[NRY] added sim check

examples/gprs.js

@@ -17,22 +17,34 @@ var message = 'Text from a Tessel!';
 var gprs = gprslib.use(hardware); 
 gprs.on('ready', function() {
   console.log('GPRS module connected to Tessel. Searching for network...')
-  //  Give it 10 more seconds to connect to the network, then try to send an SMS
   setTimeout(function() {
-    console.log('Sending', message, 'to', phoneNumber, '...');
-    // Send message
-    gprs.sendSMS(phoneNumber, message, function smsCallback(err, data) {
-      if (err) {
-        return console.log(err);
-      }
-      var success = data[0] !== -1;
-      console.log('Text sent:', success);
-      if (success) {
-        // If successful, log the number of the sent text
-        console.log('GPRS Module sent text #', data[0]);
-      }
+    gprs.getCIMI(function(err, CIMI){
+      console.log("got IMSI", CIMI);
+      gprs.getGSMStatus(function(err, gsm){
+        console.log("got gsm", gsm);
+        gprs.getGPRSStatus(function(err, gprs){
+          console.log("got gprs", gprs);
+        });
+      });
     });
   }, 10000);
+
+  // //  Give it 10 more seconds to connect to the network, then try to send an SMS
+  // setTimeout(function() {
+  //   console.log('Sending', message, 'to', phoneNumber, '...');
+  //   // Send message
+  //   gprs.sendSMS(phoneNumber, message, function smsCallback(err, data) {
+  //     if (err) {
+  //       return console.log(err);
+  //     }
+  //     var success = data[0] !== -1;
+  //     console.log('Text sent:', success);
+  //     if (success) {
+  //       // If successful, log the number of the sent text
+  //       console.log('GPRS Module sent text #', data[0]);
+  //     }
+  //   });
+  // }, 10000);
 });
 
 //  Emit unsolicited messages beginning with...

index.js

@@ -157,15 +157,19 @@ GPRS.prototype.answerCall = function (callback) {
   });
 };
 
-// Send a series of back-to-back messages recursively and do something with the final result. Other results, if not of the form [`messages[n]`, 'OK'] error out and pass false to the callback. The arguments `messages` and `patience` must be of the same length. Like `_txrx`, this function is also useful for expanding the module's functionality.
+// Send a series of back-to-back messages recursively and do something with the final result. 
+// Other results, if not of the form [`messages[n]`, 'OK'] error out and pass false to the 
+// callback. The arguments `messages` and `patience` must be of the same length. Like `_txrx`, 
+// this function is also useful for expanding the module's functionality.
 GPRS.prototype._chain = function (messages, patiences, replies, callback) {
   /*
   mesages
     An array of Strings to send as commands
   patiences
     An array of numbers; milliseconds to wait for each command to return
   replies
-    An array of expected replies (arrays of strings). If any index is false-y, its reply simply must not error out.
+    An array of expected replies (arrays of strings). If any index is false-y, its 
+    reply simply must not error out.
   callback
     Callback function. Args come from the last function in the chain.
 
@@ -196,29 +200,25 @@ GPRS.prototype._chain = function (messages, patiences, replies, callback) {
           }
         }
       }
-      self.emit('_intermediate', correct);
+      // self.emit('_intermediate', correct);
+
+      if (correct) {
+        self._chain(messages.slice(1), patiences.slice(1), replies.slice(1), callback);
+      } else {
+        self.postmaster.forceClear();
+        if (callback) {
+          callback(new Error('Chain broke on ' + messages[0]), false);
+        }
+      }
     };
     //  Still more to do in the chain
-    if (messages.length > 0) {
+    // if (messages.length > 0) {
       var func = (messages.length === 1) ? callback:_intermediate;
       if (DEBUG) {
         console.log("_txrx sending", messages[0]);
       }
       self._txrx(messages[0], patiences[0], func, [[messages[0]], [replies[0][replies[0].length - 1]]]);
-      //  If we have more to do before the base case, respond to the '_intermediate' event and keep going
-      if (func === _intermediate) {
-        self.once('_intermediate', function (correct) {
-          if (correct) {
-            self._chain(messages.slice(1), patiences.slice(1), replies.slice(1), callback);
-          } else {
-            self.postmaster.forceClear();
-            if (callback) {
-              callback(new Error('Chain broke on ' + messages[0]), false);
-            }
-          }
-        });
-      }
-    }
+    // }
   }
 };
 
@@ -299,6 +299,28 @@ GPRS.prototype._checkEmissions = function () {
   });
 };
 
+GPRS.prototype.getCIMI = function(callback){
+  var self = this;
+  this._txrx('AT+CIMI', 10000, function (err, CIMI) {
+    callback(err, CIMI);
+  });
+}
+
+GPRS.prototype.getGSMStatus = function(callback){
+  var self = this;
+  this._txrx('AT+CREG?', 10000, function (err, status) {
+    callback(err, status);
+  });
+}
+
+GPRS.prototype.getGPRSStatus = function(callback){
+  var self = this;
+  this._txrx('AT+CGREG?', 10000, function (err, status) {
+    callback(err, status);
+  });
+}
+
+
 // Many unsolicited events are very useful to the user, such as when an SMS is received or a call is pending. This function configures the module to emit events that beign with a specific String. There is probably a better way to do this, though, so consider the function unstable and pull requests welcome.
 GPRS.prototype.emitMe = function (beginnings) {
   /*

postmaster.js

@@ -153,7 +153,8 @@ Postmaster.prototype.send = function (message, patience, callback, alternate, de
         temp(err, data);
       }
     };
-
+
+
     //  if we time out
     var panic = setTimeout(function() {
       self.removeListener('post', reply);
@@ -164,7 +165,7 @@ Postmaster.prototype.send = function (message, patience, callback, alternate, de
     //  if we get something
 
     self.once('post', function(err, data) {
-      self.removeAllListeners('post'); // WORKAROUND: see bug https://github.com/tessel/runtime/issues/226
+      // self.removeAllListeners('post'); // WORKAROUND: see bug https://github.com/tessel/runtime/issues/226
       clearTimeout(panic);
       if (self.debug) {
         console.log("postmaster replying", data);