Using the “Wio-SX1262 for XIAO” to easily build LoRa point-to-point communication with various XIAOs

[msfujino]

A point-to-point long distance communication experiment was carried out with XIAO_MG24 mounted on Wio-SX1262 for XIAO. The main parameters are: frequency 922.6[MHz], Txpower=13[dBm], bw=125[kHz], sf=12, cr=5, antenna λ/2.
Stable communication was achieved with RSSI=-127[dBm] and SNR=-15[dB] over a line of sight of 24.5[km].

This was the same as the results of the experiment with LoRa-E5 mini shown in the link below.

Here is the sketch I used for the experiment. The sketch should be easily modified for other XIAOs.
POST_SX1262_MG24_P2P.zip (8.5 KB)

Programming LoRa-E5 with Arduino, LoRa-E5 mini Point to Point Comminucation over 24 km

In my previous experiments I had been able to achieve a communication distance of 10 km. To further extend the communication distance, I used Google Map to find a line-of-sight route. The result was communication over a distance of 24.5 km, RSSI below the measurement limit of -127[dBm], and SNR of -15[dB]. However, it was susceptible to noise, and every time a truck passed by Slave, communication was lost or a verify error occurred, so I think 24 km is the limit. The procedure is, Slave send…