Fixed weight reading to be properly-scaled double

13 years ago · f4c33e687d
parent 0268fa50b0
commit f4c33e687d
1 changed files with 2 additions and 2 deletions
--- a/usbscale.c
+++ b/usbscale.c
@ -258,7 +258,7 @@ static int print_scale_data(char* dat) {
    uint8_t status = dat[1];
    uint8_t unit   = dat[2];
    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) {
        weight = pow(weight, expt);
@ -295,7 +295,7 @@ static int print_scale_data(char* dat) {
        // the `UNITS` lookup table for unit names.
        //
        case 0x04:
-            printf("%ld %s\n", weight, UNITS[unit]);
+            printf("%g %s\n", weight, UNITS[unit]);
            return 0;
        case 0x05:
            if(status != lastStatus)