（作者为本报政治文化部记者张烁）
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。WPS下载最新地址是该领域的重要参考
马道头村，广西钦州市灵山县旧州镇石桥村的一个自然村屯。昔日，群山环抱，鲜为人知；如今，因平陆运河第一级枢纽——马道枢纽在此建设，有了些名气。
Последние новости
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.