latest test version can be found here: Growatt | Homey
This app is the official Athom app for Growatt.
Connect your Growatt Inverter, meter or battery to Homey, get detailed insights into your solar energy production and battery usage, and limit your inverter AC power (curtailment).
Monitor your current power output, as well as your daily, monthly, yearly, and total generation. With the GroWatt app for Homey, you can use this data to optimize your energy usage, create Flows, and keep track of your system’s performance — all in one place.
It works with the Growatt cloud, so no local connection.
There are two ways to get the required API key:
On your mobile phone: Open the Growatt ShinePhone app. Go to ‘My Account’ (right bottom), and click on your user name. Click on ‘API Token’. Make sure ‘Use Status’ is on. Copy and save the API Token. You need it when pairing a Growatt device in Homey.
On a PC/Laptop: Visit Login . Click on your username (top right). Under account management you will find the API Token. Make sure it is enabled. Copy and save the API Token. You need it when pairing a Growatt device in Homey.
No devices found:
During device pair in Homey some users might get a message that there is an issue with their Growatt account, or that no devices are found. Please contact Growatt service (service.nl@growatt.com) to ask a manual fix of that issue. Alternatively a solution was found by @Paolo_Baccolo : [APP][PRO&CLOUD][OFFICIAL] Growatt - #203 by Paolo_Baccolo and by @Leander_00 : [APP][PRO&CLOUD][OFFICIAL] Growatt - #239 by Leander_00

