Hardware Guide
3 min read
Updated February 1, 2026
Understanding your Mysa for Mini-Splits device controls, display, and reset options.
Physical Controls
Front Face
The front face contains:
- LED Display — Shows current room temperature, mode, and status
- Capacitive Touch Buttons — Up/Down arrows for temperature adjustment
Side Buttons
| Button | Label | Function |
|---|---|---|
| Up arrow | ↑ | Increase temperature setpoint |
| Down arrow | ↓ | Decrease temperature setpoint |
| Mode | M | Cycle through modes (Heat/Cool/Dry/Fan/Auto) |
| Fan | Fan icon | Cycle through fan speeds |
Up arrow
Label↑
FunctionIncrease temperature setpoint
Down arrow
Label↓
FunctionDecrease temperature setpoint
Mode
LabelM
FunctionCycle through modes (Heat/Cool/Dry/Fan/Auto)
Fan
LabelFan icon
FunctionCycle through fan speeds
Display Information
Main Display
The display shows:
- Current room temperature (large numbers)
When Adjusting Temperature
When you press Up or Down:
- Display switches to show setpoint (target temperature)
- Returns to ambient temperature after a few seconds
Mode Indicator
Mysa indicates the current mode using the colored LEDs on the side of the device. The LED color changes based on which mode is active.
Changing Temperature Format
To switch between Celsius and Fahrenheit:
- Unplug Mysa from power
- Hold the Down arrow
- While holding, plug Mysa back in
- Release when the display changes
Reset Procedures
Wi-Fi Reset
Resets network settings only — keeps IR codes and preferences:
- Press and hold Up + Down arrows simultaneously
- Continue holding until countdown completes
- Mysa enters pairing mode
- Re-connect through the Mysa app
Factory Reset
Resets everything to factory defaults:
- Press and hold M + Fan buttons simultaneously
- Hold until display resets
- All settings are cleared
- Device must be re-paired and IR codes re-learned
Power Reboot
Simple restart for minor issues:
- Unplug the USB cable from Mysa
- Wait 10 seconds
- Plug back in
IR Transmitter
The front face contains an infrared transmitter that sends commands to your mini-split.
- Mysa sends IR commands in a 270° arc
- IR signals can bounce off walls — doesn't need to point directly at the unit
- Keep the front face clean for best signal
Sensors
| Sensor | Accuracy | Location |
|---|---|---|
| Temperature | ±0.3°C (±0.5°F) | Internal |
| Humidity | ±2% | Internal |
Temperature
Accuracy±0.3°C (±0.5°F)
LocationInternal
Humidity
Accuracy±2%
LocationInternal
Sensors measure conditions at Mysa's location, not at your mini-split.
Power Requirements
- Input: 5V, 6W micro USB
- Standby power: 650mW
- Power (display on): 1W
- Adapter: 5.2V, 1.2A (included)
- Cable: 6ft / 2m micro USB (included)
- Monthly consumption: ~1.44 kWh
Note Mysa requires constant power and cannot operate on batteries.
Mounting
Wall mount (adhesive):
- Use included wall mount with adhesive strips
- Arrow on mount must point UP
- Press firmly for 30 seconds
- Best on smooth, clean surfaces
- Keep at least 20 cm (8 inches) from people
Tabletop:
- Use included stand
- Align pins with holes on back of device
- Push until secure
Technical Specifications
| Spec | Value |
|---|---|
| Dimensions | 4.3" × 3.0" × 0.6" (110 × 75 × 15 mm) |
| Weight | 115.3g |
| Display | 5 × 7 LEDs with capacitive touch buttons |
| Wi-Fi | 802.11 b/g/n @ 2.4 GHz |
| Bluetooth | Yes (for pairing) |
| IR Range | Up to 25-30 feet |
| Operating Temp | Indoor use only |
| Color | White / Black |
Dimensions
Value4.3" × 3.0" × 0.6" (110 × 75 × 15 mm)
Weight
Value115.3g
Display
Value5 × 7 LEDs with capacitive touch buttons
Wi-Fi
Value802.11 b/g/n @ 2.4 GHz
Bluetooth
ValueYes (for pairing)
IR Range
ValueUp to 25-30 feet
Operating Temp
ValueIndoor use only
Color
ValueWhite / Black
Important Do not remove the faceplate — this voids the warranty.
Resources
Need Help?
Email: support@getmysa.com