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https://hanzama.x0.to/2020/05/27/when-i-switched-the-security-camera-atom-cam-to-the-firmware-it-turned-out-to-be-a-web-camera-internet-watch/
格安ネットカメラ「ATOM Cam」のファームウェアを書き換えたらWebカメラになった!(INTERNET Watch)