ESP32 web radio /audio BT receiver /w class-D amp

Name: ESP32 web radio /audio BT receiver /w class-D amp
SKU: 9749
Price: 55.00 USD
Availability: Discontinued

ESP32 Audio developing board, will work as web radio or Bluetooth amplifier

Designed by microwavemont in Japan

Product Retired

This product is no longer available for sale.

The seller may be offering an improved version or it may be hanging out on the beach, enjoying the retired life.

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ESP32 web radio /audio BT receiver /w class-D amp 1

ESP32 web radio /audio BT receiver /w class-D amp 2

ESP32 web radio /audio BT receiver /w class-D amp 3

ESP32 web radio /audio BT receiver /w class-D amp 4

ESP32 web radio /audio BT receiver /w class-D amp 5

ESP32 web radio /audio BT receiver /w class-D amp 6

2017-10-08T05:14:22.739Z-ESP32_amp_rev2.png

2017-11-20T07:42:09.520Z-howto_add_remove.png

On Dec. 15, 2025, my tindie store "micowavemont" trying restarting! Stay tuned!

ESP32 Audio developing board, will work as web radio or Bluetooth amplifier

Notes for REV2 Newly very high efficiency 3.3V regulator (ROHM BP5293-33) is backside mounted (no heat production anymore) Acrylic top cover is attached as "service parts" (it is hand drilled and…

What is it?

ESP32 (ESP-WROOM-32) with I2S DAC (TI PCM5102A) and class-D amplifier (TI TPA3110)

Why did you make it?

Because, I did want to enjoy listening web radio by all-in-one board.

What makes it special?

By great feature of ESP32, this board can work as standalone

WiFi Web radio, receiving station preconfigured in source. URL switch by on-board tact SW (GPIO_16)
Bluetooth amplifier

Source code is available at GitHub.

This kit includes

Fully-tested (completed) main board
100-240AC/DC 9V adapter

All you will need to prepare is, 4-16 Ohms two passive speakers and WiFi environment (for web radio) or Bluetooth capable equipment (iPhone, Android..)

The acrylic plate in the picture is NOT included (REV1)

Note for this item For programming ESP32, we need to prepare esp-idf environment. As a default firmware, bluetooth speaker mode is uploaded to ESP32. Please re-write firmware for the web radio operation. If you just want to enjoy web radio and jump into web radio mode, please let me know your WiFi SSID/password in "Additional Instructions" in the order form. (WiFi connection requires SSID and password, as you would know..) I would upload firmware with your WiFi setting before shipment. (WEP/WPA both works well..) In the default firmware, OLED display will turn off after 5-seconds after power-on in order to avoid OLED noise problem.

Now add/remove preset URL is enabled through web browser!!

By the great contribution by n24bass, Preset URL's can be add/remove from your web browser by the code in github.

Please access your web radio's IP address by web browser and add and remove station preset as you wish. Assuming your web radio assigned 192.168.1.10 and the case for adding one station.

http://192.168.1.10/0+http://beatles.purestream.net/party.mp3

will add one new preset. the number "0" should be add up to 9. More details can be found in Github's readme