[Akshay Bhavsar]

Hey Peter,

I could access my web application without even login to conduit and node-red, but when I restart the conduit, I have to wait about 7-10 minutes to access web-application, until then it shows this error as mentioned before.

Why it is taking such a long time ?

https://drive.google.com/file/d/0B8vP1Z3v0Sw8T3cwcGtKNy1NQ2c/view

Thanks

[Akshay Bhavsar]

Thanks for your help Peter.. Appreciated it.. Just one more question, how can I remotely access conduit, make changes and would be able to deploy the code ?

• This reply was modified 8 years, 2 months ago by Akshay Bhavsar.

[Akshay Bhavsar]

ok thanks..What I have notice strange thing is that, after importing a flow you mentioned and running that, my flow also started to working even without login into node-red.

[Akshay Bhavsar]

/home/root/data.txt , how can I make this file to readable by everyone ?

[Akshay Bhavsar]

Here is the flow.

[{"id":"8ed4b335.cac8a","type":"file","name":"","filename":"/home/root/data.txt","appendNewline":true,"createDir":false,"overwriteFile":"false","x":687.9999885559082,"y":192,"z":"c8f27500.54b3f8","wires":[]},{"id":"1a0f0418.0a73fc","type":"template","name":"","field":"","format":"handlebars","template":"<pre>{{payload}}</pre>","x":741,"y":434,"z":"c8f27500.54b3f8","wires":[["7a2e6c25.ac6cb4"]]},{"id":"7a2e6c25.ac6cb4","type":"http response","name":"","x":920.9999885559082,"y":430.9999542236328,"z":"c8f27500.54b3f8","wires":[]},{"id":"5446f213.d50c2c","type":"http in","name":"","url":"/test","method":"get","swaggerDoc":"","x":270,"y":433.99993896484375,"z":"c8f27500.54b3f8","wires":[["403ed356.16ea8c"]]},{"id":"c327ffe5.3525d","type":"debug","name":"","active":false,"console":"false","complete":"payload","x":706,"y":349.99993896484375,"z":"c8f27500.54b3f8","wires":[]},{"id":"403ed356.16ea8c","type":"file in","name":"","filename":"/home/root/data.txt","format":"utf8","x":498,"y":433.99993896484375,"z":"c8f27500.54b3f8","wires":[["c327ffe5.3525d","1a0f0418.0a73fc"]]},{"id":"a29775ea.2a1308","type":"lora in","name":"","datatype":"bytes","x":299.799991607666,"y":190.1999969482422,"z":"c8f27500.54b3f8","wires":[["aa0885d9.f41798"]]},{"id":"aa0885d9.f41798","type":"function","name":"","func":"var identify_button = ((msg.payload).slice((msg.payload.length)-10,(msg.payload.length)-9));\nvar rBuf_identify_button = new Buffer(identify_button,'hex');\nvar identify_button_val = (rBuf_identify_button.readUInt8(0));\nvar time = msg.timestamp;\nvar ID_tag = msg.eui;\n\nvar button_status;\nvar identify_button_val_remainder = (identify_button_val)%64;\nif(identify_button_val_remainder == 14)\n{\n button_status = \"pressed\";\n}\nelse\n{\n button_status = \"Not-pressed\"; \n}\n\nvar battery = ((msg.payload).slice((msg.payload.length)-9,(msg.payload.length)-8));\nvar rBuf_battery = new Buffer(battery,'hex');\nvar battery_val = (rBuf_battery.readInt8(0));\n\nvar latitude = ((msg.payload).slice((msg.payload.length)-8,(msg.payload.length)-4));\nvar rBuf_latitude = new Buffer(latitude,'hex');\nvar latitude_val = (rBuf_latitude.readInt32BE(0))*0.000001;\n\nvar longitude = ((msg.payload).slice((msg.payload.length)-4,msg.payload.length));\nvar rBuf_longitude = new Buffer(longitude,'hex');\nvar longitude_val = (rBuf_longitude.readInt32BE(0))*0.000001;\n\nmsg.payload = {payload: \"time: \" +time+ \", \" + \"ID tag: \" +ID_tag+ \", \" + \"Button: \"+ button_status+ \", \" +\"Battery status: \" + battery_val + \"%, \" + \"GPS Data: \" + latitude_val + \",\" + longitude_val };\n\nreturn msg.payload;\n\n","outputs":1,"noerr":0,"x":480.8000068664551,"y":192.20001220703125,"z":"c8f27500.54b3f8","wires":[["8ed4b335.cac8a","d8e03144.1d9eb"]]},{"id":"d8e03144.1d9eb","type":"debug","name":"","active":false,"console":"false","complete":"payload","x":654.7999725341797,"y":111.19999694824219,"z":"c8f27500.54b3f8","wires":[]}]

