 15:47:26 GMT

Hi,

I am using zb_zdo_get_diag_data()

Best regards,

Marwa

RE: Zigbee RSSI value

Marte Myrvold — Tue, 25 May 2021 14:25:23 GMT

Hi,

What are you using to get the RSSI value?

Best regards,

Marte