Make Your Own FM Radio

In this project I will show you how to transform a TEA5767 and an Arduino Pro Mini into a functional and decent looking FM Radio through the help of a couple complementary parts. Let's get started!

Step 1: Watch the Videos!

The two video parts should give you an overview of what is necessary to build the radio. In the following steps I will present you more detailed information.

Step 2: Order Your Parts!

Here you can find a parts list for the electronics with example sellers for your convenience (affiliate links).

Aliexpress:

1x Arduino Pro Mini: https://s.click.aliexpress.com/e/_d62ALdV

(Optional) FTDI breakout: https://s.click.aliexpress.com/e/_dV4Gqp1

1x TEA5767: https://s.click.aliexpress.com/e/_dUeK6Gf

1x MCP4151: https://s.click.aliexpress.com/e/_dVAqCon

1x TDA1905: https://s.click.aliexpress.com/e/_d655b9d

or (Optional) 1x PAM8403: https://s.click.aliexpress.com/e/_dSgFjif

1x HD44780 16x2 LCD: https://s.click.aliexpress.com/e/_Bf9FG7aX

1x MT3608: https://s.click.aliexpress.com/e/_d8Eky7d

1x TP4056: https://s.click.aliexpress.com/e/_dX8n0hp

1x Micro USB breakout: https://s.click.aliexpress.com/e/_dWadkSj

1x 18650 Li-Ion battery: https://s.click.aliexpress.com/e/_dY2Dqpb

1x Slide Switch: https://s.click.aliexpress.com/e/_dVn7Jlz

1x Rotary Encoder: https://s.click.aliexpress.com/e/_dZs9jUb

1x Speaker: https://s.click.aliexpress.com/e/_dZ3FfXt

6x 10kΩ, 1x 3.3kΩ, 1x 100Ω, 1x 1Ω Resistor: https://s.click.aliexpress.com/e/_dTPpXjt

1x 10kΩ Potentiometer: https://s.click.aliexpress.com/e/_dX83GAF

1x 100nF, 1x 220nF Capacitor: https://s.click.aliexpress.com/e/_dU4FEsB

3x 1µF, 1x 2.2µF, 1x 10µF, 1x 220µF Capacitor: https://s.click.aliexpress.com/e/_d7dOwRz

1x Retractable Antenna: https://s.click.aliexpress.com/e/_dUTSRTD

2x 5mm RGB LED: https://s.click.aliexpress.com/e/_d7mYgib

Ebay:

1x Arduino Pro Mini: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

(Optional) FTDI breakout: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x TEA5767: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x MCP4151: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x TDA1905: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

or (Optional) 1x PAM8403: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x HD44780 16x2 LCD: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x MT3608: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x TP4056: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Micro USB breakout: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 18650 Li-Ion battery: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Slide Switch:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Rotary Encoder: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Speaker:http://rover.ebay.com/rover/1/711-53200-19255-0/1?..

6x 10kΩ, 1x 3.3kΩ, 1x 100Ω, 1x 1Ω Resistor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 10kΩ Potentiometer: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 100nF, 1x 220nF Capacitor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

3x 1µF, 1x 2.2µF, 1x 10µF, 1x 220µF Capacitor:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Retractable Antenna: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x 5mm RGB LED:http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Perfboard with copper dots: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Amazon.de

1x Arduino Pro Mini: http://amzn.to/1HwhJ8d

(Optional) FTDI breakout: http://amzn.to/1JbxEah

1x TEA5767: http://amzn.to/1U4FTOC

1x MCP4151: http://amzn.to/1TNHlp7

1x TDA1905: -

or (Optional) 1x PAM8403: http://amzn.to/1TNHzwq

1x HD44780 16x2 LCD: http://amzn.to/1TNHCbQ

1x MT3608: http://amzn.to/1U4G2l9

1x TP4056: http://amzn.to/1NnD3hB

1x Micro USB breakout: http://amzn.to/1PNqUYL

1x 18650 Li-Ion battery: http://amzn.to/1U4G3FW

1x Slide Switch: http://amzn.to/1U4G7p1

1x Rotary Encoder: http://amzn.to/1YAoEEp

1x Speaker: http://amzn.to/1U4G5h5

6x 10kΩ, 1x 3.3kΩ, 1x 100Ω, 1x 1Ω Resistor: http://amzn.to/1E9uEhN

1x 10kΩ Potentiometer: http://amzn.to/1YAqrJC

1x 100nF, 1x 220nF Capacitor: -

3x 1µF, 1x 2.2µF, 1x 10µF, 1x 220µF Capacitor: http://amzn.to/1YAqEfK

1x Retractable Antenna: http://amzn.to/1U4GEHF

2x 5mm RGB LED: http://amzn.to/1U4GEYf

Perfboard with copper dots: http://amzn.to/1YAqPI8

Step 3: Create the Circuit!

