derrickr
New Member
I'd like to build a simple BPM counter for DJ use, that would plug in-line with the output from a mixer to the headphones, and display the bpm (to the the headphones) on a simple 3 digit led display.
I've been looking around the net and have seen others are also after a similar tool, but don't seem to be having any luck.
I believe the basic idea is quite simple : Low Pass Filter to produce a pulse that could be picked up by a counter/timer, which is then sampled over a failry short peroid and is then multiplied to give bpm, which is then sent to a simple LED driver circuit.
If anyone has ideas or circuit diagrams, I'd appreciate the feedback.
Many Thanks,
Derrick
I've been looking around the net and have seen others are also after a similar tool, but don't seem to be having any luck.
I believe the basic idea is quite simple : Low Pass Filter to produce a pulse that could be picked up by a counter/timer, which is then sampled over a failry short peroid and is then multiplied to give bpm, which is then sent to a simple LED driver circuit.
If anyone has ideas or circuit diagrams, I'd appreciate the feedback.
Many Thanks,
Derrick