3
votes
3answers
580 views

Cleanest method for measuring the reported speed of multiple computer fans?

This question builds upon this previous one How to interpret output of 3-pin computer fan speed sensor? which was asking about the 'sense' wire output from computer fans. I am designing a fan ...
8
votes
3answers
412 views

Measuring cpu load of interrupt routine

I have an isr that is updating a display at a fixed frequency. I would like to tune my routine to minimize overhead and keep as much cpu time as possible open for other processing, but I don't have ...