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ドスパラ各店で名刺サイズのLED表示パネル「USB Rechargable LED Scrolling Badge」が販売中だ。PCとUSBで接続することで日本語や英語などをスクロール表示 ...
Hi. I picked up an LED signboard at a radio rally the other day, it appears to work to some extent, and has a serial (RS-232) connection for programming it.But I can't find anything out about the ...