Hardware circuit and embedded software:
It combines environmental monitoring, information reporting, and auxiliary equipment control functions;
It uses ESP32 to connect THD02 temperature and humidity sensors and carbon dioxide sensors. The temperature, humidity, and carbon dioxide values are transmitted to a remote server through Ethernet or Wi-Fi.
It has 4-20mA output for other device control,
Has a 0-10V voltage output that can be used to adjust light brightness.
4-20mm port: input for other device, For example, a 2-wire air pressure sensor.
an RS485 communication interface.
The expandable IO port can be used to connect other sensors, such as ozone sensors, nitric oxide sensors… etc。
Shell design:
Made of white ABS material, with gaps on both sides for air circulation, and holes for installing SMA antennas.There are 3 screw hook holes on the back of the shell for installation on the wall.
