STM32 industrial control board

The module can collect 4-20mA or 0-10V analog signals, has 24-bit resolution, is connected to PLC or host computer through modbus protocol, and has programmable upper and lower limit relay output functions. Adopting Free RTOS real-time operating system, programmable ADC acquisition frequency, 485 interface and power interface adopt lightning protection and anti-surge design. Wide voltage input range, up to 4.7 to 40V voltage range. It is very convenient in certain situations, such as water level control. When the water level reaches a low level, the water pump is started to add water, and when the water level reaches a high water level, the water pump is turned off.

Thanks again for Lichuang’s support

PCB and components are back and ready to go

Go to the workbench

Solder peripheral components first

Then weld the STM32 microcontroller

Finally weld the straight plug-in

The welding work is basically completed

Finally, wash it with washing water

PCB also needs face, right?

Here's a close-up

Attached is the debugging video:

https://www.bilibili.com/video/av78805386

the second part

https://www.bilibili.com/video/av78919141