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Version: Albatross (3.0 Beta)

Ground power monitoring

A supported Ground image can report supply voltage and current from an INA219 sensor. QOpenHD can display the reading in the Ground status card and on the HUD.

Connect the INA219​

With power disconnected, connect the module’s I²C lines and logic supply to the Ground board. Use the board’s pinout and the module’s voltage and current ratings. To measure load current, wire the module’s shunt in series with the positive supply feeding the load you want to measure.

INA219 wiring example showing the I²C connection and supply measurement path

Example INA219 module pinout

Check the reading in QOpenHD​

  1. Open Status and check Battery on the Ground unit. If it says Not reported, check the I²C wiring and whether the Ground image supports the sensor.
  2. Open OSD & Application → Widgets → Power and enable Ground Battery to show the reading on the HUD.
  3. Compare the displayed voltage with a meter before relying on the reading.
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