Есть модуль Esp32-Bit на плате ESP32-T, в него успешно зашита прошивка esp32-at
user@ubuntu-1604x64:~/esp32-at$ make app-flash
Flashing app to serial port /dev/ttyUSB0, offset 0x100000...
esptool.py v2.0
Connecting........___
Chip is ESP32D0WDQ6 (revision 0)
Uploading stub...
Running stub...