Build a Remote Control for F-1 Shooting Chrony

I found a 1/8" stereo cable laying around in junk box. (like this one
http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&product%5Fid=42-2387 )

I cut one end off and soldered a NO(Normally Open)push button switch to the
wires connected to the Ground (sleeve) and Ring.
(The Tip is for data output to your PC or Chrony Printer, just leave it
unconnected).



I tied the wire down so it wouldn't break.


Since it's raining here, I hung up a couple of 60Watt Reflector lamps and
started shooting!

Thanks for sharing this. Put one together and it works just fine.

on the software, I might post a DIY PC interface.
They look real easy to make, but the software to
talk to a serial port on the PC might be a little
harder to come up with.

I will look around for some free-ware before
asking for some programmer to donate some time
building a simple program that will read the
data into the PC so it can be handled with Excel
or some other standard software.

Cheers,
Rich

http://groups.google.com/groups?hl=en&lr=lang_en&ie=UTF-8&threadm=c0kvrk%2418et7k%241%40ID-56855.news.uni-berlin.de&rnum=30&prev=/groups%3Fq%3Dchrony%2Bprogram%2B-clock%26num%3D100%26hl%3Den%26lr%3Dlang_en%26ie%3DUTF-8%26filter%3D0

I also found a reference to a free program QBALL ver 3.00 that connects using msdos interface. But I can't search out that program. I assume that it uses the serial interface with (25 pin conn) pin 3 as receive and pins 4 and 5 (request to send and clear to send) shorted together so that the port free runs.

Gregory

http://www.swproducts.biz/ChronoCap/connections.htm
(near the bottom of the page).

But I've not seen any 'free-ware' around for reading in the data.
I'm thinking maybe Matlab or LabView (or even Visual Basic) could be
used to capture the data. Then one could use Excel to work it over some.

Maybe I'll hook up the O-scope to that un-used lead and see if there
is any signals on it. (After I press the button or fire a pellet).

Cheers,
Rich

http://home.hiwaay.net/~ispellan/Airguns.html

Gregory

I've heard that this program will mate a chrony to pc via dos.
It's at
http://stevespages.com/page8b.htm

I've d/l'd it but haven't tried it yet. There's lots of other
ballistics programs on this page too.

By the way, Qball was written by Ben Hartley of New Hampshire and I
heard that the last version was 3.3 He's aparently abandoned the
program and doesn't plan to update it again.

I've downloaded both programs.
Now I've got to dig out that old NEC portable and see what kind of
RS232 port it has. (And see if it still works)!

I noticed the diagrams seem to use a different ground reference.
Yesterday, I looked at the output on the O-scope and it seemed
like the best ground reference was the input signal..?..
I was seeing a +4 & -4 Volt waveform (RS232 serial data format)
using the input line as my ground ref.. weird..

It's going to be a while before I can solder again, but
when I get Chrony data flowing, I'll post the DIY info.

with the software I downloaded.

The 'NEC portable PC' that I wanted to use was NG.
Won't even boot from a DOS floppy.

Has anyone else made a homebrew PC hookup?

Cheers,
Rich

What is the remote used for?

so you can play back the shots after you shoot 32 or less..

The software (Chronys.exe) does work. I was using it today.
http://home.hiwaay.net/~ispellan/Airguns.html

The PC makes a little beeep sound as it takes the data..

Cheers,
Rich

"i for one am not going to sit back and
allow cheap copys of a gun i own ruin
the company i have had the pleasure
of dealing with since the early 80's."
-B50 Reviewer, UK-