Electric Imp code to go with Electric_Imp_Example repository. Passes RGB json object to Electric_Imp_Example API.

RGB Imp

local redPot = hardware.pin5;
local greenPot = hardware.pin7;
local bluePot = hardware.pin8;

local red = 0;
local green = 0;
local blue = 0;

local redPort = OutputPort("red");
local greenPort = OutputPort("green");
local bluePort = OutputPort("blue");
local jsonOutputPort = OutputPort("json");

function readPots()
{
    red = 255 - (redPot.read() / 65535.0 * 255.0).tointeger();
    green = 255 - (greenPot.read() / 65535.0 * 255.0).tointeger();
    blue = 255 - (bluePot.read() / 65535.0 * 255.0).tointeger();
    
    redPort.set(red);
    greenPort.set(green);
    bluePort.set(blue);
    jsonOutputPort.set("{ 'r':" + red + ", 'g':" + green + ", 'b':" + blue + " }");
    
    imp.wakeup(0.25, readPots);
}

hardware.pin5.configure(ANALOG_IN);
hardware.pin7.configure(ANALOG_IN);
hardware.pin8.configure(ANALOG_IN);

imp.configure("RGB Imp", [], [redPort, greenPort, bluePort, jsonOutputPort]);

readPots();