lacybad / esp32_webradio

An Internet web radio based to ESP32

ESP32_WebRadio

An Internet web radio based to ESP32

ESP32 connect to the Internet via WiFI (support WEP/WPA/WPA2), fetching MP3/AAC audio stream from your favourite webradios (mine is Dance Wave!). Then decode MP3 and send via I2S to DAC. The DAC simply output audio to a PAM8403 3W amplifier.

My grandpa made for me a fantastic wood case that sits perfectly on my book shelf in the linving room ;-)

This is the inside, with the mainboard, battery, charge/discharge module, speakers and, on the right, hide by a panel, the 4 buttons control board:

This is a detail of the Nokia 5110 LCD display:

Configuration

Edit data/config.json file with your wifi ESSID and password. Fill data/streams.json with your favourites streams. Then burn the whole data directory into SPIFFS partition. Other stuff can be edited via web interface, available after successfull contection to the net.

Bill of materials

For a basic board:

• DOIT ESP32 WebKit v1 (or other suitable ESP32 board...) (On AliExpress)
• CJMCU 5102 DAC AliExpress
• PCD8544 LCD Display (aka NOKIA 5110 display) module (On AliExpress)
• PAM8403 2*3W Amplifier board (On AliExpress)
• One or more NeoPixel, but they are not mandatory ;-)
• Two 8 Ohm speaker
• 3 x 10K Ohm 1/8W resistors
• 2 x 100K Ohm trimmer
• 330 Ohm 1/8W resistor
• 860 Ohm 1/8 W resistor, only if you want to add one or more NeoPixels
• 3 push buttons (On AliExpress)

On mine, i've added an 18650 LiBo battery and a voltage charge/discharge regulator (on Aliexpress), with key pin (connected to the fourth button) to power on and off. With this module, i can power (anche charge the battery) using USB. I've choosed an USB B connector (i have some lying on the table...) and it works perfecly ;-). With a fully charged battery, it can play sound at reasonable volume for about 2 hours.

Schematic

ChangeLog

0.0.6 - 30.07.2020

• Just small remarks to fix some compiler errors

0.0.5 - 03.06.2020

• Better wifi icon
• Display now show more info about radio and songs
• Adding streams URL via Web now work
• Minor bugs fixed

0.0.4 - 20.05.2020

• Better OTA handling
• Display now show scrolling title and stream name, current time and wifi power in top bar, volume in bottom (WIP)
• Miscellaneous improvements and bug fixed

0.0.3 - 14.05.2020

• Some design changes, like 3 mechanical buttons (but you can use capacitive ones, if you want)
• Streams list also on webpage, with the ability to play each with a click
• Display graphic improvementes
• Lots of new features and bugs fixed
• Other minor changes

0.0.2 - 09.05.2020

• Added streams.json with lists of stream URL to be played
• Some minon bugs fixed

0.0.1 - 08.05.2020

• First public release

Other resources

Start with ESP32 pinouts from here: https://randomnerdtutorials.com/esp32-pinout-reference-gpios/

Needs the great work from Wolle for MP3 stream decoding and I2S interface: https://github.com/schreibfaul1/ESP32-audioI2S

A great tutorial for Nokia 5110 LCD displays is there: https://lastminuteengineers.com/nokia-5110-lcd-arduino-tutorial/

Contributions

This work is free and far to be perfect nor complete. Contributions and PR are welcome and strongly encouraged!