DIY Internet radio with the ESP32 Dev Kit C to build yourself | with blog instructions

Internet radio with the ESP32

Many radio stations can be listened to as MP3 streams over the Internet. Since the ESP32 microcontroller has Wi-Fi capabilities and can convert the digital data stream into an analog signal using two built-in digital-to-analog converters, it is the ideal solution for this project. In addition, an MT3608 power supply and a TP4056 charge controller for the battery power supply, an audio amplifier, two speakers, a display for showing the station, and an input device for setting the station (KY-040 rotary encoder) are offered as a bundle. You can round off the project with a case from a 3D printer.

The following products from the project are included in the bundle:

• ESP32 NodeMCU Module WLAN WiFi Development Board
• PAM8403 digital mini audio amplifier
• TP4056 Mini USB 5V 1A Charge Controller Lithium Li
• MT3608 DC-DC Power Supply Adapter Step-up Module
• HD44780 1602 LCD Module Display Bundle with Adapter
• KY-040 Rotary Encoder Rotary Encoder Module
• perforated circuit board
• 2 DFplayer Mini 3 Watt Mini Speakers

These products are additionally required depending on implementation:

• EEMB 3.7V 2000mAh Lipo battery
• Resistors Resistor Kit 525 pieces
• Electrolytic capacitor 1000uF / 10V
• 19-pin spring-loaded connectors
• 3-pin pin header
• 4-pin pin header
• 5-pin pin header
• Knobs for 6mm shaft
• Female to female jumper cable
• Front part of the housing from the 3D printer
  
• Housing back cover from the 3D printer
• Battery safety cover from the 3D printer

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