The Serial Interface SI-625 connects the cb-625 MK4 to a standard PC RS232 serial port.
Retail price at USD18.- each set + postage.
Set includes : - Interface cable,
- battery holder for 4 AA batteries,
- adaptor, 25 ways male to 9 ways female,
- diskette with Windows ME/2000/XP software
For those of you who have an electrical bent this is what you will get built into a DB-25 plug housing.
Free Windows ME/2000/XP software chrono.exe (273K) for serial interface. (build 1.08.00)
This is a further developement release of the interface software
with help and will self install.
Now has optional metric units - meters/sec, grams and joules.
Download as a file then run it from the Windows explorer.
Now autosenses between Mark 1/2/3/4 and has the RMS value in averaging fixed.
If you really want to go it yourself you need to know:
The cb-625 MK4 interface sends at 9600 baud, 8 databits, 1 stop bit, no parity.
The RTS line must be set active (+ve) and the transmit data left inactive (-ve).
The data consists of a 4 digit ascii decimal number, zero filled with the most significant
digit first followed by a carriage return (0DH) and a line feed (0AH).
This is the number of clock cycles at 4MHz taken for the pellet to travel the 60mm gap
between the two sensors.