ESP32 'smart' kitchen scale

TODO

1. There's a lot todo.
2. First is probably the documentation. :(
3. You can find out more at: Hackaday.io.
4. Also see my revised Google app script.

Linking the scale to your Google sheet

1. First, you'll need to setup your Google app script. You can see the github gist link above for a working script, which includes instructions. Make sure to read through the code and insert the required information before deploying (there are three separate places. Terrible design, I know.). Also, note that for the app script to work, you have to push a new version with every change to the code.
2. Change the file extension of the file called google_script_stuff.#h to .h.
3. Open your newly saved file, and replace the fields marked for replacement:
   1. spreadSheetID is String which identifies your specific spreeadsheet. You can get it by going to your spreadsheet and copying the uri string between docs.google.com/spreadsheets/d/ and /edit.
   2. key is a String, which will be your API key provided by google. The key string should be formatted as key=*your_API_key*.
   3. SHEET_SCRIPT_URI is a constant String (which I probably should make a const char* instead of a #define), which is a link to your published app script. You can get the link from the google app script online editor when deploying. The string should be of the form /macros/s/ YOUR_PUBLISHED_SCRIPT_ID /exec? (without spaces, and don't forget the '?' at the end!).