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Total: $124.80 (not including shipping, about $30)
Total: $124.80 (not including shipping, about $30)
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Item PID Price Quantity Total
Item PID Price Quantity Total
[https://www.adafruit.com/product/3058 Raspberry Pi 3 Model B Starter Pack - Includes a Raspberry Pi 3] 3058 $84.95 1 $84.95
[https://www.adafruit.com/product/3058 Raspberry Pi 3 Model B Starter Pack - Includes a Raspberry Pi 3] 3058 $84.95 1 $84.95
[https://www.adafruit.com/product/2336 Brass M2.5 Standoffs for Pi HATs - Black Plated - Pack of 2] 2336 $0.75 2 $1.50
[https://www.adafruit.com/product/2336 Brass M2.5 Standoffs for Pi HATs - Black Plated - Pack of 2] 2336 $0.75 2 $1.50
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==Software==
==Software==
[https://github.com/adafruit/Adafruit_Python_MPR121 Adafruit Python library]
[https://github.com/adafruit/Adafruit_Python_MPR121 Adafruit Python library]
===Patch for I2===
===Enable I2C===
Be sure to enable i2c!
raspberry menu -> Preferences -> Raspberry Pi Configuration -> Interfaces => enable I2C
see [https://learn.adafruit.com/adafruits-raspberry-pi-lesson-4-gpio-setup/configuring-i2c Configuring I2C]
===Patch for I2C===
"the latest Raspbian Jessie and Stretch releases have an updated I2C driver that isn't compatible with how this library enables repeated I2C start bits.
"the latest Raspbian Jessie and Stretch releases have an updated I2C driver that isn't compatible with how this library enables repeated I2C start bits.
sudo apt-get update
sudo apt-get update
sudo apt-get install build-essential python-dev python-smbus python-pip git
sudo apt-get install build-essential python-dev python-smbus python-pip git
===Install Python MPR121 Library===
cd ~
git clone https://github.com/adafruit/Adafruit_Python_MPR121.git
===Run Test Software===
cd Adafruit_Python_MPR121
sudo python setup.py install
cd examples
sudo python simpletest.py