I've created a native Hubitat driver for local control of Pioneer WYT (Diamante) mini-splits and potentially other Tuya-based mini-split systems.
What This Is
This driver communicates directly with your mini-split over your local network - no cloud, no bridge service, no external dependencies. It implements the Tuya protocol natively in Groovy.
Important: This Is For Tuya Protocol Units Only
Many Pioneer mini-splits (like the WYS series) use the Midea protocol - this driver does NOT support those. This driver is specifically for units that use the Tuya protocol, which includes:
Confirmed Working:
- Pioneer WYT (Diamante) series with TST-DIAWIFITPD WiFi module
May Also Work (same Tuya protocol):
- Cooper & Hunter (Sophia, MIA, Olivia, Dakota, Hyper Heat series)
- Confortotal CICON series
- Royal Sovereign RSAI series
- Kaisai Pro Heat+ series
- Rotenso Roni series
- Tesla Smart TAF/AUX series
- Be Cool BC series
How to tell if yours is compatible: If your mini-split uses the Tuya Smart or Smart Life app (not an IR blaster), it probably uses this protocol. The Pioneer app seems to be a rebrand of the Tuya app also.
Installation
HPM (Hubitat Package Manager):
I've submitted this to HPM but it may not be approved yet. In the meantime, you can install via URL:
- Apps → Hubitat Package Manager → Install → From a URL
- Enter: https://raw.githubusercontent.com/signal15/tuya-minisplit-hubitat/main/hubitat/packageManifest.json
Manual:
- Drivers Code → New Driver → Import
- Enter: https://raw.githubusercontent.com/signal15/tuya-minisplit-hubitat/main/hubitat/pioneer-minisplit-local.groovy
Getting Your Local Key
This is the trickiest part. You need a Device ID, Local Key, and IP address.
- Pair your device with the Tuya Smart app (not Pioneer Airlink)
- Download "Tuya Smart" from your app store
- Add your mini-split to the app - Create a free Tuya IoT developer account:
- Go to https://iot.tuya.com and register
- Create a Cloud Project (select your region, e.g., "Western America")
- Choose "Smart Home" industry and "Smart Home PaaS" - Link your app account:
- In your Tuya IoT project: Devices → Link Tuya App Account
- Open Tuya Smart app → Profile → scan the QR code
- Your devices will appear in the IoT console - Get the Local Key:
- In Tuya IoT console: Cloud → API Explorer
- Select: Device Management → Get Device Information
- Enter your Device ID and click "Submit Request"
- Copy the local_key from the response (16 characters) - Find your device IP:
- Check your router's DHCP client list, or
- Use a network scanner to find devices listening on port 6668
Device Setup in Hubitat
- Devices → Add Device → Virtual
- Name it, select Type: "Pioneer Mini-Split Local" or whatever you want to name it (Garage AC)
- Configure preferences:
- Device IP: your mini-split's IP (you should do a DHCP reservation on it so it doesn't change)
- Device ID: from Tuya IoT console
- Local Key: the 16-character key
- Protocol Version: 3.3 (try 3.4 if that doesn't work) - Save Preferences, then click Refresh
Important: Tuya devices only allow ONE local connection at a time. KILL the Tuya Smart app on your phone before testing, or Hubitat won't be able to connect.
Features
- Power on/off
- Thermostat modes: cool, heat, auto, dry, fan only
- Temperature setpoint (61-86°F)
- Fan speed: auto, low, medium, high
- Auto-reconnect on connection loss
- Status polling (configurable interval)
My Use Case & Support Expectations
I built this primarily for on/off control to participate in a power company demand response program. The basic functionality works great for my needs.
If something beyond on/off doesn't work as intended for your setup, I'm happy to merge pull requests from the community. I may or may not have time to investigate issues that don't affect my use case, but I'll do my best to help where I can.
Credits
- Based on https://github.com/ivarho/hubiern driver
- DPID mappings from GitHub - make-all/tuya-local: Local support for Tuya devices in Home Assistant Home Assistant integration
Let me know if you have questions or run into issues!
