Sweet got a project for this weekend!
Thanks,
Will
On 11/1/22 2:59 PM, Jerry Davis wrote:
I used my bench power supply, some jumpers, and a 33K pullup resistor
on the wand output. I used the M100 schematic as a guide on how to
connect the wand. There's only four pins used on the wand: Power +5
(pin 9), detector output (pin 2), and ground (pins 5 and 7).
I set the scope to single sweep with trigger on transition edge after
I confirmed that I could see the output changing. Edge triggering
let's you see the barcode pattern which looks pretty cool. You can
hold the barcode up to the scope screen and see it match. I can't
remember if it was rising or falling trigger but you'll figure it out
once you see it on the screen.
Jerry
On Tue, Nov 1, 2022, 2:31 PM Will Senn <[email protected]> wrote:
Hi Jerry,
OK. When Willard first mentioned speed, as in go faster, as a
potential issue, I was skeptical, but now it's starting to sound
reasonable :). But, now I wanna try the oscilloscope ( I love any
excuse to get my Rigol and/or Salae out). So, tell me, how did you
hook up stuff? Did you just put the scope in between wand and m100
for power and then monitor the other talking pins, or did you just
apply power to the wand via another power supply and monitor the
talking pins without the m100 being involved, or what?
Thanks,
Will
On 11/1/22 12:43 PM, Jerry Davis wrote:
I have the barcode reader and software. When I first started
using it I had the exact same problem you did. None of the
drivers and demo applications seemed to work. The wand LED is
very dim on mine. The first thing I did was print out some
barcodes from a Google search. There are some websites that will
create a barcode from data you enter on a web page. I attached
an oscilloscope to the wand and saw that it actually does a great
job of detecting light and dark transitions regardless of
background illumination. I decided to accept that the software
and hardware are working and find out if the problem was the way
I was using the wand. As William suggested in his response, I
had to practice a bit to find the correct speed. It's almost a
"flick of the wrist" for me. After I got the hang of it, I was
able to make the demonstration software beep almost every time.
All of the bar codes and drivers worked for me once I figured out
how to use the wand.
Jerry
On Tue, Oct 25, 2022 at 8:19 PM Will Senn <[email protected]>
wrote:
So, I bought a BCR on Ebay, unboxed it and hooked it up.
Loaded the driver, and the basic program to do the scans.
But, when I scanned, the light came on, but no joy on beep or
numbers. It's a pretty dim light... Any ideas to
troubleshoot/fix? Supposedly, the only user serviceable
component is the cap and that's fine. That dim light is
concerning - were they usually a pretty bright light or were
they always dim?
Regards,
Will
