11-24-2017, 04:27 PM
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
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
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

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