ESP32 based Gong with embedded webserver, Audio/Sound player, OTA and more - e.g. for Sparkfun thing, Adafruit Huzzah32, and many others
- Webserver with GET/POST, multipart-mime upload and TLS support
- Webclient with TLS support
- Url/Querystring parser
- Captive webserver in Access Point mode (needs improvement for true captive capabilities)
- Responsive Web UI based on Phonon 1.4.5
- Data embedding (such as HTML, CSS, font files, audio...)
- WAV decoder (e.g. 8 or 16bit mono wav files 16khz work very well, but some other rates work too)
- Audio player to I2S devices (e.g. Adafruit MAX98357A)
- C++, ESP-IDF
- Wifi AP/STA mode (GPIO0 button will toggle mode)
- Stores config in NVS
- Storage class to wrap SPIFFS read/write access for storing uploaded files on flash on dedicated data partition
- ICMP Ping to Gateway address is used for a watchdog implementation that resets ESP32 in case of broken wifi
todo:
- mp3 support
Updated to ESP-IDF 4.3. Works now also with Visual Code as editor and ESP-IDF plug-in.
- Setup ESP-IDF toolchain according to http://esp-idf.readthedocs.io/en/latest/
- run
idf.py menuconfig- adjust flash to 4MB (assuming your ESP32 has at least 4MB flash)
- change partition setting to custom and choose
partitions.csv. - Sparkfun thing requires 26Mhz XTAL frequency (vs. 40MHz is default); Huzzah32 work fine at 40MHz
- SparkFun thing
- Adafruit MAX98357A
- Standard 3" speaker - 4Ohm, 3W e.g. https://www.adafruit.com/product/1314
- 3D printed case - download model from thingiverse
- once your ESP32 is flashed and started the wifi and webserver, it launches an accesspoint called "esp32gong" by default. connect to it and launch http://192.168.4.1/ to configure wifi and upload wav files.
