DIY portable FM transmitter #DIY

Thanks so much to Eduardo for sending in his project! View more info on his site here.

Stream your music to your entire home !!!

Zola Lab – Portable FM Transmitter


  • Lipo 3.7v
  • Sparkfun Circular LED
  • Adafruit Si4713 FM Radio Transmitter
  • 2 x Arduino Pro mini
  • Sparkfun Rotary Encoder
  • Catalex 4-Digits 7seg Display
  • Switch
  • Lipo Charger

On the top there is a: P2 audio input, a switch on/off, and a female micro-usb for charging Lipo.

Read more.

Featured Adafruit Products!


Adafruit Stereo FM Transmitter with RDS/RBDS Breakout – Si4713: Yaaar! Become your very own pirate radio station with this FM radio transmitter. This breakout board, based on the best-of-class Si4713, is an all-in-one stereo audio FM transmitter that can also transmit RDS/RBDS data!

Wire up to your favorite microcontroller (we suggest an Arduino) to the I2C data lines to set the transmit frequency and play line-level audio into the stereo headphone jack. Boom! Now you are the media. Listen using any FM receiver such as your car or pocket radio receiver – this is an easy way to transmit audio up to about 10 meters / 30 feet away. Read more.

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