Squirrel firmware for Pycom/ESP32


In the spirit of Dragonfly firmware for Pycom/ESP32, we have updated the firmware images based on the Pycom Firmware Release 1.20.2.

The firmware images referenced within this post are all based on Pycom’s 1.20.2.rc3.

Vanilla firmware images

These images called VERSION-BUILD-vanilla-squirrel are inofficial firmware images for testing built with VARIANT=BASE. They are available from Index of /hiveeyes/foss/pycom/vanilla/. The most recent releases are:


Using the most recent 1.20.2.rc3 release seemed to help @pascalschaefer doing pure LoRa on a LoPy4 device, see Random Core Panic with Lora Socket send/recv, device doesnt restart - try with CONFIG_ESP32_PANIC_SILENT_REBOOT | Pycom user forum and Investigating core panics on the LoPy4.

I tried the new build LoPy4-1.20.2.rc3-0.8.0-vanilla-squirrel.tar.gz and not any “bad00bad bad00bad bad00bad” Core Panic happened till now.

Thanks @husigeza and the whole Pycom team for mitigating this issue.