Last modified by Mengting Qiu on 2025/03/08 11:33
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... ... @@ -62,32 +62,32 @@ 62 62 [[image:image-20230802112413-3.png]] 63 63 64 64 65 -= =3.2=65 += 2. General MQTT Connection = 66 66 67 - 68 68 The NB-IoT Sensor can send packet to server use MQTT protocol. 69 69 70 -Below are the commands .69 +Below are the commands 71 71 72 - **AT Commands:**71 +AT Commands: 73 73 74 -* **AT+PRO=3,0**75 -* **AT+SERVADDR=120.24.4.116,1883**~/~/ Set MQTT server address and port76 -* **AT+CLIENT=CLIENT**77 -* **AT+UNAME=UNAME**78 -* **AT+PWD=PWD**79 -* **AT+PUBTOPIC=NSE01_PUB**80 -* **AT+SUBTOPIC=NSE01_SUB**73 +* AT+PRO=3,0 ~/~/ Set to use MQTT protocol to uplink, Payload Type select Hex payload. 74 +* AT+SERVADDR=120.24.4.116,1883 ~/~/ Set MQTT server address and port 75 +* AT+CLIENT=CLIENT ~/~/ Set up the CLIENT of MQTT 76 +* AT+UNAME=UNAME ~/~/ Set the username of MQTT 77 +* AT+PWD=PWD ~/~/ Set the password of MQTT 78 +* AT+PUBTOPIC=NSE01_PUB ~/~/ Set the sending topic of MQTT 79 +* AT+SUBTOPIC=NSE01_SUB ~/~/ Set the subscription topic of MQTT 81 81 82 82 [[image:image-20230802112413-4.png]] 83 83 84 84 [[image:image-20230802112413-5.png]] 85 85 86 - **Notice: MQTT protocol has a much higher power consumption compare with UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.**85 +Notice: MQTT protocol has a much higher power consumption compare with UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval. 87 87 88 88 89 -== 3.3 [[ThingSpeak>>url:https://thingspeak.com/]] (via MQTT) == 90 90 89 += 3. [[ThingSpeak>>url:https://thingspeak.com/]] (via MQTT) = 90 + 91 91 == 1.1 Get MQTT Credentials == 92 92 93 93 [[ThingSpeak>>url:https://thingspeak.com/]] connection uses MQTT Connection. So we need to get MQTT Credentials first. You need to point MQTT Devices to ThingSpeak Channel as well.