I have tried the flow you mentioned, I can access that one even without login in to node-red. I am not sure what is the problem with my flow.

Thanks

[Akshay Bhavsar]

I do use http request and response node. Have a look attached flow for confirmation.

https://drive.google.com/open?id=0B8vP1Z3v0Sw8cFNwZGpZNDAzSnc

When I try to run https://192.168.2.1:1880/test without login to node-red, I see error page.

https://drive.google.com/file/d/0B8vP1Z3v0Sw8T3cwcGtKNy1NQ2c/view

• This reply was modified 8 years, 2 months ago by Akshay Bhavsar.

[Akshay Bhavsar]

Can anyone please explain this how to solve this scenario with more concrete example ?

Thanks

[Akshay Bhavsar]

What I want to exactly do is like if I give my conduit to other person, then he should be able to access web-page app directly ( by just going to https://192.168.2.1:1880/test), without even login to conduit and node-red. How can I do this ?

Another question is if any problem occurs then, I should be able to fix it remotely by accessing node-red and GUI of Multitech conduit. So, how could I access multitech conduit remotely without using Simcard.

Any help would be great !

Thanks

[Akshay Bhavsar]

Thanks for your help Jeff. Is it possible to access webpage directly without even login to Node-RED page ?

[Akshay Bhavsar]

Hi there,

I have solved this by using following command.

var battery = ((msg.payload).slice((msg.payload.length)-9,(msg.payload.length)-8));
var rBuf_battery = new Buffer(battery,'hex');
var battery_val = (rBuf_battery.readInt8(0));

readInt8(0) function can be readUInt8(0) for unsigned number. Also depending the length of hex number this function can also be write as readInt16(0) and readInt32(0).

Thanks

[Akshay Bhavsar]

Hi Peter,

Have you find anything ?

Thanks
Akshay

• This reply was modified 8 years, 2 months ago by Akshay Bhavsar.

[Akshay Bhavsar]

The output of debug node, without the function is as follow

00820dfdbd803008a08856

I want to slice 4 hex number at the end and convert it into decimal.
I just found that slice doesn’t written data type in hex. If I just assign hard value of hex number as
var a = 0xfb5216ff

It does convert into number by using parseInt command.

[Akshay Bhavsar]

Here is the flow

var longitude= ((msg.payload).slice((msg.payload.length)-4,msg.payload.length));
longitude = parseInt(longitude,16);
return longitude;

https://drive.google.com/open?id=0B8vP1Z3v0Sw8NHpvZ2ZlUGZVOXM

[Akshay Bhavsar]

It is in byte mode, but doesn’t give me any data. Is there any alternative ?

[Akshay Bhavsar]

Thanks Guys, I have found out the problem.

MTDOT-BOX was configured wrong. The data rate was DR0 and max payload was 100, so I set up data rate to DR4 and max payload to 242. So, I am getting payload in both applications LoRa Demo and survey signal.

following link has command for it. if anyone find same problem.

Configuration Mode

[Akshay Bhavsar]

Is there any updates on this issue ?

[Akshay Bhavsar]

Thanks jeff

[Akshay Bhavsar]

Thanks Jeff,

I am not going to use cellular same time , but can I use it as one of internet connection might have drop or other problem, just as a backup ?

[Akshay Bhavsar]

https://drive.google.com/file/d/0B8vP1Z3v0Sw8d3Y0ZDRTWVlEZ2M/view?usp=sharing

Look like link tab doesn’t work.

