12 lines
1.2 KiB
Text
12 lines
1.2 KiB
Text
This code can be used on the LC and 4.0 but they need a level translator if connected to a 5 volt touchpad.
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The Touchpad_3p2.ino code sets up the touchpad to be in remote mode so that the Teensy can poll it after finishing the keyboard scan.
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The Touchpad_Stream_mode.ino code sets up the touchpad to be in Stream Mode so it sends data when ever it detects finger movement.
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ADB_Trackball.ino will read an Apple Data Bus trackball and send the results as USB mouse commands.
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I2C_Touchpad.ino is an example routine to read a basic touchpad over an I2C bus and send the results as USB mouse commands.
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Read the comments at the beginning of the code to see the address and register numbers for this example touchpad.
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Azoteq_TP.ino uses the Teensy I2C pins to read an Azoteq TPS65-201A-S touchpad and send the relative X/Y movement
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and the finger-tap as USB mouse commands. For more information on the registers, read the Azoteq data sheet at:
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https://www.azoteq.com/images/stories/pdf/iqs5xx-b000_trackpad_datasheet.pdf
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For a complete description of how to interface a Teensy to a touchpad, read my touchpad guide at:
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https://www.hackster.io/frank-adams/laptop-touchpad-conversion-to-usb-d70519
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