ForeFlight AHRS/ID packet added. Minor bug fixes.

• Adds ForeFlight AHRS/ID packets: https://www.foreflight.com/connect/spec/.
• Minor bug fixes.

Logging improvements.

v1.4r4

Change CircleCI to test to build master.

Fan controller improvements.

• Fixes a bug in the fan controller code.

GPS lock improvements.

• Delay SDR startup (1m30s) to expedite initial GPS lock.
• Minor webui updates.

Improved sensor AHRS.

• Improved sensor AHRS.
• WebUI changes (make sure to clear your browser cache).

AHRS Improvements.

• Calibration routine improvements.
• Pitch calculation improvements.

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.