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  • timeseries-3.png
  • timeseries-4.png

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503	503
504	504	Configure the **Time series chart** widget as follows:
505	505
506		-* Datasource - select S31B-NB device you provisioned.
507		-* Series:
	506	+* **Datasource** - select S31B-NB device you provisioned.
	507	+* **Series**:
508	508	** **temperature** - you can see this key by default.
509		-** **humidity** - Click **Add series** button to add the **humidity** and then type **%** as its unit.
	509	+** **humidity** - Click **Add series** button. Then add the **humidity** for the key and then type **%** as its unit.
510	510	* Click on the **Add** button.
511	511
512		-
513	513	[[image:timeseries-1.png||height="491" width="700"]]
514	514
515		-
	514	+
	515	+The time-series chart will appear in edit mode. Resize it by clicking and dragging the lower-right corner.
	516	+
	517	+Click the **Save** button to add the widget to the dashboard.
	518	+
	519	+
	520	+[[image:timeseries-3.png||height="347" width="700"]]
	521	+
	522	+
	523	+Now send the following MQTT messages from the terminal to simulate the data.
	524	+
	525	+
	526	+{{code language="none"}}
	527	+mosquitto_pub -d -q 1 -h 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/S31B-NB/telemetry" -u "pradeeka" -P "Kalpani123@" -m '{"temperature":20, "humidity":70}'
	528	+
	529	+mosquitto_pub -d -q 1 -h 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/S31B-NB/telemetry" -u "pradeeka" -P "Kalpani123@" -m '{"temperature":22, "humidity":71}'
	530	+
	531	+mosquitto_pub -d -q 1 -h 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/S31B-NB/telemetry" -u "pradeeka" -P "Kalpani123@" -m '{"temperature":18, "humidity":79}'
	532	+
	533	+{{/code}}
	534	+
	535	+The chart will update with the values in realtime, as shown in the below image.
	536	+
	537	+
	538	+[[image:timeseries-4.png||height="316" width="700"]]
	539	+
	540	+
	541	+= 7. Configure NB-IoT Sensor =
	542	+
	543	+
	544	+Now, let's experiment with sending data to ThingsBoard using a real NB-IoT device. For example, we will use the **S31B-NB**.
	545	+
	546	+First, configure the NB-IoT device with the necessary MQTT settings using AT commands. Below is a list of AT commands you can use.
	547	+
	548	+
	549	+**AT Commands**
	550	+
	551	+* **AT+PRO=3,3    **~/~/ Use MQTT to connect to ThingsBoard. Payload Type set to 3.
	552	+
	553	+* **AT+SUBTOPIC=<device name>**  Eg.
	554	+
	555	+* **AT+PUBTOPIC=<device name>**
	556	+
	557	+* **AT+CLIENT=<device name> or User Defined**
	558	+
	559	+* **AT+UNAME=<device name> or User Defined**
	560	+
	561	+* **AT+PWD=<device name> or User Defined**
	562	+
	563	+Test Uplink by click the button for 1 second

timeseries-3.png

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timeseries-4.png

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