====== Gyro Logger user Manual ======

{{:public:cold_shoe_mount_gyrologger_4.jpg?300|}}{{:public:naked_bmpc_1.jpg?300|}}


===== Technical data =====


  * Input Voltage:		     2 - 6S
  * IMU type:			     BMI270
  * Max log frequency:               1.2kHz
  * Log type: 		             Betaflight Log
  * optional external trigger: 	     momentary switch, PWM 
  * LED indicator: 		     RGB LED

===== LED status indicator =====
New versions of our logger (start 05.2023) utilize a custom Betaflight Firmware to display the current BlackBox status. The following colors are used for each BlackBox State if you choose ARM State as LED function (default config):

  * Running is **green** but can be changed via Betaflight Config
  * Disabled, Stopped, Paused, Shutting Down is **red** but can be changed via Betaflight Config*
  * Prepare Log File, Cache Flush, Start erase is **blue** and can't be changed
  * Send Sysinfo, Field, GPS and Slow Headers is **yellow** and can't be changed
  * Erasing and Start Erasing is **orange** and chan't be changed


*To change these colors head to the Betaflight LED Config and set the colors you want under ARM State called "Armed" and "Disarmed".


===== Mechanical setup =====


**Naked BMPCC 4k/6k**

{{:public:img_0085.jpg?200|}}

  * best placement: Behind the lens
  * Gyroflow IMU orientation: yXZ
  * Coldshoe mount, SD card pointing forward. 
  * Gyroflow IMU orientation: XYZ


**RED Komodo**

  * best placement: Use ¼” screw on top of the camera / smallrig case, SD card pointing forward. 
  * Gyroflow IMU orientation: 



**Generic**

  * best placement: use ¼” screw on top of the camera, SD card pointing forward. 
  * Gyroflow IMU orientation: depends on camera model. 

===== Operation workflow =====

 
  - Power on the logger/drone/camera
  - After powerup, the logger must initialize. This takes roughly 2 seconds of time during which is has to be steady (similar as with the drone flight controller powerup)
  - After the initialization the logging automatically starts
  - After landing, turn of the logger by flipping the switch
  - Remove the SD card and transfer the logs to your computer
  - Import the Video, Lens profile and Log file into Gyroflow
  - Select the correct gyro orientation
  - Estimate gyro offset by comparing liftoff time in Log and Video (Blackbox explorer helps!)
  - Press auto sync and the video and log file should be synced


===== Firmware Download =====
{{ :public:betaflight_4.4.2_stm32f7x2_gyrologger_pinio_led.hex |}}

{{ :public:diff_custom_led_blackbox_firmware_pinio.txt |}}

**Instructions for Firmware Update**
  - Download the .hex and .txt file that you'll find above to your computer
  - Download and install [[https://github.com/betaflight/betaflight-configurator/releases|Betaflight Configurator]]
  - Open up the Gyrologger and connect via microUSB cable to computer
  - Open Betaflight Configurator and connect to the flight controller by selecting the right COM-Port and clicking on the "Connect" Button
  - Click on the "Activate Boot Loader / DFU" Button
  - Click on the "Update Firmware" Button
  - Click on the "Load Firmware [Local]" Button and select the downloaded .hex file
  - Click on the "Flash Firmware" Button and wait till flashing is finished
  - Connect to the flight controller by selecting the right COM-Port and clicking on the "Connect" Button
  - Click on the "CLI" Menu in the bottom left corner
  - Copy the content of the downloaded .txt file into the command line and hit enter
  - Now type save into the command line and hit enter
  - Your Gyrologger has been updated