Motivation
The BPM Generator give you +5V pulses output with 20ms length, from 40 to 240 beats per minute. Controlled by a microprocessor. The BPM are displayed with three 7 segment LED. The speed is adjusted with an rotary encoder.
Specs and features
- 40..240 BPM +5V/20ms output
- Speed control with rotary encoder
- PSU +15V/-15V or +12V/-12V (with minor changes)
- Schematic
- Pictures
- Download docs
Implementation
Schematic
Description:
Most work is done by the microprocessor. The micro takes care of the output timing and the multiplexing off the display. All four outputs are independently buffered.
Calibration
None
Special parts
None