ThomasTheTankEngine
Member
I am doing a projekt where I am reading the Hall sensor on Pc fans with an Teensy LC for that i used following circuid only changing the pullup form 5 to 3.3V:
themakersworkbench.com/content/tutorial/reading-pc-fan-rpm-arduino
At first it worked like a charm but as soon as I turned off the fan the Teensy startet to connect and disconnect the Serial Terminal pretty fast. That stopped when i pulled out the wire connected to the Hall Sensor and the pullup but now it stopped working.
Can anybody tell me what i have done wrong?
themakersworkbench.com/content/tutorial/reading-pc-fan-rpm-arduino
At first it worked like a charm but as soon as I turned off the fan the Teensy startet to connect and disconnect the Serial Terminal pretty fast. That stopped when i pulled out the wire connected to the Hall Sensor and the pullup but now it stopped working.
Can anybody tell me what i have done wrong?