Click on maintenance and make sure you have the latest firmware, if not then upload the one you downloaded in step 1.
1.
Configuration
Then click on configuration and setup the following
1.
Change the iSpindel name
2.
Set the interval to 900 (15 min)
3.
Select HTTP for Service Type
4.
Paste your BrewBench API key in for Token
5.
Enter sensor.brewbench.co for Service Address
6.
Enter 80 for the Service Port
7.
Enter /ispindel/[BrewBench API Key] for Path / URI (Replacing [BrewBench API Key] for your Key and Save
8.
If you don't want to DIY one you can buy one from Open Source Distilling
iSpindel - Open Source Distilling
Open Source Distilling
App settings
You can copy your API key from settings in the app or from the add iSpindel screen. Use the default /ispindel/[API KEY] endpoint for plato. The app will display this in the temp setting you have selected.