Consider replacing MOSFET with proper DC motor controller

[kartben]

Right now the fan is either off or full speed. It's far from ideal as it's causing the sensors to have a hard time picking up the smells. Having a more gentle airflow would likely help a lot

[kidpixo]

I use this for my ESP project, but the controllers work with a generic I2C interface

• WemosMotorshield - Let's Control It
• Wemos V1.0 Motor Shield — ESP Easy 2.1-beta1 documentation

[kartben]

Thanks for the hint! I was considering looking at https://www.seeedstudio.com/Grove-I2C-Mini-Motor-Driver.html mostly because Grove connectors are super convenient, and it also looks like it has a really small form factor.

If you end up integration the TB6612FNG based controller I would love to see a pull request! :-)

[tiagocpontesp]

There's simplefoc too