DIY TEA5767 Digital FM Radio Kit with Red LED Display

Real FM tuning on a board you build

Watch the tuner work

The TEA5767 digital FM tuner picks up stations, and the STC 51 microcontroller handles the controls on the board you solder. Nothing is hidden inside a sealed shell. If you want more radio gear to pair with it, check the radio and headset range.

Read the frequency in red

The four-digit red LED shows the exact frequency you are tuned to, such as 102.8. You always know which station is playing, and the display is bright enough to read across the room.

See the circuit the whole time

The acrylic panels screw onto standoffs around the board, so the PCB, chips and speaker stay in view. You can point at every part you soldered while the radio runs.

What you see on the board

• 4digit red LED frequency display
• 2core chips: TEA5767 tuner and STC 51 microcontroller
• 6parts, from the loose PCB to the power cable
• 5VDC supply for the finished radio

From loose parts to a tuned station

1. 1
   Sort the parts

   Lay out the PCB, acrylic panels, speaker, telescopic antenna, power cable and screws. Check that every part in the box is there before you start.

2. 2
   Solder the board

   Populate the PCB in stages, starting with the low-profile parts. Watch the polarity on the electrolytic capacitors and match the marked negative leg to the printed mark on the board.

3. 3
   Inspect the joints

   Look at every joint under good light and check for bridges between pads. Fix any problem now, because a short can damage the chips once the radio has power.

4. 4
   Mount the acrylic case

   Attach the panels with the screws and standoffs so the board sits flat and the display lines up with the front opening.

5. 5
   Power on and tune

   Connect the DC cable, extend the chrome antenna, and turn the volume knob up slowly. Tune to a station and the red display shows its frequency.

Everything you need, nothing to hunt for

• Loose radio PCB kit×1

  Blue board with the TEA5767 tuner and STC 51 microcontroller, ready to solder

• Acrylic enclosure panels

  Clear panels that form the see-through case

• Speaker×1

  Built-in speaker wired to the volume potentiometer

• Telescopic chrome antenna×1

  Extends for FM reception

• DC power cable×1

  Powers the finished radio from a 5V supply

• Mounting screws and standoffs

  Holds the board and panels together

Stop staring at finished gadgets you didn't make

Stop staring at finished gadgets you didn't make

Most beginner projects end up in a drawer, half wired and never powered. Finished radios are easy to buy and teach nothing. You want a project that ends with something working on your desk.

A TEA5767 and an STC 51 on one board

The TEA5767 digital tuner finds the stations and the STC 51 microcontroller runs the controls. You populate the blue PCB yourself, so every chip you solder is a part you can point to when the radio plays.

Tune a real station and keep it on the desk

Power it up, extend the chrome antenna, and the red display shows the frequency you are tuned to. The case stays clear, so the circuit keeps working in plain sight after the build is done.

Why build it, not buy it