This app simulates a Shelly Pro 3EM energy meter in Homey.
It was specifically developed for integration with the Marstek Venus home battery.
The app reads real-time power data from a HomeWizard P1 OR Tibber Pulse and forwards it via UDP to the Marstek Venus. The simulator supports 3-phase measurements (L1, L2, L3 and total), and works fully with Homey Insights and Flows.
Data sources:
HomeWizard:
- Reads power data directly from your HomeWizard device
- Works with both HomeWizard P1 and HomeWizard kWh meter
- Requires the IP address of your HomeWizard
Tibber Pulse:
- Reads power data via the Tibber live API
- Requires a Tibber API token (available at developer.tibber.com)
- Requires a Tibber Pulse connected to your smart meter
- Home ID is automatically detected
All P1 meters paired in Homey:
- Reads power data directly from your Homey (via Homey Energy)
Installation instructions:
1. Add the Shelly Pro 3EM Emulator device in Homey.
2. Choose your data source (HomeWizard P1, Tibber Pulse or Homey Energy).
3. For HomeWizard: set the IP address.
For Tibber: enter your API token.
4. Set the IP address of your Marstek Venus.
5. Set the update interval (1-10 seconds).
Frequently asked questions:
Is this an official Shelly app?
No. This is a simulator, independently developed.
Does this app work without a HomeWizard P1?
Yes! You can select all P1 meters that you have paired in Homey Energy as a source.
Can I adjust the update speed?
Yes. Between 1 and 10 seconds.
Why do I see low values with Tibber?
Tibber measures the NET power at your smart meter. If your battery is already compensating, you will see values around 0 - this is correct behavior!
How do I get a Tibber API token?
1. Go to developer.tibber.com
2. Log in with your Tibber account
3. Generate a token and copy it to the app settings
Author: Roedi de Lion
E-mail: hoog_labradors.2d@icloud.com
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