Code chunks from project javamon

publishMsg.c

// Publish the value using PubNub
static void publishMsg (void)
{
	// Check values for I2C line error...
	if (TWI_msg[0] > 99 || TWI_msg[1] > 99) {
		TWI_fullMsg = 10000;
	}
	// Ignore very small values
	else if (TWI_msg[0] == 0 && TWI_msg[1] < 50) {
		TWI_fullMsg = 0;
	}
	// Record full value and round to nearest 10
	else {
		int mod = TWI_msg[1] % 10;
		TWI_msg[1] /= 10;
		if (mod > 4)
			++TWI_msg[1];
		TWI_msg[1] *= 10;
		TWI_fullMsg = (uint16_t)TWI_msg[1] + 100 * (uint16_t)TWI_msg[0];
	}
	// Only publish if this is a new value or it's been a while...
	if((TWI_fullMsg != TWI_lastMsg) || TIME_TO_PUBLISH) {
		char buf[40] = { 0, };	
		sprintf(buf, "{\"columns\":[[\"Coffee\",\"%d\"]]}", TWI_fullMsg);
		pubnub_publish(channel, buf);
		TWI_lastMsg = TWI_fullMsg;
		stat_flag &= ~REQUEST_PUBLISH;
	}
}

pubnub_connect.c

// Callback - Called when a connection to PubNub is made 
static void IFA PN_connectedCB(void)
{
	// Do Stuff once connected to PubNub
}

// Callback - Called when on PubNub connection error
static void IFA PN_connErrorCB(sint8 error)
{
	// Do stuff on Connection error
        // Maybe request a device reset!
}

// ...

// Called after connection to WiFi is established...
pubnub_connect(PN_connectedCB, PN_connErrorCB);

pubnub_connect.h

/** 
 * Creates a connection to Pubnub
 * This should be called when a network connection is established!
 * User can specify functions to be called on certain events.
 *
 * @param	connCB		callback for connection success event
 * @param	connErrCB	callback for connection error events
 */
void IFA pubnub_connect(Pubnub_connectedCB connCB, Pubnub_connErrorCB connErrCB);

pubnub_eon.js

eon.chart({
    pubnub:pubnub,
    channel: channel,
    connect: historyCall,       // This function is called on initial connection
    message: function(m){
        // Do Stuff with Message "m"
    }
    generate: {
        // Specify the chart characteristics
    }
});
            

pubnub_history.js

function historyCall(){
	var unixTime = Date.now() / 1000;	// current time in seconds
	var endTime = (unixTime - (5 * 60));  	// get the time five minutes ago
    	pubnub.history({
        channel: 'javamon',
        count: 1,                         	// Only get 1 message from history
	end: endTime * 10000000,          	// Only get history from the "end" timetoken and newer
        reverse: false,
        callback: function(m){
		// If there is a message, publish it.
		if (m[2] != 0) {	// If there are no messages, this timetoken will be 0
		        pubnub.publish({
			    channel: 'javamon',
			    message: m[0][0]
		    	});
		}
		// Otherwise, can't find the pot
		else {
			// Alert users to go check the pot!                 
		}
            }
    });
}; 

pubnub_init.js

var pubnub = PUBNUB.init({
    publish_key: 'YOUR_PUBLISH_KEY',
    subscribe_key: 'YOUR_SUBSCRIBE_KEY'
});
        
var channel = "javamon";
eon.chart({
    pubnub:pubnub,
    channel: channel,
    message: function(m){
         // Do cool stuff here!
});