{"type":"product","schema_version":"1.0","item_id":"100067040222","canonical_url":"https://tw.bid.yahoo.com/item/100067040222","title":"《德源科技》r)Jrk 21v3 馬達控制器 USB Motor Controller with Feedback","subtitle":"(Fully Assembled) PI1394","condition":"全新品","currency":"TWD","observed_at":"2026-05-27T21:44:36.007Z","current_price":2628,"original_price":null,"stock_status":"low_stock","available_quantity":2,"sold_quantity":0,"seller":{"id":"Y9895025221","name":"Deryuan 德源科技","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/2486fae0-343f-4a5b-b0e4-590cf2e8378a.jpg","role":"main","alt":"商品主圖","width":null,"height":null}],"description":"如需詳細規格請發mail詢問或是提問並可到賣方關於我詳閱\n\n下標前請注意： (請先打電話連絡或提問，請見賣方關於我中有聯絡方式） \n\n1．可以開發票  \n\n(PS:如合併結帳多項產品或是加購附件及開發票者,使用全家取貨付款的,結標後請自行修改金額)\n\n2．可面交，現貨供應 \n\n3．下標後請填寫下列資料 \n\n1.帳號:\n  2.購買物品名稱:(如有很多型號時請註明清楚,謝謝)\n  3.地址:\n  4.郵遞區號:\n  5.郵款金額:\n  6.姓名:\n  7.帳號後5碼:\n  8.連絡電話:\n\n===================================================================\n\nid=6094\n\n※本產品原廠代理從國外進口，有些交期較長，下訂前請詢問！\n\nThe jrk 21v3 motor controller is a highly configurable brushed DC motor controller that supports four interface modes: USB, logic-level serial, analog voltage, and hobby radio control (RC). The controller can be used with feedback for closed-loop speed or position control, or it can be used without feedback as an open-loop speed control. The continuous output current is approximately 3 A in the recommended operating range of 8–28 V, with derated performance down to 5 V and transient protection to 40 V. The board ships with connectors installed as shown (no soldering required).\n\n jrk 21v3是一個多功能且具有encoder回授控制的DC 有刷馬達控制器，它支援四種控制模式包括USB、TTL串列訊號、類比電壓以及RC控制訊號。這個控制器可以做閉迴路(close-loop)的位置與速度的控制，當然也可用做開回路(open-loop)的馬達控制。\n輸出功能，在連續輸出方面可達最大3A (峰值電流可承受5A)，輸入電壓在5~28V，適合小型DC 有刷馬達。在回授訊號方面，可接受類比電壓(0~5V) 或是脈衝式(計數器)的位置回授裝置之訊號，行成一個閉迴路電路的馬達控制器。\n\nOverview \n\nUSB介面控制具有全雙工，TTL level的串列傳輸界面\n具有電流保護與限制\n可以直接接RC 遙控器或是RC servo controller\n可以直接用0-5V的類比電壓或是搖桿來控制\n\nThe jrk 21v3 is a versatile, general-purpose motor controller that supports a variety of interfaces, including USB. The broad operating range from 5 V to 28 V and continuous output current of 3 A (5 A peak) allow this board to control most small DC brushed motors. Analog voltage and tachometer (frequency) feedback options allow quick implementation of closed-loop servo systems, and a free configuration utility (for Windows) allows easy calibration and configuration through the USB port.\n\nKey improvements over competing products and earlier Pololu motor controllers with feedback include:\n\n- USB connectivity with emulated serial (COM) port allows direct motor control from a PC.\n- Ultrasonic PWM...","shipping_methods":[{"name":"郵局掛號","fee":0,"currency":"TWD"},{"name":"7-ELEVEN取貨付款","fee":0,"currency":"TWD"},{"name":"7-ELEVEN取貨不付款","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","7-ELEVEN取貨付款"],"category_id":"2092072544","category_name":"其他電腦周邊","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":"2092072522","name":"電腦/筆電周邊","url":"/tw/%E9%9B%BB%E8%85%A6-%E7%AD%86%E9%9B%BB%E5%91%A8%E9%82%8A-2092072522-category.html"},{"id":"2092072544","name":"其他電腦周邊","url":"/tw/%E5%85%B6%E4%BB%96%E9%9B%BB%E8%85%A6%E5%91%A8%E9%82%8A-2092072544-category.html"}],"view_count":0,"watch_count":0}