Ka-Radio WiFi Internet radio

thingiverse

The ESP32 version of KaRadio is a highly customizable and feature-rich radio application designed specifically for the ESP32 microcontroller. You can find the code on GitHub at https://github.com/karawin/Ka-Radio32. To build your own KaRadio, you will need several components. First, you'll need to get a VS1053b audio codec chip, which is available on eBay at https://www.ebay.com/itm/-/310645105092. This chip is responsible for decoding and playing back audio files. Next, you'll need an ESP32 microcontroller board, which can be purchased from AliExpress at https://www.aliexpress.com/item/32817106037.html. The ESP32 is a powerful and versatile microcontroller that can handle a wide range of tasks, including radio reception and playback. In addition to the ESP32 and VS1053b chip, you'll also need an OLED display to show the radio's interface and information. I recommend getting a 128x64 OLED display with a 0.96" screen size, which is available on AliExpress at https://www.aliexpress.com/item/32828021239.html. To control the radio, you'll need an encoder module that can read button presses and send signals to the ESP32. I recommend getting an encoder module from AliExpress at https://www.aliexpress.com/item/32527999742.html. For audio output, you'll need a good quality amplifier board. While I initially tried using an amplifier board from AliExpress (https://www.aliexpress.com/item/32784198988.html), it didn't work for me, so I ended up using a different one available at https://www.aliexpress.com/item/32574110297.html. Finally, you'll need two 2" speakers to play back the audio. These are also available on AliExpress at https://www.aliexpress.com/item/32593991938.html.