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@cat-haines
Last active December 20, 2015 19:59
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This GIST has four files and demonstrates how data can be passed from one imp to another using HTTP requests, and HTTP request handlers.
const otherAgentUrl = "http://agent.electricimp.com/YourOtherAgentID";
// create a handler for the "button" message from the device
device.on("button", function(state) {
local url = otherAgentUrl + "?led=" + state;
server.log("sending request to " + url);
// create the request
local request = http.get(url);
// send the request
request.sendsync();
});
server.log("Copy this URL to your other agent (otherAgentURL): " + http.agenturl());
server.log("Turn LED on by calling: " + http.agenturl() + "?led=1");
server.log("Turn LED off by calling: " + http.agenturl() + "?led=0");
// setup an HTTP handler to process incoming http requests
http.onrequest(function(request, response) {
try {
// check an 'led' query parameter was passed into the request
if (request.query != null && "led" in request.query) {
// if it was, pass it on the device
device.send("setLed", request.query.led.tointeger());
}
// send an http 200 to say everything was OK
response.send(200, "OK");
} catch (ex) {
// if there was an error, send back an http 500 and the error
response.send(500, "Internal Server Error: " + ex);
}
});
/* Hardware setup:
* connect a button or switch between pin9 and GND
*/
// it's considered best practice for every model to have an imp.configure
imp.configure("Button", [], []);
// assign hardware.pin9 to a variable to make things more clear
button <- hardware.pin9;
// function to be called when button state changes
function buttonStateChanged() {
// read the current state
local state = button.read();
// send it to the agent
agent.send("button", state);
}
// configure the button
button.configure(DIGITAL_IN_PULLUP, buttonStateChanged);
/* Hardware setup:
* connect an LED from Pin9 to GND (through a 339Ω resistor - orange, white, brown)
*/
// it's considered best practice for every model to have an imp.configure
imp.configure("LED", [], []);
// assign hardware.pin9 to a variable to make things more clear
led <- hardware.pin9;
led.configure(DIGITAL_OUT);
// turn LED off
led.write(0);
// value - 1 or 0
function setLed(value) {
led.write(value);
}
// setup a handler for setLed message from the agent
agent.on("setLed", setLed);
@ozzieg
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ozzieg commented Aug 20, 2013

This just beats XBee out of the water. What can I say?

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