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.
Квартиру в Петербурге затопило кипятком после обрушения потолка20:57
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3 月 1 日，海口市龙华区市场监管局约谈企业负责人，要求立即下架争议标语、全面整改，并督促其严格遵守广告法律法规与社会公序良俗。同日，椰树集团回应称相关内容为内部宣传材料，正着手处理，但未公布明确整改时间表，也未作出公开致歉。
对于怀旧玩家而言，优先选择 XAP 应用能获得更稳定的体验。。heLLoword翻译官方下载对此有专业解读
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