{
    "info": {
        "author": "Cameron Little",
        "author_email": "cameron@camlittle.com",
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        "description": "# RGB LED Driver\n\nThis software can be used to drive an analog RGB LED strip using a raspberry pi\nand Adafruit's [16-channel 12-bit PWM/Servo Driver - PCA9685](https://raw2.github.com/apexskier/rgbLED/master/LED_Strip_bb.png):\n\n## The Circuit\n\nHere's the basic idea:\n\n  - Hook up the pi to the PCA9685 breakout board using the I2C connections.\n  - Connect the pi's 3.3V output to VCC on the PCA9685 breakout board. Leave V+\n    floating.\n  - Follow this tutorial for the RGB LED strips:\n    http://learn.adafruit.com/rgb-led-strips/usage\n      - I used N-channel MOSFETs - three of them, one for each channel\n      - Connect the +12V from the LED strip to an external power supply (do NOT\n        use your pi for this!)\n      - Connect the ground side of the power supply to the pi ground\n      - Instead of using the PWM outputs from the arduino, we'll use the PWM\n        outputs from the PCA9685.\n      - Connect up the PWM output 0 to the MOSFET with the red wire from the\n        LED strip.  Output 1 goes to green, output 2 goes to blue.\n\n![Breadboard image](https://raw2.github.com/apexskier/rgbLED/master/LED_Strip_bb.png)\n\n\n## Dependencies\n\n- [WiringPi2 Python](https://github.com/WiringPi/WiringPi2-Python)\n\n## Usage\n\nThis program is designed to be included as a python module, but also has some\ncommand line options. It, or any python code importing it, must be run as root\n(sudo), because of the I2C interface.\n\n### CLI Options\n\n- `-c [hex color]` - Sets the led strip to the color specified.\n- `-t` - Runs a test of a couple things. Use as a demo.\n- `-o` - Turn the led strip off after other actions.\n\n### As a module\n\n```\nfrom rgbDriver import RGBDriver\nrgb_driver = RGBDriver()\n```\n\nMethods in the module use tuples to describe rgb colors: `(red_value,\ngreen_value, blue_value)`.  Each color value can range between 0 and 4095, due\nto the PWM driver's 12 bit resolution. The `convert_eight_to_twelve_bit()`\nmethod can convert a standard 0 to 255 color value to this scale.\n\nTo describe a color you can use the string representation of a hex color code\nand the method `hex_to_rgb()` to convert it or `set_hex_color()` and\n`to_hex_color()` to use it directly.\n\nThe driver keeps a property `current_color` that stores the led strip's current\ncolor (in theory). This is used internally to smoothly transition from one\ncolor to another.\n\nTwo types of color setting methods exist. `to_...` will transition a color\nchange over a set time. The last argument of any `to_...` method is that\ntransition time in milliseconds (default 300ms). `set_...` will set a color\nimmediately.\n\nCurrently supported methods are:\n\n- `to_rgb(rgb, fade=DEFAULT)`, `set_rgb(rgb)`\n- `to_rand(r_range=(0, 4095), g_range=(0, 4095), b_range=(0, 4095), fade=DEFAULT)`, `set_rand(r_range=(0, 4095), g_range=(0, 4095), b_range=(0, 4095))`\n- `to_hex_color(color, fade=DEFAULT)`, `set_hex_color(color)`\n\n\n## TODO\n\n- I've got a basic single color led strip and an extra N-channel MOSFET that I\n  want to control.\n- Set current_color var after setting up pwm.\n\n",
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        "name": "ledDriver",
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        "summary": "Python LED light strip and PWM drivers using the WiringPi2 library.",
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