How to reduce the rate of Hall Effect sensor signal .. #2

Thread Starter

Harpreet@ Singh

Joined Apr 28, 2023
So the signal is going to the bicycle’s controller, just altered. Well, if 50% works then a simple digital circuit that counts two and then sends one should work. I can’t help too much with that but there are certainly plenty of prolific circuit folks here who can.

I would do it with a small microcontroller like an ATTiny85 or the like. It’s just a little 8 pin chip that needs only 3 components to operate. The solution then becomes a simple program and the ratio can be arbitrary.

My immediate concern is one of safety and reliability. I have no idea what protection the motor controller has should the new rate allow it to assist to much higher than normal levels. Also, should the circuit fail, you could be stranded in a bad place, or have to pedal your much-too-heavy unassisted bike some distance.
Sir how can I use ATTiny85 to reduce my hall effect signal to 50%