skylarmt/usbscale
1
0
Fork 0
mirror of https://github.com/erjiang/usbscale.git synced 2025-06-28 09:00:58 -06:00
Code Issues Projects Releases Wiki Activity

Fixed weight reading to be properly-scaled double

Browse Source
This commit is contained in:
Eric Jiang 2011-03-01 15:39:48 -05:00
parent 0268fa50b0
commit f4c33e687d
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
usbscale.c
View File

@ -258,7 +258,7 @@ static int print_scale_data(char* dat) {
uint8_t status = dat[1]; uint8_t status = dat[1];
uint8_t unit = dat[2]; uint8_t unit = dat[2];
uint8_t expt = dat[3]; uint8_t expt = dat[3];
long weight = dat[4] + (dat[5] << 8); double weight = (double)(dat[4] + (dat[5] << 8)) / 10;
if(expt != 255 && expt != 0) { if(expt != 255 && expt != 0) {
weight = pow(weight, expt); weight = pow(weight, expt);
@ -295,7 +295,7 @@ static int print_scale_data(char* dat) {
// the `UNITS` lookup table for unit names. // the `UNITS` lookup table for unit names.
// //
case 0x04: case 0x04:
printf("%ld %s\n", weight, UNITS[unit]); printf("%g %s\n", weight, UNITS[unit]);
return 0; return 0;
case 0x05: case 0x05:
if(status != lastStatus) if(status != lastStatus)