Raspberry pi FM in PHP

How to run pifm_php with docker ?(May work on raspberry pi 1,2,3 - not tested)

GPIO=4

#build
docker buildx create --use --name insecure-builder --buildkitd-flags '--allow-insecure-entitlement security.insecure'

DOCKER_BUILDKIT=1 docker buildx build --allow security.insecure --load -t pifm -f pifm.Dockerfile .

#run
docker run -d -p 8001:80 --privileged pifm_php

Raspberry Pi 4 (https://github.com/markondej/fm_transmitter#raspberry-pi-4)

GPIO=21 (Works only for freqency below 93Mhz)

#build
docker buildx create --use --name insecure-builder --buildkitd-flags '--allow-insecure-entitlement security.insecure'

DOCKER_BUILDKIT=1 docker buildx build --allow security.insecure --load -t fm_transmitter -f fm_transmitter.Dockerfile .

#run
echo "performance"| sudo tee /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

docker run -d -p 8001:80 --privileged fm_transmitter

config.php

"allowedFiles"=>array("wav")

"radio"=>"/var/www/html/pi_fm_rds"

"brand_name"=>"pifm_php"

Warning and Disclaimer

pifm_php is an experimental program, designed only for experimentation. It is in no way intended to become a personal media center or a tool to operate a radio station, or even broadcast sound to one's own stereo system.

In most countries, transmitting radio waves without a state-issued licence specific to the transmission modalities (frequency, power, bandwidth, etc.) is illegal.

Refrences:

1. https://github.com/ChristopheJacquet/PiFmRds
2. ChristopheJacquet/PiFmRds#134 - Raspberrpi 4 PiFmRds issue
3. https://github.com/markondej/fm_transmitter#raspberry-pi-4 - Raspberrpi 4 workaround
4. moby/moby#1916