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Capacitive touch wheel

This is a capacitive touch wheel could be used as a simple motion/swipe input to your microcontroller.

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This is a touch wheel that could be connected to a microcontroller and be used as a input device. There is a big version with eight capacitive touch pads and a small one with four. The small one fits into a square inch but it doesn't have a button.

This schematic of the eight pad version shows the working of the touch wheel it is very simple and is basically the same thing eight times. The capacitor in the schematic is the human body to the ground.

The four pad version ofcourse works the same but it is only one side of the schematic.

  • 1 × Atmega328p Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
  • 1 × 16mHz crystal
  • 2 × 22pf ceramic capacitor
  • 8 × 1M Ohm 0603 resistor
  • 8 × 10M Ohm 1203 resistor

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alpha_ninja wrote 12/07/2015 at 01:29 point

Just a friendly reminder to please upload your design documents by 23:59 UTC on Dec 8, 2015 to be in the running for #The Square Inch Project. Your gerbers and BOM are here, but your source files are missing!

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alpha_ninja wrote 12/02/2015 at 00:43 point

This is your one-week reminder to upload design documents: https://hackaday.io/project/7813-the-square-inch-project/log/28566-design-deadline

  Are you sure? yes | no

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