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<!--
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---
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name: Pi Cap
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class: board
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type: touch, capacitive, audio
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formfactor: Custom
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manufacturer: Bare Conductive
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description: Add capacitive touch, distance sensing and high quality audio to the Raspberry Pi
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url: https://www.bareconductive.com/shop/pi-cap/
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buy: https://www.bareconductive.com/shop/pi-cap/
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image: 'pi-cap.png'
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pincount: 40
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eeprom: no
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power:
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'1':
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ground:
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'6':
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'9':
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'14':
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'20':
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'25':
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'30':
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'34':
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'39':
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pin:
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'3':
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mode: i2c
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'5':
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mode: i2c
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'7':
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name: Button
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mode: input
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active: low
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'11'
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name: IRQ
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mode: input
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active: low
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'29'
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name: Green LED
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mode: output
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active: low
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'31'
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name: Red LED
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mode: output
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active: low
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'32'
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name: PWM0
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mode: output
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active: high
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'33'
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name: PWM1
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mode: output
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active: high
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'37'
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name: Blue LED
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mode: output
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active:low
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i2c:
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'0x5C':
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name: MPR121
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device: MPR121
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-->
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# Pi-Cap
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The Pi Cap adds precise capacitive touch, distance sensing and high quality audio to any Raspberry Pi with a 40 pin GPIO connector. The 12 electrodes can be connected to anything conductive to create a touch or proximity interface. Additionally the Pi Cap includes a user-programmable RGB LED and a multi-function button.
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The Pi Cap software is in the official Raspbian repository, so to install the software simply enter:
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```bash
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sudo apt-get update
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sudo apt-get dist-upgrade
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```
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Reboot the Raspberry Pi and enter:
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```bash
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sudo apt-get install picap
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picap-setup
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```
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The Pi Cap provides 7 digital I/O pins, brought out from the 40-way Raspberry Pi GPIO connector – pins 12, 13, 15, 16, 18, 22, 36. The Pi Cap package contains plenty of code examples written in C++, Python and Node.js that are supported by the Pi Cap library.
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