[Akshay Bhavsar]

[Akshay Bhavsar]

Hi Steve,

I did that, but not able to see anything on debug tab. It does join and I can see in statics. Have a look the image.

[Akshay Bhavsar]

Hi Steve,

Is there any updates on this or the code you have provided might have something wrong in it. MTDOT-BOX-G-195 do join conduit box. When I run IP address of conduit box and check system log and under the LoRa tab it does shows the connection. I have used your code( as mentioned above thread) in Node-RED and send data from MTDOT-BOX, but do not able to see that in debug window.

Your help would be great.

Thanks
Akshay

[Akshay Bhavsar]

Hi guys,
Don’t worry about the above error, I figure it out.

Now the problem is I am note able to receive data on debug window of Node-RED. I am successfully able to join MTDOT-Box-G-915 to MultiConnect Conduit. When I run LoRa Demo from theMTDOT-Box-G-915 and send the the data not able to receive it on Node-RED.

I have imported the code as @Steve Kovarik has suggested.

So, What can be the issue ?

Thanks
Akshay

[Akshay Bhavsar]

@Leon I know the link, but there isn’t any full example for it, such as assigning data type and stuff.

var data_type = {
	none : 0x00,
	led1 : 0x01,
	led2 : 0x02,
	lux_max : 0x03,
	lux_min : 0x04,
	lux_curr : 0x05,
	baro_max : 0x06,
	baro_min : 0x07,
	baro_curr : 0x08,
	temp_max : 0x09,
	temp__min : 0x0A,
	temp_curr : 0x0B,
	accel_max : 0x0C,
	accel_min : 0x0D,
	accel_curr : 0x0E,
	configuration : 0x0F,
	gpio_in : 0x10,
	gpio_out : 0x11,
	current_max : 0x12,
	current_min : 0x13,
	current_curr : 0x14,
	gps_latitude : 0x15,
	gps_longitude : 0x16,
	gps_time : 0x17,
	gps_date : 0x18,
	gps_lock : 0x19,
	qos_up : 0x1A,
	qos_dwn : 0x1B,
	rf_out : 0x1C,
	data_mark : 0x1D,
};

var data_struc = {
	data_valid : 0,
	block_start :0,
	temperature : 0,
	x_pos : 0,
	y_pos : 0,
	z_pos : 0,
	baro_pressure : 0,
	lux : 0,
	pkt_timer :0,
	rf_pwr : 0,
	sf_val : 0,
	rssi_up : 0,
	snr_up : 0,
	rssi_dwn : 0,
	snr_dwn :0 ,
	lat_deg : 0 ,
	lat_min : 0,
	long_deg : 0,
	long_min : 0,
	num_sats : 0 ,
	gps_status : 0,
};

context.global.data_out = context.global.data_out || data_struc;
var pData = context.global.data_out;

var msg_pntr = 0;
var temp = 0;

