WISPR Ground Control v1.8.1 and WISPR Flight Firmware v1.8.1 is now available! Click below to download.
Battery Connection Failsafe Adjustment
This update ensures both batteries are securely connected before takeoff.
- If the failsafe is triggered, the battery is not faulty.
- To reset:
- Disconnect each battery one at a time.
- Firmly reinsert each battery individually.
Possible causes of false positives:
- High winds leading to abnormal power draw.
- Aggressive takeoffs.
- Batteries below 60% capacity at takeoff.
To minimize false positives, adjust the Battery Disconnect Failsafe Level in WisprGroundControl:
- Loose: May still detect faults but could allow some issues to pass.
- Disabled: Allows takeoff despite potential battery failure but voids the warranty unless explicitly approved by Wispr Systems Support.
⚠ Only modify this setting if false positives occur frequently.
ESC Temperature Failsafe Update
New failsafe settings prevent overheating and ensure a safe landing if temperatures rise.
Temperature-Based Triggers:
- 75°C – Prearm Error: Takeoff blocked; move the drone to a cooler location.
- 78°C – Warning: No failsafe activation yet, but monitor ESC temperature in WisprGroundControl.
- 82°C – Return to Launch (RTL): The drone will automatically return to its home location.
- 86°C – Forced Landing: The drone will initiate an emergency landing.
- 90°C – Motor Shutdown: ESCs will shut down, causing a crash.
Preventative Measures:
- The drone cools down while in flight or when powered off. Avoid leaving it powered on while stationary.
- Do not store the drone in a hot environments before use.
Photogrammetry Processing
When processing photogrammetry, you should now set the reference to EGM96 instead of Ellipsoid.
WISPR Ground Control v1.8.1
New Features
Bug Fixes
- Remove “Tolerance” when mission planning with terrain follow.
WISPR Flight Firmware v1.8.1
New Features
- Added additional battery failsafe checks for safety.
- Added additional failsafe and warnings for ESC temperature.
Bug Fixes
- Changed parameters responsible for altitude errors when using terrain follow during mission planning
