Arduino 團購中買了 DFRobot LCD Keypad Shield, 取貨後即試玩. 但沒有跟原理圖, 只好上網找. DFRobot website 只說 LCD 用了 digital PIN 4, 5, 6 ...

雖然冇人會晌 LCD shield 上便再插其他 shield (插左就睇唔到 LCD 啦.....) 但如果唔係咁樣整一整, 點再接其他 sensors 留意, 就算咁樣整左之後, 因為 LCD shield 係闊過晒其他 shields 的,所以唔好諗住可以再 ...

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When it comes to performance, there's a world of difference between the Raspberry Pi and Arduino. The former, after all, is technically a fully functional computer that can run games, word processors, ...