Hey All,
So i’ve been thumbing through alot of documentation/references to find this answer, but am a bit daunted where to begin due to my lack of experience.
I essentially want to send messages between imps on my account. I figured xively would be the best approach, but am a bit confused. I had originally hosted a php script on a site to receive commands, but after looking through the forums, I assumed the new IDE/Xively might be the best approach.
I saw this thread: http://forums.electricimp.com/discussion/comment/7529#Comment_7529
and followed the directions, (not sure if this is even how I should begin) to simply send data from a photocell to one of my channels graphs. I receive this message:
no handler for agent.send()
I know this is a bit of a loaded post, so I guess my questions would be just a general question on getting the imps to receive messages amongst each other, and secondly why I am receiving this message/nothing is being logged to my xively account.
here is my code also:
AGENT:
`const FEED_ID = “I ADDED MY CUSTOM ID”;
const API_KEY = “ADDED MY API KEY”;
function get_xively() {
//wakeup
imp.wakeup(30.0, get_xively); //schedule when to wakeup again
local xively_url = "https://api.xively.com/v2/feeds/" + FEED_ID + ".json"; //format xively url
server.log(xively_url);
local getreq = http.get(xively_url, {"X-ApiKey":API_KEY, "User-Agent":"xively-Imp-Lib/1.0"}); //add headers
local res = getreq.sendsync(); //actuallty send request
if(res.statuscode != 200) {
server.log("error sending message: " + res.body);
}
server.log("#####RESPONSE#####");
server.log(res.statuscode + " OK"); //status
server.log(res.body); //body
//format data into table - uncomment to use
// local resTable = http.jsondecode(res.body);
// server.log(“table:”);
// server.log(resTable.title);
// server.log(resTable.id);
// //print ds0
// server.log(resTable.datastreams[0].id);
// server.log(resTable.datastreams[0].current_value + " at " + resTable.datastreams[0].at);
//send to device
//device.send("value", resTable.datastreams[0].current_value); //send custom data from table
device.send("json", res.body); //send json
}
get_xively(); //initialize first get request. will continue to call itself.
function send_xively(body) { //take in csv value
local xively_url = “https://api.xively.com/v2/feeds/” + FEED_ID + “.csv”; //setup url for csv
server.log(xively_url);
server.log(body); //pring body for testing
local req = http.put(xively_url, {“X-ApiKey”:API_KEY, “Content-Type”:“text/csv”, “User-Agent”:“xively-Imp-Lib/1.0”}, body); //add headers
local res = req.sendsync(); //send request
if(res.statuscode != 200) {
server.log("error sending message: “+res.body);
}else device.send(“status”, (res.statuscode + " OK”)); //sends status to uart. this can be removed if not desired
}
device.on(“data”, function(feedCSV) { //take csv body in from device
server.log(“device on”);
//send preformatted multi-ds csv
send_xively(feedCSV); //send to function to call xively
});
agent.on(“sendToXively”, sendToXively);
function sendToXively(data) {
//data is an array of key value pairs
local channels = [];
// loop through array and create 1 channel per item
for (local i = 0; i < data.len(); i++) {
local channel = Xively.Channel(data.key);
channel.Set(data.value);
channels.push(channel);
}
// create our feed and push to Xively
local feed = Xively.Feed(Xively.FEED_ID, channels);
local resp = Xively.Put(feed);
}`
DEVICE
`// Control a LED intensity throught PWM Control
//http://forums.electricimp.com/discussion/comment/7529#Comment_7529
server.log(“Start PWM LED Intensity”);
hardware.pin7.configure(PWM_OUT, 0.02, 1.0);
hardware.pin8.configure(PWM_OUT, 0.02, 1.0);
hardware.pin9.configure(PWM_OUT, 0.02, 1.0);
local nextLoop = 0.0;
local lastLoop = 0.0;
sensor1 <- hardware.pin2;
sensor1.configure(ANALOG_IN);
// Create inputPort and correspondent function light the LED
class LEDintensity extends InputPort
{
// Set name and type of input port
name = “InputAnalog”;
type = “number”;
// Create function to light the LED
function set(value)
{
if (nextLoop==0.0){
// local new_val = scale(value, 0, 1.0, 0, 256.0);
for(local value=0.0; value<=1.0; value+=0.02){
// Write PWM value accordingly to the input value. Divide by 65535 to get a value between 0 and 1
hardware.pin7.write(value/1.0);
///server.log(format("%.2f", value));
imp.sleep(0.04);
// return 0;
}
for(local value=1.0; value>=0.0; value-=0.02){
// Write PWM value accordingly to the input value. Divide by 65535 to get a value between 0 and 1
hardware.pin7.write(value/1.0);
//server.log(format("%.2f", value));
imp.sleep(0.04);
//return 0;
}
nextLoop=1.0;
}
if (nextLoop==1.0){
// local new_val = scale(value, 0, 1.0, 0, 256.0);
for(local value=0.0; value<=1.0; value+=0.02){
// Write PWM value accordingly to the input value. Divide by 65535 to get a value between 0 and 1
hardware.pin8.write(value/1.0);
///server.log(format("%.2f", value));
imp.sleep(0.04);
// return 0;
}
for(local value=1.0; value>=0.0; value-=0.02){
// Write PWM value accordingly to the input value. Divide by 65535 to get a value between 0 and 1
hardware.pin8.write(value/1.0);
//server.log(format("%.2f", value));
imp.sleep(0.04);
//return 0;
}
lastLoop = 1.0;
}
if(lastLoop==1.0){
for(local value=0.0; value<=1.0; value+=0.02){
// Write PWM value accordingly to the input value. Divide by 65535 to get a value between 0 and 1
hardware.pin9.write(value/1.0);
///server.log(format("%.2f", value));
imp.sleep(0.04);
// return 0;
}
for(local value=1.0; value>=0.0; value-=0.02){
// Write PWM value accordingly to the input value. Divide by 65535 to get a value between 0 and 1
hardware.pin9.write(value/1.0);
//server.log(format("%.2f", value));
imp.sleep(0.04);
}
nextLoop=0.0;
}
////these bottom brackets close function/Class
}
}
/////////////////////
function getValuesAndSendToXively() {
// read values from pins
local s1 = sensor1.read();
// make array of {key/value} objects to send to agent
local data = [];
data.push( { key = "sensor1", value = s1 } );
// send to agent
agent.send("sendToXively", 40);
// wakeup in 15 minutes, and do it again
imp.wakeup(10, getValuesAndSendToXively);
}
getValuesAndSendToXively();
// Configure imp in the server
imp.configure(“PWM LED Intensity”, [LEDintensity()], [getValuesAndSendToXively()]);`
