{"type":"product","schema_version":"1.0","item_id":"100949828369","canonical_url":"https://tw.bid.yahoo.com/item/100949828369","title":"►41◄HC-SR04超音波模組 3.3V-5V 避障模組 測距模組感測器 8051 AVR PIC Arduino","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-04-27T19:24:23.953Z","current_price":28,"original_price":null,"stock_status":"in_stock","available_quantity":996,"sold_quantity":3,"seller":{"id":"Y2849097376","name":"宇倉電子-全館(已含稅)開發票","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/9b293cc4-1734-4701-ae7c-7433657fbd3d.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/e3439165-6ceb-4086-a2e6-44903026c341.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null}],"description":"產品規格\n\n本模組性能穩定，測度距離精確。能和國外的SRF05,SRF02等超聲波測距模組相媲美。模組高精度，盲區（2cm）超近,穩定的測距是此產品成功走向市場的有力根據！\n\n主要技術參數：\n\n1.    使用電壓：DC3.3V~5V\n\n2.    靜態電流：小於2mA\n\n3.    電平輸出：高3.3V~5V  \n\n4.    電平輸出：低0V\n\n5.    感應角度：不大於15度 \n\n6.    探測距離：2cm-450cm\n\n7.    高精度：可達3mm\n\n \n\n接線方式，VCC、tr 控制端）、  echo（接收端）、 GND地線\n\n本產品使用方法：一個控制口發一個10US以上的高電平,就可以在接收口等待高電平輸出.一有輸出就可以開計時器計時,當此口變為低電平時就可以讀計時器的值,此時就為此次測距的時間,方可算出距離.如此不斷的週期測,就可以達到你移動測量的值了~~\n\n模組工作原理：\n\n(1)採用IO觸發測距，給至少10us的高電平信號;\n\n(2)模組自動發送8個40khz的方波，自動檢測是否有信號返回；\n\n(3)有信號返回，通過IO輸出一高電平，高電平持續的時間就是\n\n超聲波從發射到返回的時間．測試距離=(高電平時間*聲速(340M/S))/2; \n\n 本模組可提供全套測距程式：C51，PIC18F877,超聲波LCD1602顯示，超聲波LCD12864顯示，數碼管顯示，串口顯示等，測距參考程式。","shipping_methods":[{"name":"郵局掛號","fee":0,"currency":"TWD"},{"name":"7-ELEVEN取貨付款","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":"2092073513","category_name":"其他耗材","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":"2092073513","name":"其他耗材","url":"/tw/%E5%85%B6%E4%BB%96%E8%80%97%E6%9D%90-2092073513-category.html"}],"view_count":0,"watch_count":0}