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  • Author Author: tariq.ahmad
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Raspberry Pi Pirate Radio -- Episode 355

 

Matthew relives some of his youthful hacking by dabbling in a little "pirate radio" broadcasting. In this video, he builds a handheld FM transmitter from some salvaged parts and a Raspberry Pi. The Pi uses a piece of software to convert wav files to frequency-modulated signals emitted from GPIO pin 7. To improve transmission quality and prevent undesired signals, Matthew also designs and builds a band pass filter and seals everything in a shielded case.

 

 

Product NameQuantity
Buy Kit
Raspberry Pi 1 A+1Buy Now
Adafruit Powerboost 10001Buy Now
Rechargeable Battery, 3.7 V, Lithium Polymer, 1200 mAh, Connector1Buy Now

Jumper Leads

2Buy Now
100pF ceramic capacitors3Buy Now
5mm green LED1Buy Now
Toggle switch1Buy Now
Metal project enclosure1Buy Now
Micro SD card1Buy Now
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  • Turns out this was a Covid project. Here is my pirate radio 2.0 (1.0 didn't include surface mount ports). Now to try and understand why certain playlist items, despite all been converted to .wav, present with much static/noise. Even merging the tracks into one file still plays with static/noise at specific points in the file. Any thoughts on cleaning this up? The 30cm micro-usb surface-mount extension also affected the quality of the LED; it's very dim, but plugged into the RPi directly it shines bright - wasn't expecting this impact by using that peripheral.

    image

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  • Turns out this was a Covid project. Here is my pirate radio 2.0 (1.0 didn't include surface mount ports). Now to try and understand why certain playlist items, despite all been converted to .wav, present with much static/noise. Even merging the tracks into one file still plays with static/noise at specific points in the file. Any thoughts on cleaning this up? The 30cm micro-usb surface-mount extension also affected the quality of the LED; it's very dim, but plugged into the RPi directly it shines bright - wasn't expecting this impact by using that peripheral.

    image

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