{"type":"product","schema_version":"1.0","item_id":"100561824404","canonical_url":"https://tw.bid.yahoo.com/item/100561824404","title":"流水燈套件 NE555+CD4017流水燈 電子DIY散件 電子製作 電子套件 W177","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-04-29T15:42:21.100Z","current_price":17,"original_price":null,"stock_status":"in_stock","available_quantity":10,"sold_quantity":0,"seller":{"id":"Y2831399681","name":"。BUY360。電子零件","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/2d942037-8b5f-4b7d-8b21-f5f7db9b9082.jpg","role":"main","alt":"商品主圖","width":null,"height":null}],"description":"一套重量：6.7g \n\n套件名稱：NE555+CD4017流水燈套件/散件\n電源電壓：2.5－－14.5V\nPCB尺寸：5.4cm*2.1cm\nPCB厚度：1.6mm\n\n電路原理：\n\n本套件主要由時鐘發生電路和十進位計數器電路構成,由NE555為核心的自激多諧振蕩器,電源通過R2,R3,R4向電容C1充電,當C1剛開始充電時,NE555的2腳還處於低電平,故輸出端3腳呈高電平,當電源經R2,R3,R4向C1充電到2/3電源電壓時,輸出端3腳電平由高變低,NE555內部放電管導通,電容C1經R4,R3,NE555的7腳放電,直到C1兩端的電壓低於1/3電源電壓時,NE555的3腳電平又由低電平變為高電平.C1又再次充電,如此迴圈形成了振盪。充電時間為：0.695(R2+R3+R4)C1,　放電時間為：0.695(R4+R3)C1,調節R4可以控制振盪器的輸出頻率,NE555的時鐘振盪信號不斷的加在CD4017的14腳，在CD4017的10個輸出端上接有10只LED,當CD4017的10個輸出端在時鐘信號作用下輪流產生高電平，則D1--D10依次被點亮，從而形成流水燈效果。\n調節R4即可調節LED燈的流動速度。\n\n散件元件清單：\n\n \n\n元件名稱              數量\nPCB板                   1\n2P彎排針              1\n1UF電容               2\n3mmLED 紅        10\n1K電阻                10\n2.2K電阻            1\n10K電阻             1\n50K蘭白電位器  1\nNE555               1\nCD4017             1","shipping_methods":[{"name":"7-ELEVEN取貨付款","fee":0,"currency":"TWD"},{"name":"郵局掛號","fee":0,"currency":"TWD"},{"name":"離島配送","fee":0,"currency":"TWD"},{"name":"萊爾富取貨付款","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","信用卡一次付清","萊爾富取貨付款","7-ELEVEN取貨付款"],"category_id":"2092104064","category_name":"電子零件/材料","breadcrumb":[{"id":"23336","name":"電腦、平板與周邊","url":"/tw/%E9%9B%BB%E8%85%A6%E3%80%81%E5%B9%B3%E6%9D%BF%E8%88%87%E5%91%A8%E9%82%8A-23336-category.html"},{"id":"2092072621","name":"耗材與線材","url":"/tw/%E8%80%97%E6%9D%90%E8%88%87%E7%B7%9A%E6%9D%90-2092072621-category.html"},{"id":"2092104064","name":"電子零件/材料","url":"/tw/%E9%9B%BB%E5%AD%90%E9%9B%B6%E4%BB%B6-%E6%9D%90%E6%96%99-2092104064-category.html"}],"view_count":0,"watch_count":1}