FlipMods Combo is a 3-in-1 expansion module for the Flipper Zero with ESP32 WiFi and Bluetooth SoC, CC1101 Sub-GHz MCU, and a GPS module.
It contains everything to build and deploy firmware images for the ESP8266. You should check the IoT SDK API documentation - see the readme.txt in folder '/home ...
ESP8266 is fully supported and most mature, but ESP32 is also mostly there with built-in DAC as well as external ones. For real-time, autonomous speech synthesis, check out ESP8266SAM, a library which ...