DF-LT V2.0 Users Manual

Transcription

1 DF-LT V2.0 Users Manual SKU: SEN0016 Page 1

2 Cautions! A. DO NOT POWER the module before reading this manual. Any incorrect connection of the sensor may cause it permanent damage. B. This product DO NOT has water proofing. Please do not use it under humid environment or outdoors. Page 2

3 Summary This module is especially designed for robot. You are welcome to use this sensor for gray detection, encoders and other applications. The design concept for this module is to make it an independent module and free the main CPU. DF-LTV2.0 is designed to have 6 groups of detectors for various purposes. Line tracker can help the robots for tracking white line or black line, detecting black lines in white background and white lines in black background, which is absolutely necessary for line following robots. Specification Power:5V Current: <20mA Working Temperature: -10 ~ +70 Celsius degree Output Interface: Male Pin Header (GND/1/2/3/VCC/4/5/6) Output Level: TTL (black line for low level output, white line for high level output) Size: 20mm x 60 mm Control board mounting holes distance: 52mm Weight: 30g Page 3

4 Pin Definition Figure 1 DF-LT V2.0 Sensor Pinout GND: -Power Input VCC:+Power Input 1: J1 Infrared Sensor Ouptut 4: J4 Infrared Sensor Ouptut 2: J2 Infrared Sensor Ouptut 5: J5 Infrared Sensor Ouptut 3:J3 Infrared Sensor Ouptut 6: J6 Infrared Sensor Ouptut Figure 2 DF-LT V2.0 Control Board Figure 3 DF-LT V2.0 Infrared sensor Figure 4 DF-LT V2.0 Sensor Circuit Figure 5 Infrared sensor Pin Out (component side) G:Ground 5V:+Power S:Signal input Notice: The sensor is connected with control board via 3 F/F Jumper cables. Page 4

5 Test Module 1. Draw a black bold line with length 5cm, width 2cm on a white paper, or stick it onto the white paper by a black electronic tape. 2. Apply 5V power on the control board and connect the detector according to Figure 1-3, do not plug reversely. 3. Aiming the J1 infrared sensor at black line with 1cm in height. Corresponding port will output LOW when indicator light 1 goes off. 4. Same principle, Aiming J1 infrared sensor at the white paper with 1cm in height, Corresponding port will output HIGH when indicator light 1 gets on. 5. Other sensor test methods are the same as above. Applications 1. Mounting the module into the proper location of the robot. 2. There are 6 groups of sensor modules; use it as needed. Make sure the sensor has 1cm height over the ground or lines. 3. Possible configuration for single line tracking As the figure shows above, three sensors are mounted at a triangle shape. When the robot moves straight away, Sensor 13 output HIGH, Sensor 2 outputs LOW ; If the robot moves to the left side, Sensor 2 leaves the black line, and will output HIGH in Page 5

6 this case, Sensor 3 moves into black area and will outputs LOW. For same principle, if the robot moves to the right side, Sensor 2 moves out the black area, and will output HIGH, Sensor 1 moves into black area and will output LOW. The rest infrared sensors could be used for encoding or gray detection. 4. Possible configuration for cross line tracking (the same as above) 5. Possible configuration for T -shaped line tracking Complex maps can always be the challenge in Line-Tracking Competition as the above figure shows. Traditional line tracking sensor could barely accomplish the task if there is a T-shaped map with ruptures. For that matter we designed this six sensors line tracking kit upon which the sensors could be installed in any position of the robots. Please refer the installation guide as the above figure shows to get avoid getting into the wrong track. Hope the examples we offered above are helpful. Please always be flexible for your stratagem by using different advantages of modules. Page 6

7 Troubleshoot: Please contact our technician for support Design by MICKEY Line Tracker Copyright DFRobot Robotics Technology Limited Page 7

8 Revision Date Comments March 2010 First Release Page 8