while (msg_pntr < msg.payload.length){
	switch (msg.payload[msg_pntr]){
	case data_type.lux_max:
	case data_type.lux_min:
	case data_type.lux_curr:
		pData.lux = msg.payload[++msg_pntr] << 8;
		pData.lux |= msg.payload[++msg_pntr];
		pData.lux = pData.lux * 0.24;
		msg_pntr++;
		break;
	case data_type.baro_max:
	case data_type.baro_min:
	case data_type.baro_curr:
		pData.baro_pressure = msg.payload[++msg_pntr]<<16;
		pData.baro_pressure |= msg.payload[++msg_pntr]<<8;
		pData.baro_pressure |= msg.payload[++msg_pntr];
		pData.baro_pressure = pData.baro_pressure * 0.25;
		msg_pntr++;
		break;
	case data_type.accel_max:
	case data_type.accel_min:
	case data_type.accel_curr:
		pData.x_pos = ((msg.payload[++msg_pntr] << 24) >> 24) * 0.0625;
		pData.y_pos = ((msg.payload[++msg_pntr] << 24) >> 24) * 0.0625;
		pData.z_pos = ((msg.payload[++msg_pntr] << 24) >> 24) * 0.0625;
		msg_pntr++;
		break;
	case data_type.temp_min:
	case data_type.temp_max:
	case data_type.temp_curr:
		pData.temperature = msg.payload[++msg_pntr] << 24;
		pData.temperature |= msg.payload[++msg_pntr] << 16;
		pData.temperature = (pData.temperature >> 16) * 0.0625;
		msg_pntr++;
		break;
	case data_type.configuration:
		pData.pkt_timer = msg.payload[++msg_pntr];
		msg_pntr++;
		break;
	case data_type.current_max:
	case data_type.current_min:
	case data_type.current_curr:
		msg_pntr++;
		msg_pntr++;
		msg_pntr++;
		break;
	case data_type.gps_latitude:
		pData.lat_deg = (msg.payload[++msg_pntr] << 24) >> 24;
		pData.lat_min = msg.payload[++msg_pntr];
		temp = msg.payload[++msg_pntr] << 8 ;
		temp |= msg.payload[++msg_pntr];
		pData.lat_min = pData.lat_min + (temp * 0.0001);
		msg_pntr++;
		break;
	case data_type.gps_longitude:
		pData.long_deg = (msg.payload[++msg_pntr] << 24);
		pData.long_deg |= (msg.payload[++msg_pntr] << 16);
		pData.long_deg = pData.long_deg >> 16;
		pData.long_min = msg.payload[++msg_pntr];
		temp = msg.payload[++msg_pntr] << 8;
		temp |= msg.payload[++msg_pntr];
		pData.long_min = pData.long_min + (temp * 0.0001);
		msg_pntr++;
		break;
	case data_type.gps_time:
		msg_pntr++;
		msg_pntr++;
		msg_pntr++;
		msg_pntr++;
		break;
	case data_type.gps_date:
		msg_pntr++;
		msg_pntr++;
		msg_pntr++;
		msg_pntr++;
		break;
	case data_type.gps_lock:
		msg_pntr++;
		pData.gps_status = msg.payload[msg_pntr] & 0x0F;
		pData.num_sats = msg.payload[msg_pntr++] >> 4;
		break;
	case data_type.qos_up:
		pData.rssi_up = msg.payload[++msg_pntr] << 24;
		pData.rssi_up |= msg.payload[++msg_pntr] << 16;
		pData.rssi_up = pData.rssi_up >> 16;
		pData.snr_up = (msg.payload[++msg_pntr] << 24) >> 24;
		pData.rf_pwr = (msg.payload[++msg_pntr] << 24) >> 24;
		msg_pntr++;
		break;
	case data_type.qos_dwn:
		pData.rssi_dwn = msg.payload[++msg_pntr] << 24;
		pData.rssi_dwn |= msg.payload[++msg_pntr] << 16;
		pData.rssi_dwn = pData.rssi_dwn >> 16;
		pData.snr_dwn = ((msg.payload[++msg_pntr] << 24) >> 24) / 4;
		msg_pntr++;
		break;
	case data_type.rf_out:
		pData.rf_pwr = (msg.payload[++msg_pntr] << 24) >> 24;
		msg_pntr++;
		break;
	case data_type.data_mark:
		if (msg_pntr == '0') {
			pData = data_struc;
			pData.block_start = 1;
			msg_pntr++;
		}
		else if (msg_pntr == (msg.payload.length - 1) && (pData.block_start === 1)) {
				pData.data_valid = 1;
				msg_pntr++;
			}
			else {
				pData = data_struc;
				msg_pntr = msg.payload.length;
				}
		break;
	default:
		pData = data_struc;
		msg_pntr = msg.payload.length;
	}
}

pData.sf_val = parseInt(msg.datr.replace("SF","  "),10);

context.global.data_out = pData;

return pData;

@steve Thanks man. It has created above code, but still I am not able to see data on Node-RED at debug window.

When I deploy I am getting following error, what that means and how can I correct it ?

” mqtt-broker: staging.thethingsnetwork.org:1883 ”

Thanks guys
Akshay

[Author]

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