Fangrui Product Details Three Color Led Status Indication Is Convenient To Use The Candlelight Usb To Can Module Is Planted Based On The Open Source Project. The Open Source Host Computer Can Be Used To Analyze The Can Bus Protocol. 1. Support Open Source Can Protocol Analysis Software 2. The Car Specification Class Tja1051t/3 Chip Is Adopted, And The Theoretical Can Data Rate Is Up To 1mbit/s 3. Three Color Led Status Indication. 4. Input Voltage:5v (usb Power Supply) Instructions: 1. Pin Description - One Side Of The Chip Is Defined As The Front Side, And The First Leg At The Lower Right Corner Of The Front Side Is One Leg. The X Is Empty Pin, And The 2 Pin Is Can_ 50. Pin 3 Is Gnd. Can On The Back Corresponds To Gnd_ H. 2. After Inserting The Can Module, The Can Device Appears In The Device Manager. 3. Connect The Can Of The Downloader_ L And Can_ Connect The H Pin To The Can Bus And Turn On The Upper Computer. After The Connection Is Successful, The Tx And Rx Lights On The Can Module Light Up, And The Upper Computer Can B