Years ago, people figured out Raspberry Pi’s can accidentally double as FM radio transmitters without a need for any radio front-end (if we don’t count a single jumper wire working as an antenna). They achieved this by tying a GPIO pin to a software-controlled clock around 100 MHz to modulate audio. This created a low-powered FM radio transmitter. Due to the pin producing a square wave instead of a neat sine wave, it also emitted weaker harmonics at 300MHz, 500MHz, etc., but any basic FM radio could pick up the audio. I wondered if a similar feat could be achieved by much less powerful Raspberry Pi Pico microcontrollers.
2026-02-28 00:00:00:03014272810http://paper.people.com.cn/rmrb/pc/content/202602/28/content_30142728.htmlhttp://paper.people.com.cn/rmrb/pad/content/202602/28/content_30142728.html11921 米兰冬残奥会中国体育代表团成立
。Line官方版本下载对此有专业解读
Former state Liberal MP begins his evidence after pleading not guilty to 10 charges for various sexual acts
В Домодедово задержали иностранца с куском метеорита в чемодане14:57