MQTT - MQTT Ethernet Communication Module APM32F103 - Unit expansion module for development modules M5Stack

Ethernet MQTT communication module in a form of Unit type extension module. It has built-in ARM Cortex-M3 processor , uses UART communication interface, through which AT commands are controlled. The module is also equipped with an integrated RJ45 10 / 100 Mb network port. It supports subscription of four topics (topic) and is used in widely understood industrial automation, security monitoring systems, automatic measurement and control systems and allows remote data collection to the cloud.

MQTT - Ethernet communication module MQTT - Unit extension module for M5Stack developer modules.

Included with the MQTT module is also a dedicated connection cable.

• Embedded chip: APM32F103
• Processor: ARM Cortex-M3
• Communication interface: serial UART
  • Speed: 9600 bps 8N1 (default)
• MQTT support: 4x subject subscription
• MQTTS: not supported
• Ethernet network port: RJ45 10 / 100 Mb
• Latency: 10 ms
• Standby operating current: 40.4 mA
• Programming:
  • AT commands
  • UIFlow programming platform, Arduino, original PC configuration
• Dimensions: 72 x 26 x 19 mm
• Weight: 22.4 g

• MQTT - Ethernet communication module MQTT - Unit extension module for M5Stack development modules
• Dedicated connection cable HY2.0-4P

MQTT stands for MQ Telemetry Transport. It defines extremely simple data transmission protocol. It is currently the easiest and most widely used way to send data to the cloud. The data published using the MQTT protocol are in text form. This means that without any major problems you can convert the data structure to JSON format (or any other text format) and then publish it. The MQTT protocol is dedicated to transmission for devices that do not require high bandwidth. By limiting the transmission speed, the protocol provides greater reliability.

• Manufacturer's website: M5Stack U129
• User guide