I have been working on some firmware for the DIY Pro using the ESP32-S2. With the Wemos S2 mini it’s plug and play.
It also has some improvements like a smooth scrolling display, support for PMS5003ST (Formaldehyde), support for MQTT/Homeassistant (also still supports airgradient HQ upload), PMS sensor sleep (for increased lifetime), OTA configuration and firmware updates, etc.
No problems with reboots or crashes like I had on the ESP8266. The platform I2C support is a little buggy but I have worked around it and it is stable.
This firmware is based on the firmware from Airgradient and others; I greatly appreciate all the hard work others have contributed.
It’s located here for anyone that is interested: