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epall/agent.nut

Created February 23, 2013 21:49
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Raw
agent.nut
page <- @"
<html>
<body>
<form method=""POST"">
<input type=""submit"" value=""Up"" name=""action"">
<input type=""submit"" value=""Down"" name=""action"">
</form>
</body>
</html>
"
http.onrequest(function(req, res) {
if(req.method == "POST") {
local body = http.urldecode(req.body);
if(body.action == "Up") {
device.send("rgb", [0, 255, 0]);
} else if(body.action == "Down") {
device.send("rgb", [255, 0, 0]);
}
server.log(req.body);
}
res.send(200, page);
});
Raw
device.nut
// Takes in a 0.0-1.0 [r,g,b] tuple and writes it to the LED
//I2C Addresses
const i2c_ioexp = 0x7C;
const i2c_temp = 0x98;
const i2c_als = 0xE8;
const i2c_accel = 0x38;
//----------------------------------------
//-- Configure I2C
//----------------------------------------
hardware.configure(I2C_89);
local i2c = hardware.i2c89;
local led_r = 0;
local led_g = 0;
local led_b = 0;
//----------------------------------------
//-- IO Expander Functions
//----------------------------------------
local function ioexp_read(addr) {
local result = i2c.read(i2c_ioexp, format("%c", addr), 1);
if (result == null) {
server.log("i2c read fail");
return -1;
} else return result[0];
}
local function ioexp_write(addr, data) {
i2c.write(i2c_ioexp, format("%c%c",addr, data));
}
local function ioexp_writebit(addr, bitn, level) {
// read modify write
local reg = ioexp_read(addr);
reg = (level==0)?(reg&~(1<<bitn)) : (reg | (1<<bitn));
ioexp_write(addr, reg)
}
local function ioexp_modify_write(addr, data, mask) {
local reg = ioexp_read(addr);
reg = (reg & ~mask) | (data & mask);
ioexp_write(addr, reg);
}
local function ioexp_setpin(gpio, level) {
ioexp_writebit(gpio>=8?0x10:0x11, gpio&7, level?1:0);
}
local function ioexp_setdir(gpio, output) {
ioexp_writebit(gpio>=8?0x0e:0x0f, gpio&7, output?0:1);
}
local function ioexp_setpullup(gpio, enable) {
ioexp_writebit(gpio>=8?0x06:0x07, gpio&7, enable);
}
local function ioexp_setirqmask(gpio, enable) {
ioexp_writebit(gpio>=8?0x12:0x13, gpio&7, enable);
}
local function ioexp_setirqedge(gpio, rising, falling) {
local addr = 0x17 - (gpio>>2);
local mask = 0x03 << ((gpio&3)<<1);
local data = (2*falling + rising) << ((gpio&3)<<1);
ioexp_modify_write(addr, data, mask);
}
local function ioexp_clearirq(gpio) {
ioexp_writebit(gpio>=8?0x18:0x19, gpio&7, 1);
}
local function ioexp_readpin(gpio) {
return (ioexp_read(gpio>=8?0x10:0x11)&(1<<(gpio&7)))?1:0;
}
local function ioexp_setled(gpio, led) {
ioexp_writebit(gpio>=8?0x20:0x21, gpio&7, led);
}
local function ioexp_update_leds(r,g,b) {
if(r != null)
led_r = r;
if(g != null)
led_g = g;
if(b != null)
led_b = b;
ioexp_write(0x3b, led_g);
ioexp_write(0x40, led_b);
ioexp_write(0x45, led_r);
}
//LED Driver Enable
ioexp_modify_write(0x01, 0xE0, 0xFF);
ioexp_modify_write(0x0f, 0xE0, 0x00);
ioexp_modify_write(0x0b, 0xE0, 0xFF);
ioexp_modify_write(0x21, 0xE0, 0xFF);
ioexp_write(0x1e, 0x50);
ioexp_write(0x1f, 0x10);
ioexp_setpin(5, 0);
ioexp_setpin(6, 0);
ioexp_setpin(7, 0);
ioexp_update_leds(50,40,0);
agent.on("rgb", function(rgb) {
ioexp_write(0x3b, (rgb[0]));
ioexp_write(0x40, (rgb[1]));
ioexp_write(0x45, (rgb[2]));
});
imp.configure("RGB", [], []);
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