Use the given schematic to create the circuit. It is always a good idea to wire up the components on a breadboard before moving the circuit over to a perfboard.

Step 4: Upload the Code!

Here you can find the Arduino Code you need to upload before the radio can function properly.

Step 5: Build Your Case!

Here you can find the vector graphics I made for my own case. Feel free to use them to mill your own one or print them out and use them as a template. After your case is complete it is time to mount all your other external components and main perfboard inside it.

Step 6: Success!

You did it. You just built your own FM Radio!

Feel free to check out my YouTube channel for more awesome projects:

http://www.youtube.com/user/greatscottlab

You can also follow me on Facebook, Twitter and Google+ for news about upcoming projects and behind the scenes information:

https://twitter.com/GreatScottLab

https://www.facebook.com/greatscottlab

Comments

[o.akbulut1713]

Hello, 5 buttons to add the user wants to memorize the frequencies will be much better. Or turn off the radio and start the last listened frequency. Can you do?

[fanzl]

Use EEPROM library to store and read values

[sanwer solanki]

we are making this fm radio project using arduino pro mini .we need the pcb layout of the circuit to complete our project .please provide us the pcb layout

[tanmay01]

Can i get the PCB lay out i can not understood the S2 (P1, P20) portion

[denman12]

Did you receive the pcb layout?

[GireeshM]

https://cdn.instructables.com/ORIG/FLS/QB8I/ILJQD0YK/FLSQB8IILJQD0YK.png
Those who need clear Schematic diagram, please click the link

[o.akbulut1713]

i set up the fm channel and volume and when i turn off and turn on again it is not starting from my last settings i mean its not keeping it in it's memory how can i fix it , please help.

[Matthew37EDA]

Would the circuit work on 5 volts and if so how much current would it draw?

[edadams]

Got it mostly working, but for some reason it is constantly switching between modes (freq and volume)... I've tried different Arduinos and various hardware debounce techniques. Any ideas?

[edadams]

Got it figured out... oddly enough it was the way I was powering my arduino. When powered via wall-wart or usb it caused a jumpy mode switch. Powered by battery or my bench supply it's smooth as glass.

[Pilusca]

Put the rotary SW pin between 10k rezistor & 100nF and GND pin of rotary switch to GND and everything with works “like a charm” !

[JohnS61]

I'm having the same issue. I did try and power it from the wall and also from a battery, but it still switches. Any advice? :(

[lestat6666]

Can you please share the Eagle-Schematic ?

[PaundraT]

Can you make a circuit WITHOUT the amplifier?

[callumw18]

Without the amp it will work but noooo... Sound

[Delta4Phoenix]

Die Auflösung des Schaltplans ist zu niedrig. Kannst du den Schaltplan bitte in höherer Auflösung nochmal hochladen?

[obulut2]

Schema isn't clear could you upload it again please?

[obulut2]

Merhaba, şema net değil.Yeniden yükler misiniz?

[TaranA3]

i would like to see a build video on building a radio using 1 pcs TDA1905 5W Audio Amplifier with Muting IC New DIP ST, • Digital Potentiometer - 10K, Audio Jack 3.5mm, ELEGOO 17 Values 1% Resistor Kit Assortment, 0 Ohm-1M Ohm (Pack of 525),Ceramic Capacitor Assortment Kit - Set of 600 Small Assorted Capacitors from 100 nF to 10 uF in a Box - Non-Polarized Disc Capacitor Component Set from Plusivo, Electrolytic Capacitor Assorted Assortment Box Kit,500PCS,Pair 62.5cm 4 Section Telescopic Stainless Steel AM FM Radio Antenna, microtivity IL612 5mm Diffused RGB Controllable LED, Common Anode (Pack of 12),MicroSD card module for Arduino and a Breadboard - Mini and the audio jack is used for when you want to listen to the radio via speaker

[TaranA3]

and how do you hook up the

Digital Potentiometer? like what connect to what