Add paragraph about zeroing the scale

This commit is contained in:
Eric Jiang 2020-06-25 22:51:59 -07:00
parent ac1a13730c
commit f1ff9fefba

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@ -24,6 +24,13 @@ error messages will be sent to `stderr`. An exit code of 0 means that a scale
was found and a weight was successfully read. Any other error code indicates
that a weight reading was unavailable.
## Zeroing the scale
There is somewhat-experimental support for sending a tare command to the scale.
You can invoke it by running `usbscale zero`. Not all scales seem to do the
right thing when they receive this command, but please let us know whether your
scale works in the GitHub issues.
Adding support for more scales
------------------------------