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