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ESP32 based Gong with embedded webserver, Audio/Sound player, OTA and more

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flyinggorilla/esp32gong

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esp32gong

ESP32 based Gong with embedded webserver, Audio/Sound player, OTA and more - e.g. for Sparkfun thing, Adafruit Huzzah32, and many others

features

  • 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

screenshots

storage

build

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

hardware

gong speaker-box

start

  • 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.

speaker-box with sparkfun thing

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ESP32 based Gong with embedded webserver, Audio/Sound player, OTA and more

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