I have had no use for a check digit so far. I have pretty much stuck to code 39 or code 39 extended char set (allows for more odd characters, like the tilde, and for commands like [ENTER]. Be sure to leave about a 1/4 inch of white space on either side of the code, and try to find a dull type finish to print on - it works better. If the finish is too shiny, the code will not give erroneous data, but will just not scan. Just a side note for those not familiar with bar codes - the code is actually read by bouncing light off the white spaces, not the black stripes. Good luck on your project. BC
-----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Ken Tooker Sent: Tuesday, May 23, 2006 10:20 PM To: RBASE-L Mailing List Subject: [RBASE-L] - Re: Barcode Scanner Input Bob, et al; Appreciate all the good input that I have received from everyone. I have been watching this forum for several years now and it really has powerful input for the developers. That is worth a lot, not only money but time. My plan is now to go USB. and have ordered a Symbol LS2208 unit. I do have another question and that is the check digit. Is that a software check or is it a hardware (scanner) check. If it is software how is that done? And assuming the default of Mod 10 is best? I plan to use for this situation (relatively small volume (~10k) library) the format like they are using for one of the larger libraries in the area. This will aid in locating lost volumes. e.g.; If they are using Codabar or Code 39, I will use the same. etc. Again, thanks for the past assistance and the future. Ken -- Reclaim Your Inbox and your sanity! For Mail Choose: http://www.mozilla.com/thunderbird/ For A Browser Choose: http://www.mozilla.com/firefox/ Get them, they work for you.... <>< = = = = = = = = = = = = K ~ V ~ T = = = = = = = = = = = = = = = ><> Castanaro, Bob wrote: > I have been converting all my newer scanners to USB. Less hassle than > keyboard wedges with PS2. Try Worthdata.com. Unfortunately, the PS2 > scanners I have been using never break down. Good luck. > BC > > ---------------------------------------------------------------------- > -- > *From:* [email protected] [mailto:[EMAIL PROTECTED] *On Behalf Of > *TOM HART > *Sent:* Tuesday, May 23, 2006 11:16 AM > *To:* RBASE-L Mailing List > *Subject:* [RBASE-L] - Re: Barcode Scanner Input > > I have been using a ps2 with good results, have not tried USB. Go to > SystemID for equipment if needed http://www.systemid.com/index3.asp. > Tom Hart > > */Ken Tooker <[EMAIL PROTECTED]>/* wrote: > > Will be setting up a barcode (7.1) application and need to know what > would be the best choice for the scanner unit attachment. Have a > choice > of a PS2 connector or USB connector. I can understand how the scan > output would be received by the application using the PS2 > connector, but > how does the application see the results of the scan using the USB > connector? The USB would be the more simpler and cleaner way. The PS2 > connector would need some sort of wye (Y) connector to accommodate > both > keyboard and scanner. > > Thanks in advance... > Ken > > -- > >
