dennisheitmann/ESP8266-MQTT-to-Serial-Bridge

ESP8266 MQTT Wifi Client to Serial Bridge with NTP

ESP8266 MQTT Wifi Client to Serial Bridge

forked from rkubera (Radek Kubera) https://github.com/rkubera (removed CRC32, NTP, applied some bug-fixes)

• License: MIT

Features

• Connect to MQTT Server via WIFI
• Publish Topics to MQTT Server via Serial
• Subscribe/Unsubscribe Topics from MQTT Server via Serial
• Automaticaly reconnect to Wifi if signal lost
• Automaticaly reconnect to MQTT Server and resubscribe Topics if disconnected
• Easy API

Connection

Connect do ESP8266 via UART port (9600 baudrate)

API

Commands (must be finished with \n EOL):

1. connect

• Connect to open accespoint myAccesspoint
  • command: connect myAccespoint
  • response1 (on start): [conecting to wifi]
  • response2 (on success): [wifi connected]
• Connect to accespoint myAccesspoint with myPassword
  • command: connect myAccespoint:myPassword
  • response1 (on start): [conecting to wifi]
  • response2 (on success): [wifi connected]

2. mqttuserpass

• Set Mqtt Server user mymqttuser with empty pass
  • command: mqttuserpass mymqttuser
  • response: [mqtt user and pass set]
• Set Mqtt Server user mymqttuser with password mymqttpass
  • command: mqttuserpass mymqttuser:mymqttpass
  • response: [mqtt user and pass set]

3. mqttserver

• Set Mqtt Server mqttserver mymqttserver only (port will be set as Default:1883)
  • command: mqttserver mymqttserver
  • response1 (on start): [connecting to mqtt server]
  • response2 (on success): [mqtt connected]
• Set Mqtt Server mqttserver mymqttuser and mqttport 1885
  • command: mqttserver mymqttserver:1885
  • response1 (on start): [connecting to mqtt server]
• response2 (on success): [mqtt connected]

4. publish and publishretained

• Publish topic mytopic with payload mypayload:
  • command: publish mytopic mypayload
  • response: [published] or [wrong publish command] or [mqtt not connected]
• Publish retained topic mymtopic with payload mypayload:
  • command: publishretained mytopic mypayload
  • response: [published] or [wrong publish command] or [mqtt not connected]

5. subscribe and unsubscribe

• Subsctibe topic mytopic
  • command: subscribe mytopic
  • response: [subscription added] or [mqtt not connected]
• Unsubscribe topic mytopic
  • command: unsubscribe mytopic
  • response: [subscription removed] or [mqtt not connected]

6. get

• Get echo (check if ESP8266 is live)
  • command: get echo
  • response: [echo]
• Get ip address
  • command: get ip
  • response: [123.123.123.123]
• Get WiFi status
  • command: get wifistatus
  • response: [wifi connected] or [wifi not connected]
• Get ssid
  • command: get ssid
  • resonse: [myssid]
• Get MQTT Server status
  • command: get mqttstatus
  • response: [mqtt connected] or [mqtt not connected]
• Get mqtt Server
  • comand: get mqttserver
  • response: [mymqttserver]
• Get mqtt user
  • command: get mqttuser
  • response: [mymqttuser]

7. errors if ESP8266 not recognised command will return [error] message.