Thread Rating:
  • 1 Vote(s) - 5 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Strange effect with Shahe scales
#9
(11-24-2017, 04:27 PM)lushifushi Wrote: Yuriy,
  
I have done some research, using a Launchpad, voltage shifter and the mixed scale 1.0 firmware from your website.
 
These Shahe 5404 series scales use the "Harbour freight caliper data format", which you describe here:

http://www.yuriystoys.com/2013/07/chines...ormat.html

You are mentioning there:
"The 21-st bit indicates the negative number"
This is what I see also here, but the software doesn´t seem to process this bit.

"Additionally there is no evidence that all of the first 20 bits are used. Using 16 bit..."
Well, here is the evidence, this scale uses 17 bits  Big Grin  but the software seem to process the first 16 bit only.

Without the original dislpay connected, I can´t switch mm/inch mode. Bits 22...24 are always 0.

Karsten

Karsten,
Thank you for the information. This is very helpful.
Mixed scale firmware handles negative numbers using bit 21, so this scale is slightly different. If you are 100% positive this is the case I can compile a "custom" version of the firmware for you to try over the weekend.

Thank you
Yuriy
Reply


Messages In This Thread
Strange effect with Shahe scales - by lushifushi - 11-13-2017, 01:41 PM
RE: Strange effect with Shahe scales - by Yuriy - 11-13-2017, 03:05 PM
RE: Strange effect with Shahe scales - by Yuriy - 11-14-2017, 08:52 PM
RE: Strange effect with Shahe scales - by Yuriy - 11-24-2017, 05:29 PM
RE: Strange effect with Shahe scales - by Yuriy - 12-09-2017, 05:33 PM
RE: Strange effect with Shahe scales - by Yuriy - 01-17-2018, 06:02 AM
RE: Strange effect with Shahe scales - by Yuriy - 02-07-2018, 09:23 PM

Forum Jump:


Users browsing this thread: 1 Guest(s)