MQTT (Message Queuing Telemetry Transport) is a publish-subscribe messaging protocol that operates on top of the TCP/IP protocol. This protocol comprises a server and a client, with the server serving as an MQTT broker and the client functioning as a publisher or subscriber.
The P4M-440G from Sollae Systems serves as an MQTT client module, capable of receiving AT commands via the UART port and offering diverse MQTT communication functionalities. Using the P4M-440G module users can easily implement MQTT functions on their MCU or microcomputer.
P4M-440G Serial MQTT Ethernet Module Features:
- MQTT Client Functionality
- Simple AT Command Control Method Supported
- Equipped with 1 x 10/100Mbit Ethernet Port
- 1 x UART Port (default 19200 bps)
- Supports Security Protocol (TLS v1.2)
- Storage of Root CA and Client Certificates: Integration with commercial clouds (AWS & AZURE)
- Supports USB-Type PC Connection
- Dedicated Configuration Program: PHPoC Debugger
P4M-440G Serial MQTT Ethernet Module Specifications:
- Serial Physical Interface
- Serial Interface 3.3V level with 5V tolerant input
- RXD, TXD, GND
- Connector 1 X 12 2mm pitch pin header X 2
- Serial Port Property
- Baudrate 19,200 bps
- Data Bits 8 bits
- Parity None
- Stop Bit 1 bit
- Network Physical Interface
- Network Interface 10Base-T/100Base-TX Ethernet
- Ethernet Speed Auto Sense
- 1:1 or Cross-over Cable Auto Sense
- Simple External Circuit Required
- USB Physical Interface
- USB Interface 1 x USB Device (VBUS, USB_D_D+, USB_D_D-)
- Software Functions
- Protocols MQTT, TCP, UDP, IP, ICMP, ARP, DHCP, DNS
- Security TLS v1.2
- Communication Mode TCP Client on AT Commands
- MQTT Functions
- Control Packets CONNECT / DISCONNECT, SUBSCRIBE / UNSUBSCRIBE, PUBLISH, PINGREQ
- QoS Level 0 & 1
- Topic Wildcard NOT supported yet
- Management
- PHPoC Debugger Configuration and Monitoring Tool through Network and USB
- Dimensions
- Size 26mm x 26mm x 9mm (1.0 x 1.0 x 0.35 inches)
- Body Weight Approximately 4g (0.14 ounces)
- Operating Environment
- Input Voltage DC 3.3V
- Current Consumption 95mA Typical
- Operating Temperature -40℃ ~ +85℃
- Storage Temperature -40℃ ~ +85℃
Package includes:
1X P4M-440G Serial MQTT Ethernet Module
Delivery is stock to 2 weeks ARO
Optional Accessories:
P4M-440G MQTT Serial Ethernet Module Documentation, Specifications, and Resources
P4M-440G Serial MQTT Ethernet Module Product Page on the ezTCP website:
https://www.eztcp.com/en/products/p4m-440g