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Electronic dice DIY kit whose seven LEDs show dice pips and stop at random
555 multivibrator | CD4017 decade counter | DC 5V or three 1.5V cells
C1 sets the delay time and C2 sets the cycling speed
滿千免運優惠(限郵寄和超商純取貨) on order
本賣場無實體店面,無提供自取服務,敬請見諒。 on order
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本電路由555組成的多諧振盪器和CD4017十進制計數器/脈衝分配器組成。7顆發光二極管模擬骰子的點數,當按下啟動鍵1秒以上,發光二極管安骰子的不同點數高速循環點亮,幾秒鐘後循環速度越來 越慢並最終隨機停止於某個點上。C1的數值決定延遲時間,C2的數值決定循環速度。電源供電電壓為直流5V,也可以採用3節1.5V電池供電。