Grove - Thumb Joystick Release date： 9/20/2015 Version： 1.0 Wiki: http://www.seeedstudio.com/wiki/Grove_-_Thumb_Joystick Bazaar: http://www.seeedstudio.com/depot/Grove-Thumb-Joystick-p-935.
Document Revision History Revision Date Author Description 1.0 Sep 21, 2015 Victor.
Contents Document Revision History ···································································································2 1. Introduction ···················································································································2 2. Features··························································································································3 3.
Disclaimer For physical injuries and possessions loss caused by those reasons which are not related to product quality, such as operating without following manual guide, natural disasters or force majeure, we take no responsibility for that. Under the supervision of Seeed Technology Inc., this manual has been compiled and published which covered the latest product description and specification. The content of this manual is subject to change without notice.
1. Introduction Grove - Thumb Joystick is a Grove compatible module which is very similar to the 'analog' joystick on PS2 (PlayStation 2) controllers. The X and Y axes are two ~10k potentiometers which control 2D movement by generating analog signals. The joystick also has a push button that could be used for special applications. When the module is in working mode, it will output two analog values, representing two directions.
2. Features Grove Interface 5V/3.
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4. Specifications Item Min Typical Max Unit Working Voltage 4.75 5.0 5.25 V Output Analog Value （X coordinate） 206 516 798 \ Output Analog Value （Y coordinate） 203 507 797 \ 5
5. Usage 5.1 With Arduino The Grove - Thumb Joystick is an analog device that outputs analog signal ranging from 0 to 1023. That requires us to use the analog port of Arduino to take the readings. 1. Connect the module to the A0/A1 of Grove - Basic Shield using the 4-pin grove cable. 2. Plug the Grove - Basic Shield into Arduino. 3. Connect Arduino to PC by using a USB cable. 4. Copy and paste code below to a new Arduino sketch. Please click here if you do not know how to upload.
int sensorValue1 = analogRead(A0); int sensorValue2 = analogRead(A1); Serial.print("The X and Y coordinate is:"); Serial.print(sensorValue1, DEC); Serial.print(","); Serial.println(sensorValue2, DEC); Serial.println(" "); delay(200); 5. You can check the values of the output analog signals by opening the Serial Monitor. The output value from the analog port of Arduino can be converted to the corresponding resistance using the formula:R=(float)(1023-sensorValue)*10/sensorValue. 5.2 With Raspberry Pi 1.
nano grove_slide_potentiometer.
try: # Get X/Y coordinates x = grovepi.analogRead(xPin) y = grovepi.analogRead(yPin) # Calculate X/Y resistance Rx = (float)(1023 - x) * 10 / x Ry = (float)(1023 - y) * 10 / y # Was a click detected on the X axis? click = 1 if x >= 1020 else 0 print "x =", x, " y =", y, " Rx =", Rx, " Ry =", Ry, " click =", click time.sleep(.5) except IOError: print "Error"} 5. Run the demo. sudo python grove_thumb_joystick.
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7. Support Ask questions on Seeed Forum.
