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Elios 2 Release note

v1.7 January 2022

New features:

  • Compatibility with new E2RAD sensor payloads (LOW, MID, HIGH level)

  • When a battery error is detected the drone goes into Autoland mode and the tablet vibrates for 3 seconds to warn the pilot.

  • LED blink patterns updated, they will now blink red in case of a battery warning or a critically low battery.

Bug fixes

  • Wifi streaming reliability improved

  • Transmission status logging fixed

  • Maintenance panel information no longer gets stuck in 'loading' status

v1.6 August 2021

New features:

  • New Signal Strength indication - The two indicators on the top left corner now indicate downlink and uplink RSSI instead of a quality indicator as it’s more gradual and could prevent incidents in tricky environments such as sewers.

  • Battery SoC displayed up to 60 cycles instead of 40

  • Cockpit is now available in French, Spanish, German and Russian. Error codes added to warning messages.

Bug fixes

  • Distance Lock controls fixed for Mode 1

  • Big warning appearing in Cockpit about exceeded number of cycles of batteries also for new batteries fixed

v1.5 August 2021

New features:

  • Integration with Elios 2 RAD Radiation detector payload

Bug fixes

  • Drone is no longer disarmed when performing the arming sequence when already armed

v1.4 November 2020

New features:

  • Photogrammetry flight mode now has grid lines overlaid to help with managing overlap during flight.

  • Failsafe: After loss of signal the drone maintains altitude for 15 seconds, then starts the auto descent.

  • Firmware update is only possible if drone battery voltage is higher than 16V New warnings to communicate about hardware issues in the transmission system.

  • Added warnings to communicate that motors are approaching or have exceeded the maximum recommended replacement interval of 25 flight hours.

  • Added warnings to communicate that the battery is approaching or has exceeded the maximum recommended lifetime of 40 discharge cycles.

  • Battery SoC estimation is shown only if battery cycles < 40 Warning to detect defective battery through high cells imbalance

  • General improvements in vertical stability

Bug fixes:

  • Camera Initialization improved to avoid recording error. Drone cannot be rearmed immediately after disarming to ensure proper video file termination.

  • General bug fixes and improvements

v1.3 March 2020

New features:

  • Distance lock setpoint is now tunable

  • Improved tuning for auto closeup LED

  • Drone blinks during arming sequence to estimate battery internal resistance

  • Drone will not arm if battery is outside temperature range Added more info to payload logs

  • Avionics watchdog to debug avionics Checks if camera SD Card is at least 64GB

  • Will not start recording video if there is no space on SD card

  • Better motion detection for IMU calibration

  • Improved altitude control

  • Live video feed switches to SD composite if HDMI error is detected

Bug fixes:

  • Removed glitches in camera warnings

  • Improved yaw control

  • Corrected trim implementation

  • Improved drone stability on the ground

  • Fixed logging issues

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