Ultra-minimal, zero-CPU 5.8 GHz analog FPV video receiver using ESP32-C5 Wi-Fi 6 PHY MODEM_DIAG, BitScrambler WBFM demodulation & resistor DAC CVBS
Linux (Ubuntu 24.04/26.04 or OpenWrt) next to Android on the ZTE F50 / MU300 and U30 Air 5G hotspots (Unisoc T760 / UMS9620): installer, vendor 5.4 and mainline 6.18 / 7.2 kernels, 5G modem, Wi-Fi, battery, LEDs, NFC, findings
Dire Wolf is a software "soundcard" AX.25 packet modem/TNC and APRS encoder/decoder. It can be used stand-alone to observe APRS traffic, as a tracker, digipeater, APRStt gateway, or Internet Gateway (IGate). For more information, look at the bottom 1/4 of this page and in https://github.com/wb2osz/direwolf/blob/dev/doc/README.md
ESP8266/ESP32/Arduino custom modem<->internet simulator with lots of features