Search found 4 matches
- Sat Aug 07, 2021 6:00 am
- Forum: ESP32 Arduino
- Topic: PWM controlled fan tacho wrong
- Replies: 24
- Views: 32787
Re: PWM controlled fan tacho wrong
The link to the GitHub project is in the post above. Can't you see it? If not, google for "esp32 fan controller github klausmu".
- Fri Dec 18, 2020 6:47 pm
- Forum: ESP32 Arduino
- Topic: PWM controlled fan tacho wrong
- Replies: 24
- Views: 32787
Re: PWM controlled fan tacho wrong
I published a project on GitHub describing an "ESP32 fan controller". An ESP32 is used for controlling a fan via PWM including tacho measurement, MQTT and (Touch-)display. Feel free to comment.
https://github.com/KlausMu/esp32-fan-controller
https://github.com/KlausMu/esp32-fan-controller
- Fri Jun 26, 2020 6:35 pm
- Forum: ESP32 Arduino
- Topic: PWM controlled fan tacho wrong
- Replies: 24
- Views: 32787
Re: PWM controlled fan tacho wrong
Do you have a drawing of this
- 20200626_203108_cr.jpg (552.87 KiB) Viewed 4925 times
- Wed Feb 19, 2020 7:25 pm
- Forum: ESP32 Arduino
- Topic: PWM controlled fan tacho wrong
- Replies: 24
- Views: 32787
Re: PWM controlled fan tacho wrong
Just to let you know, I had exactly the same challenge and was very happy to find this thread. I don't have an oscilloscope, but I tried a lot of combinations of pullup resistors and RC filters. I got the best results with: fan tacho out - pullup resistor 10k to 3.3V - series resistor 3.3k - capacit...