Breaking News
RFK Jr. advances to full Senate vote to be HHS secretary
I've Never Seen Anything Like It! (Spent The Day Reading The 'USAID' Payments Log - WTF
Sitting down? The US Mint's new 'J6 coin' will make your blood boil…
Turns out the 'Deep State' used USAID to OUST Bolsonaro from Brazil…
Top Tech News
Retro Spaceplane aces test for space station cargo missions
Old civilizations weren't destroyed by accident.
Helion has $1 billion and 3 years to figure out fusion-powered energy
Electric spacecraft propulsion may soon take a leap, thanks to new supercomputer
'Son of Concorde' supersonic jet breaks sound barrier... here's how long it'll take
Self-balancing, omnidirectional bike with balls for wheels
$120 Raspberry Pi5 Can Run 14 Billion Parameter LLM Models … Slowly
Super Sub thrills with high speed, sharp turns and steep climbs
23 airports controlled from one locale as small airfields meet the future
Affordable housing project was 3D printed in just 12 days
How to turn a Raspberry Pi into an FM radio transmitter
The Raspberry Pi (RPi) is an amazing computing platform; it's small, it's cheap, it's fast, and it's remarkably versatile. So versatile in fact that with practically no additional hardware you can turn one into an FM transmitter …
What you'll need is an Raspberry Pi 1 or 2 running Raspbian, and, optionally, a short length of wire as an antenna. For software you'll need one of the following:
PiFm - written in 2012 by Oliver Mattos and Oskar Weigl of the Imperial College Robotics Society PiFm consists of a Python program that loads an executable written in C which does the heavy lifting. Can transmit both mono and stereo audio. Works on all Raspberry Pi 1s.
PiStation - written by Cody J Heiser in mid' 2015, is more sophisticated but via an installer, downloads PiFm and uses that code to drive the hardware. Works on all Raspberry Pi 1s.
PiFMPlay - written by Mikael Jakhelln in August 2014, also uses PiFm. Works on all Raspberry Pi 1s.
fm_transmitter - written by Marcin Kondej in July 2015, is completely written in C and works on both the Raspberry Pi 1 and Raspberry Pi 2. The sound quality is apparently not as good as the PiFm-based programs and while it can read both mono and stereo audio files can only transmit mono.
Pi-FM-RDS by Ginkgo23 originally written in 2012 and updated a couple of months ago to support the Raspberry Pi 2, adds RDS (Radio Data System) generated in real time.
According to the PiFm documentation, the RPi FM transmitter is fairly powerful delivering a signal that can be detected at ranges of 50 meters or more. The RF signal is output on GPIO 4 which is pin 7 on both the 26-pin header on the Raspberry Pi 1A and 1B, and the 40-pin header on the Raspberry 1A+, 1B+ and 2B boards.