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ESP-32 Wireless Wifi Development Board esp32 pcba control board serial IO controller 

WIFI RTU product overview

WiFi RTU is a collection and control terminal device that uses WiFi wireless data transmission.The device uses ESP32 module, supports more free development and more flexible scenario applications, supports TCP/UDP/MQTT network protocols, and provides users with fully transparent data transmission mode.Support custom heartbeat package, registration package, data guide package, support through mountain cloud port, users do not need to set up a server, fully support industrial configuration application, users do not need to care about the complex network protocol, through the transparent serial port, you can send and receive wireless data, so that your device can access to the Internet anytime and anywhere.

WiFi RTU supports TCP and UDP message formats, which can be selected by users at will.The 4-way analog output, 4-way switch output and 4-way relay output are suitable for most application scenarios and can solve the problem of data transmission for you without any wiring.WiFi RTU provides wireless data transmission and acquisition control wherever there is a WiFi network.

 

WIFI RTU characters

Base on ESP32 chip module,support for higher freedom of development and function expansion.
WIFI version RTU more suit the need of family and indoor scenario to control and monitor equipment.
4 digital quantity, 4 analog quantity input, 4 channels relay output.
Support center SDK programming and standard Socket programming.
Wide operating temperature range, working in -25 to +70°C environment.
Data interface uses RS485 communication interface, baud rate may choose, from 300 BPS to 115200 BPS, start/stop/parity can be selected. 
Support center SDK programming and standard Socket programming.
Support the MIND IOT cloud.
Support virtual serial port, support access to a variety of configuration software.

WIFI RTU technical parameters

 

Characters		Description
Power supply		DC6~36V
Power consumption		12VDC power:
		Peak current:MAX 1A(communicating)
		Work current:50mA-340mA
		idle:<50mA
Network		WIFI
WIFI frequency		2.412GHz-2.484GHz
Acquisition interface	Analog quantity input	4 channels analog quantity 4-20ma/0-5V/0-10V/0-30V
	Digital quantity input	4 channels digital quantity input
	Relay output	4 channel independent relay output
		Maximum load current of relay:250VAC/30VDC@5A
Serial port interface		RS485;rate:300-115200bps;
		Data bit:7/8;parity check:N/E/O;stop bit:1/2 bit
Serial port (parameter configure)		Micro-USB;rate:300-115200bps;
		Data bit:7/8;parity check:N/E/O;stop bit:1/2 bit
Temperature range		-40℃~+85℃
Humidity range		Relative humidity 95%
		(no condensation)
Physical character		Size:long:145mm wide:90mm high:40mm
		weight:200g

 

 

 

ESP-32 module pin definition

The pin layout as shown below:

 

Support user secondary program development

It can be widely used in the secondary development of various wireless solution. You can add cellular network/LoRaWAN/Ethernet/NB-IoT on it. What's more, if you need, we will provide related source code for you like the below. 

Python code

Arduino code

 

WiFi RTU Mechanical Size 

All plastic housing is adopted to adapt to various working environments. Fixed mounting holes are designed on both sides of the housing. Standard guide rail card groove is provided on the back of the housing, and the specific shape and size of mounting holes are shown below:  UNIT/mm

 

 

RTU WIFI Using Scenario