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MQTT(No Security) 통신연습 

MQTT (Message Queuing Telemetry Transport) is a lightweight broker-based publish/subscribe messaging protocol.

It is a machine-to-machine (M2M)/”Internet of Things” connectivity protocol.

It was designed as an extremely lightweight publish/subscribe messaging transport.

It is useful for connections with remote locations where a small code footprint is required and/or network bandwidth is at a premium.

 

 

 

 

1. MQTT(No Security) 통신시스템

 

 

 

2. MQTT(No Security) → SIM7000 

No Command Response Description
1 PDP Context 설정    
  AT+SMCONF=”CLIENTID”,”momoiot”    
  AT+SMCONF=”URL”,”tcp://test.mosquitto.org”,1883    
  AT+SMCONF=”KEEPTIME”,60    
  AT+SMCONN    
  AT+SMSUB=”update”,1    
  AT+SMPUB=”update”,”5″,1,1 >  
  aaaa    
  AT+SMUNSUB=”update”    
  AT+SMDISC    

 

 

 

 

Adsense

 

 WiFi IoT Module

 

www.mxchip.com

 

 

 Bluetooth Module

www.feasycom.com

 

 

 5G/LTE/CAT-M1/NB-IoT

 

www.simcom.com

 

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