This is ace.
Am going to do this.
I have three NF-F12 Industrial 3000RPM fans.
If I were to extend this circuit for controlling the three fans individually, I assume:
- Add PWM & RPM for Fan 2 to D3 and D4
- Add PWM & RPM for Fan 3 to D5 and D6
- Would need 2 extra 10k Resistors
- would keep the single DHT11