P4M-440G / Serial MQTT Ethernet Module

Product Specification Videos Download Ordering Info

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 serves as an MQTT client module, capable of receiving AT commands via the UART port and offering diverse MQTT communication functionalities. Consequently, users can easily implement MQTT functions on their MCU or microcomputer using this module.

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

* The above information is subject to change and Sollae Systems is not responsible for any changes..
Serial Physical Interface
Serial Interface	3.3V level with 5V tolerant input
Serial Interface	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

Dimension
Size	26mm x 26mm x 9mm
Body Weight	Approximately 4g

Operating Environment
Input Voltage	DC 3.3V
Current Consumption	95mA Typical
Operating Temperature	-40℃ ~ +85℃
Storage Temperature	-40℃ ~ +85℃