Recent content by AdaBill

I'm reading the valve of the 10K pot (Analog Read) and using that value to determine what PWM signal to send to the fan. I started out 0 to 100% but then realized that the PWM for the fan only ran thru a small portion of that range. I think I mapped it from 40 to100%. You can play with the...

I'll be interested in seeing what you come up with. If you use the 10VDC supplied by the fan that would eliminate my current need for a external power supply (Wall Wart) for the ESP. One less part. I ran the system that I designed for a couple months (7x24) with no problems. I like you are...

I'm NOT adding any voltage to the circuit, it is all internal to the fan. The connection with PWM isn't tied into the + side of the supply, it just completes the ground connection. Remember that when the plug is disconnected that the fan runs at 100%. 0 PWM (open circuit) = 100% fan, reverse...

I like the concept of using OptoCouplers (OC's), It is the safest way to connect to devices in the outside world. I always buy the OC relays for my Arduino projects, just out of habit,I figure why not. The MOSFET id just a Solid State Relay in my mind. I started with the MOSFET and since I have...

Yes, the ESP side goes to GND and GPIO5. It should be remembered that the MOSFET module is only switching the GND side of the PWM going to the internal fan circuitry through the connector on the cable provided by Infinity. The + side of the switch is NOT connected. I didn't modify anything in...

The 2 center pins of the connector are the ones used. A drawing of the connector and the molex is in above thread. Pins 2 and 3 of the Connector. On the dual mosfet the + connectors go straight through, they are not switched, always connected. The switching is done on the - connections. If you...

I was able to connect an ESP32 to the AC Infinity fan by replacing the controller supplied with my ESP32 connector. It is the same Molex connector used in PC's power supply to disks. Just unplug the provided speed controller and plug the molex from the power supply into the provided cable. No...