Perhaps Verpies could elaborate on the device he's built? It may turn out to be something that could be shared around the members of OUR?
It is a 12VDC device with a 15 digit LED display that I designed to log the acceleration of a race car (from stop to finish).
TTL Pulses from the car's wheel's ABS sensor are fed into the device and counted/logged onto a removable memory card. The numbert of pulses reflects how far the car has traveled.
The exact time when each pulse occurs is written to the memory card with a microsecond precision.
The device has two counters:
- a pulse/distance counter (7 LED digits)
- a time counter (8 LED digits) MMM:SS:mmm
The pulse (distance) counter's limit
can be preset to any value (N) from a keypad located below the display.
After reset, the first pulse appearing at the input, increments the pulse counter and enables the continuous running of a millisecond clock (which works like a stopwatch).
When the pulse counter counts all the way up to the preset limit N, the millisecond clock gets frozen, yielding the time it took to count these N pulses.
The time of each pulse is also logged to the external memory card (formatted as FAT32) in a CSV file.
It may turn out to be something that could be shared around the members of OUR?
I doubt it.
It is a custom microcontroller + LED display driver jobbie and it is good only for logging the acceleration/deceleration of mechanical things ...or measuring how long it takes for N pulses to occur.
If you can install the attached LCD font on a Windows machine, I can send you a software simulation of this device.
« Last Edit: 2017-04-08, 08:58:48 by verpies »