Updated to support current libaries

• Added support for a new button for wifi config mode
• Added support for potentiometer for volume control (still a bit noisy, keeps updating volume, ideally would use a better one or make it less sensitive.)
• Wifi config mode allows the user to configure and add new radio stations
• Changed audio package to use default "Audio" package for esp32 to fix broken play function

Setup

3D Files: Onshape project link

Screen used as replacement: Aliexpress - 13PIN welding1.14 Nieuwe IPS 1.14 inch LCD 1.14 inch TFT LCD IPS display LCD kleuren LCD HD display module

Esp32 Board: Tinytronics -LilyGO TTGO T-Display V1.1 ESP32 - with 1.14 inch TFT Display

L2S DAC: Aliexpress - CJMCU-1334 UDA1334A I2S Dac Audio Stereo Decoder Module Board Voor Arduino 3.3V - 5V

Potentiometer: Panel Mount 100K Potentiometer (generic unbranded)

Buttons: 2x Generic breadboard buttons

Install packages

This program is meant to be used with the TTGO-T-Display V1.1

ArduinoJson by Benoit: v7.4.1 or latest

Button2 by Lennart: v2.3.4 or latest

ESP32-audiol2S-master by schreibfaul1: v2.0.0 (V3 WILL NOT WORK without refactor)

TFT_eSPI by Bodmer: V2.2.20 (download from the TTGO T-Display git repo by zipping the tft_eSPI folder and loading it as a zip library)

BluetoothA2DPSink: Have to download this from github only it looks like. Load as a zip library.

Usage

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1. TTGO Bottom Button (Backlight / Mode)

• Physical Location: Bottom button on the TTGO board (connected to GPIO 0).
• Tap Action (Short Press):
  • Cycles through predefined backlight brightness levels for the TFT screen.
• Long Press Action (Hold for approx. 1 second):
  • Toggles the audio mode between WiFi Radio and Bluetooth Sink.
    • The screen will indicate the mode change.

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2. TTGO Top Button (Visualizer / Config)

• Physical Location: Top button on the TTGO board (connected to GPIO 35).
• Tap Action (Short Press):
  • Cycles through the available audio visualizer animations (e.g., Bars, Circles, Particles).
    • If a visualizer is active, a tap will turn it off and return to the main information screen.
    • If the visualizer is off, a tap will turn on the first visualizer.
• Long Press Action (Hold for approx. 3 seconds):
  • Puts the device into Configuration Portal Mode on the next reboot.
    • This allows you to connect to the device's WiFi Access Point (AP) to configure WiFi credentials and radio stations via a web browser.
    • The device will display "Rebooting to Config Mode..." and then restart.

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3. External Button C (Play / Stop - WiFi Radio Only)

• Physical Location: External button connected to GPIO 12.

• Tap Action (Short Press):

  • If in WiFi Radio Mode: - If a station is selected and not playing: Starts playback of the current WiFi radio station. - If a station is playing: Stops playback of the current WiFi radio station.
    • If in Bluetooth Mode: This button has no function.

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4. External Button D (Next Station - WiFi Radio Only)

• Physical Location: External button connected to GPIO 17.
• Tap Action (Short Press):
  • If in WiFi Radio Mode AND playback is currently STOPPED: - Selects the next radio station in the stored list. The station name will update on the display. - This does not automatically start playback; use the "Play/Stop" button to start the newly selected station.
    • If in WiFi Radio Mode AND playback is active: This button has no function (you must stop playback first to change stations this way).
    • If in Bluetooth Mode: This button has no function.

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Note on Volume Control: Volume is controlled by the potentiometer (connected to POT_PIN / GPIO 32). Turning the potentiometer will adjust the volume for both WiFi Radio and Bluetooth modes. The display shows the volume as a percentage.