ESP32-S3 : Unit of the noise_floor and rssi ?
Posted: Wed Feb 01, 2023 3:17 pm
Hello,
I'm using Rust and the esp-idf framework to read the RSSI and noise floor from the frames I receive in promiscuous mod, on an ESP32-S3-DevKitC-1.
The value I get are around 160 for the noise floor and generally between 170 and 220 for the RSSI (I'm interpreting these values as i32). The closest I am to the access point, the bigger the RSSI, which means it seems to be working, at least, a bit.
According to the doc in https://docs.espressif.com/projects/esp ... _rx_ctrl_t, the values should be in dBm. But 220 dBm is a bit too much for wireless access points, so, I'm having trouble understanding what are those values…
This is how I read the values in the callback:
I'm using Rust and the esp-idf framework to read the RSSI and noise floor from the frames I receive in promiscuous mod, on an ESP32-S3-DevKitC-1.
The value I get are around 160 for the noise floor and generally between 170 and 220 for the RSSI (I'm interpreting these values as i32). The closest I am to the access point, the bigger the RSSI, which means it seems to be working, at least, a bit.
According to the doc in https://docs.espressif.com/projects/esp ... _rx_ctrl_t, the values should be in dBm. But 220 dBm is a bit too much for wireless access points, so, I'm having trouble understanding what are those values…
This is how I read the values in the callback:
Code: Select all
let noise_floor: i32 = pkg_data.rx_ctrl.noise_floor();
let rssi: i32 = pkg_data.rx_ctrl.rssi();