Electronic board to automate the vacuum pump

This board has the following characteristics:

• An ESP32 microcontroller will handle all the logic and communication with smartphone over Bluetooth Low Energy and WIFI over UDP
• two 5V relay boards can handle a 230V AC fridge motor coils (compatibilty with fridge compressor)
• an OLED display could be used for debugging
• a pressure sensor will convert vacuum level into a voltage read by the ADC of the MCU
• a DC motor can be controlled via N channels Mosfets
• a brushless DC motor can be controlled with an ESC controller (optionnal 5V control stage)
• The board is powered (optionnaly) with a cheap 12V to 5V DC/DC converter

So this board should be more versatile than the previous one!

A devoted Hackaday's project has been created. Please follow this project for more details : DC motor Vacuum pump @Hackaday

It demonstrates how to control this 12V DC motor pump :

Here is the video of the PCB soldered

And finally here is the system fully working: