Read state of an input pin and tweet it

Agent Code
1

Hi guis I’m really a noob with my IMP and in english too; since last year I was running my IMP with a copy/paste code from whiskeytangohotel (tweet cat door) adjusted to my scope.
EASY JOB :

  1. Read the level on pin1 (high or low)
  2. Post a tweet (Level High or Level low) via a php script on Opensen.se.

As I read on recent post by IJLabs and all you gorgeous forum member: Hugo, Peter, jwehr, brendandawes, odb, beardedinventor the system must be reviewed and I tried many times without success.

I would underline that I don’t need to randomize the text on the tweet message but I need only a tweet “ON” in case of pin1 High and tweet “OFF” in case of pin1 LOW

Attached device code and agent code.

Please let me understand

2

Hi,

maybe you should try something like this.

Device:
`
//http://electricimp.com/docs/api/hardware/pin/read/
pin <- hardware.pin1;

function readPin() {
local state = pin.read();
//state will be 0 or 1
agent.send(“pinState”,state);
}
//each time the state of the pin changes, the function readPin will be called.
pin.configure(DIGITAL_IN_PULLUP, readPin);
`

Agent:
`
/*
Twitter code by @electricimp
https://github.com/electricimp/reference/tree/master/webservices/twitter
*/

helper <- {
function encode(str) {
return http.urlencode({ s = str }).slice(2);
}
}

class TwitterClient {
consumerKey = null;
consumerSecret = null;
accessToken = null;
accessSecret = null;

baseUrl = "https://api.twitter.com/";

constructor (_consumerKey, _consumerSecret, _accessToken, _accessSecret) {
    this.consumerKey = _consumerKey;
    this.consumerSecret = _consumerSecret;
    this.accessToken = _accessToken;
    this.accessSecret = _accessSecret;
}

function post_oauth1(postUrl, headers, post) {
    local time = time();
    local nonce = time;

    local parm_string = http.urlencode({ oauth_consumer_key = consumerKey });
    parm_string += "&" + http.urlencode({ oauth_nonce = nonce });
    parm_string += "&" + http.urlencode({ oauth_signature_method = "HMAC-SHA1" });
    parm_string += "&" + http.urlencode({ oauth_timestamp = time });
    parm_string += "&" + http.urlencode({ oauth_token = accessToken });
    parm_string += "&" + http.urlencode({ oauth_version = "1.0" });
    parm_string += "&" + http.urlencode({ status = post });
    
    local signature_string = "POST&" + helper.encode(postUrl) + "&" + helper.encode(parm_string)
    
    local key = format("%s&%s", helper.encode(consumerSecret), helper.encode(accessSecret));
    local sha1 = helper.encode(http.base64encode(http.hash.hmacsha1(signature_string, key)));
    
    local auth_header = "oauth_consumer_key=\""+consumerKey+"\", ";
    auth_header += "oauth_nonce=\""+nonce+"\", ";
    auth_header += "oauth_signature=\""+sha1+"\", ";
    auth_header += "oauth_signature_method=\""+"HMAC-SHA1"+"\", ";
    auth_header += "oauth_timestamp=\""+time+"\", ";
    auth_header += "oauth_token=\""+accessToken+"\", ";
    auth_header += "oauth_version=\"1.0\"";
    
    local headers = {
        "Authorization": "OAuth " + auth_header,
    };
    
    local response = http.post(postUrl + "?status=" + helper.encode(post), headers, "").sendsync();
    return response
}

function Tweet(_status) {
    local postUrl = baseUrl + "1.1/statuses/update.json";
    local headers = { };
    
    local response = post_oauth1(postUrl, headers, _status)
    if (response && response.statuscode != 200) {
        server.log("Error updating_status tweet. HTTP Status Code " + response.statuscode);
        server.log(response.body);
        return null;
    } else {
        server.log("Tweet Successful!");
    }
}

}
//
_CONSUMER_KEY <- “MY KEY”
_CONSUMER_SECRET <- “MY SECRET”
_ACCESS_TOKEN <- “MY ACCESS TOKEN”
_ACCESS_SECRET <- "MY ACCESS SECRET"
twitter <- TwitterClient(_CONSUMER_KEY, _CONSUMER_SECRET, _ACCESS_TOKEN, _ACCESS_SECRET);

function sendTweet(data){
twitter.Tweet("@YOUR_TWITTER_HANDLE"+" "+data);
}

device.on(“pinState”,sendTweet);
`

I haven’t tested it though.
Don’t forget to setup a Twitter app.
You’ll have to replace:
“MY KEY”
“MY SECRET”
“MY ACCESS TOKEN”
“MY ACCESS SECRET”
"@YOUR_TWITTER_HANDLE"
with you data.

g.
mezelve

3

Many Thanks Mezelve. I will try it maybe tonight than I leave a feedback. Twitter app already done hopefully…

4

working perfectly mezelve!
Thanks again!