I have a hall effect sensor that is providing a square wave signal for a speedometer. Certain parameters (tire size, gear ratios, etc) can change the desired output frequency of hall sensor to the PCM. I'd like to find an IC that I can set up to multiply the output of the hall effect sensor by a set amount like 1.14 or 0.88 (likely some variable RC circuit?) to restore it to its original expected values
A simple example, an increase in tire size from 30" to 33" results in a 10% decrease in frequency. I'd like to set up a circuit to increase the output back up 10%
Or if one was to change an axle gear ratio from 3.73 to 4.88 while maintaining 30" tires the frequency would increase by 19%, I'd want to be able to adjust the output and decrease it by 19%
Can a 555 timer do this? Sorry if the question isn't clear, it's difficult to describe
A simple example, an increase in tire size from 30" to 33" results in a 10% decrease in frequency. I'd like to set up a circuit to increase the output back up 10%
Or if one was to change an axle gear ratio from 3.73 to 4.88 while maintaining 30" tires the frequency would increase by 19%, I'd want to be able to adjust the output and decrease it by 19%
Can a 555 timer do this? Sorry if the question isn't clear, it's difficult to describe