Improved pitch calculations. GPS bug fix.

• Improved pitch calculations.
• GPS bug fix.

.sh update only.

Sensor AHRS beta

• Added MPU-9250/BMP280 sensor based AHRS implementation from @westphae.
• Changed green LED function when "Maintenance required". When a critical system error exists (displayed on the main page of the webui), the GDL90 "maintenance required" bit is set and the green LED blinks.

Make sure to refresh browser cache to see new features placed in the webui relevant to AHRS calibration (settings) and the different "GPS/AHRS" page display.

Any sensor board with the MPU-9250 connected to the I2C pins on the RPi should work fine (the Stratux sensor board, RY836AI, OpenFlightSolutions AHRS, and a few other ones around).

AHRS data won't display in ForeFlight.

Fixed bug causing infrequent ADS-B disconnects.

• Remove SD card auto-expand feature added in v1.2r1.
• Remove development tools from release image.
• Limit CPU speed (lower power consumption and potential EMI benefits).
• GPS handling improvements.

Partition auto-expanding (first boot) was added in v1.2r1 and caused and increase in failed SD card reports. This release removes the feature and keeps the image at the same fixed size as previous to v1.2r1, but removes some development tools. There are two images in this release - the normal production image and a "-dev" image for those that wish to recompile stratux and are able to use their full SD card without issue.

GPS-based AHRS. Serial output. Bugfixes.

Changes since v1.0r1:

• Serial output for CP2102 with a programmed EEPROM.
• "Developer mode" webui menu.
• UAT statistics display.
• Change green LED meaning on RPi - was: filesystem write, now: Stratux running.

Minor changes since v1.1b1:

• Command line utilities managing ssid/Wi-Fi settings.
• Reduced GDL90 traffic report size to 35 targets per message.
• Fan control PWM script improvements.

GPS attitude. Serial output. Cleanup. Assorted bug fixes.

• Removed experimental RY835AI support (except for u-blox GPS portion).
• Added experimental PingEFB support.
• Added GPS attitude (when a GPS unit is detected, GPS attitude is always calculated and sent to EFBs with Stratux AHRS support).
• webui cleanup.
• Added command line utilities (ssid/eeprom programming/etc).
• GPS implementation bug fixes and improvements.
• Serial output for CP2102 with a programmed EEPROM.
• "Developer mode" webui menu.
• UAT statistics display.
• Other various webui improvements and bug fixes.
• Change green LED meaning on RPi - was: filesystem write, now: Stratux running.

Stability and bug fixes.

Current recommended hardware:

Main board: Raspberry Pi 3

GPS

• Vk-162 (external mount)
• Vk-172 (direct connect to USB on RPi3)

SDR: Any R820T(2) based device.

Fixed .sh update bug when using old (<v0.8r2) base image.

• Fixed .sh update bug when using old (<v0.8r2) base image.
• Throw error when old image detected and use old startup method.

Bug and stability fixes.

• Performance improvements.
• Fixed some crashing issues on malformed UAT packets.
• Mode S -> tail number decoding for N and C registrations.
• Ownship traffic suppression (beta).

Stability fixes. Logging changes. WebUI improvements.

• Logging changes.
• hostapd manager script (change SSID at command line, etc).
• Fix Geometric Ownship Altitude overflow.
• WebUI improvements: distance/bearing to traffic (when GPS enabled), reboot button fixes.
• Stability fixes.
• Updated Raspberry Pi firmware (with bugfixes) in image.

Bug and stability fixes.

• Added "Raspberry Pi 3 Model B" support to image (use the integrated Wi-Fi, not an external dongle as required with older hardware).
• Upgraded Raspbian and Raspberry Pi firmware on image.
• Removed client expiry code - caused issue on units with a GPS installed that was not getting a fast GPS lock (WebUI shows messages being received, EFB does not).
• Dongle handling improvements.