Semtech LR2021 LoRa chip gets the SDR treatment, supports 100 MHz to 2.74 GHz

Earlier this month, we saw how the humble ESP32-S3 could be turned into an SDR transmitter and receiver; then we saw developer h0m3us3r release the w1700k-sdr project, which turns a Gemtek W1700K Wi-Fi 7 router into a wideband SDR receiver. The LR2021-SDR open-source project by Samuel Reynolds (SAMS0N1TE) follows the same principle and turns the Semtech LR2021 LoRa transceiver into a software-defined radio (SDR) capable of receiving signals from 100 MHz to 2.74 GHz. Using an undocumented command in the chip’s…

Quelle: Originalartikel öffnen