DC Motor selection for vacuum pump to control with ESP32

gomez9656
Posts: 21
Joined: Mon Mar 14, 2022 7:48 pm

DC Motor selection for vacuum pump to control with ESP32

Postby gomez9656 » Tue Nov 14, 2023 9:14 pm

Hello there Espressif's community!

I'm working on a vacuum pump product controlled with an Arduino or ESP32.

I have a working prototype but my motor seems to not reach the vacuum I need.

The requirement is that the motor uses 12V DC(or 6V) and is able to produce around 80kPa vacuum pressure in a 1L cylinder. I'm using the MPX5100 to sense the pressure.

I'm not an expert on pneumatics so I'm using generic pipes, silicone, and a 750mL bottle to test this. The motor I have is generic, so there's no datasheet that tells me the vacuum pressure it can create.

If someone can give any tips on how to create a proper seal between the motor/sensor/air valve/cylinder and how to choose the correct motor I would appreciate it a lot :)
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