Add geolocalization tags in radiometric calibration pictures
Front camera can now be used to take pictures
Parrot Sequoia could be directly updated with Pix4Dcapture App (Since 3.2.0 version)
Table of contents
How do I update Parrot Bluegrass?
How do I check my version of Parrot Bluegrass?
How do I check the software version of Parrot Sequoia?
How do I update Parrot Sequoia?
What are the software versions of the Parrot Bluegrass?
How do I calibrate Parrot Bluegrass?
How do I calibrate Parrot Sequoia?
How to do a radiometric calibration?
1. How do I update Parrot Bluegrass?
Parrot Bluegrass can be updated from the Pix4Dcapture Application: when an update is available, a notification inviting you to download it appears in the “Drone take-off checklist”.
The current version of Parrot Bluegrass is 4.6.2
2. How do I check my version of Parrot Bluegrass?
You can check your Parrot Bluegrass version through the Pix4Dcapture app.
1. Launch Pix4Dcapture
2. Select a mission type
3. Click “Start”: a "Drone connection" pop-up appears
4. Click "Next"
5. A "Drone take off checklist" pop-up appears, which presents the firmware version of Parrot Bluegrass.
- If the notification "Drone firmware version is ..." appears, your Parrot Bluegrass is up-to-date.
- To check this, click the notification: an "Up to date" notice appears.
- If a "New drone firmware update available" message appears:
- Click on the message
- To select the update version, click "Download"
- Click “Install” to launch the update
- The Parrot Bluegrass shuts down and restarts: "Rebooting ... please wait"
- The update finalizes when the drone reconnects: "Connect it to install"
Note:The current version of Parrot Bluegrass is 4.6.2
The current version of Parrot Skycontroller 2 is 1.0.7
3. How do I check the software version of Parrot Sequoia?
Connect to the Parrot Bluegrass Wi-Fi network and enter 192.168.42.2 IP address in your browser.
The version of the Parrot Sequoia is displayed in the bottom right of the screen: the current version of the Parrot Sequoia on the Bluegrass is 1.6.0.
4. How do I update Parrot Sequoia?
There are two ways to update Sequoia.
Using an SD card
Before you begin, make sure that the multispectral sensor is connected to the sunshine sensor.
Insert the supplied SD card into a computer and check that it does not contain any .plf file.
Download the available update file in .plf format - https://parrotcontact.parrot.com/website/download/sequoia_update.plf
Copy the file directly to the root of your SD card. Do not rename the file.
Insert the SD card into the sunshine sensor.
Power Parrot Bluegrass on.
The update is carried out automatically. During the update, the multispectral sensor LED switches off.
When the update is complete, the indicator turns green.
Note: The current version of Parrot Sequoia is 1.6.0
Using the Wi-Fi interface of Parrot Sequoia
Connect to the Wi-Fi network of the Bluegrass and enter 192.168.42.2 IP address in the web browser.
Reach the Sequoia support page: www.parrot.com/support/
Download the available update file in .plf format https://parrotcontact.parrot.com/website/download/sequoia_update.plf
Log in to the Sequoia web interface.
Click “Update Sequoia”.
A browser window opens.
Select your update file and click “Open”.
A “Send” button appears on the “Settings” page.
Click the “Send” button.
> The update start automatically. The Multi-Spectral sensor indicator switches off.
Note: The current version of Parrot Sequoia is 1.6.0
5. What are the software versions of the Parrot Bluegrass?
As of june 2018, the latest versions are:
Parrot Bluegrass: 4.6.2
Parrot Sequoia: 1.6.0
Pix4Dcapture (iOS): 3.2.0 (released June 21, 2018)
Pix4Dcapture (Android): 4.2.2 (released June 20, 2018)
6. How do I calibrate Parrot Bluegrass?
Please use Pix4DCapture App :
Before the launch of the mission, a latest pop-up appears: "Drone take-off Checklist".
This step checks the flight parameters, if a calibration is necessary, you are invited to calibrate the drone, follow the steps on the screen.
Click on "Drone not calibrated", the calibration menu appears.
Follow the instructions to calibrate the Parrot Bluegrass
7. How do I calibrate Parrot Sequoia
Attention with a drone there are 2 types of calibration: magnetometer calibration and radiometric calibration.
The magnetometer calibration: With the Parrot Sequoia embedded into the Parrot Bluegrass,
this type of calibrate is not needed because it follows the magnetometer calibration of the
Radiometric calibration: This feature is not currently available.
8. How to do a radiometric calibration
Currently, this feature is not available.This feature will be integrated into the Pix4Dcapture application.
Table of contents
How do I transfer missions’ data?
What is the NDVI index?
What are the photos used for calculating the NDVI index?
What post-processing software is compatible with Parrot Bluegrass?
What are the costs of the Pix4D and Airinov tools?
Can the post-processing of the pictures taken be made with other software than the Pix4D ag or Airinov tools?
What other data can Pix4D and Airinov tools use to assess the health and growth potential of crops ?
1. How do I transfer missions’ data?
Parrot recommends retrieving data after each flight.There are two ways to transfer your data: via the Parrot Bluegrass SD card or via Wi-Fi. Using an SD cardAttention: do not take the SD card out of the Parrot Sequoia when it is powered on.
1. Insert your SD card into an adapter; plug the adapter to your computer.
2. Recover photos by copying them from the SD card to your computer. Using Wi-Fi1. Power on Parrot Bluegrass2. Wait for the Wi-Fi network of Parrot Bluegrass to appear in the list of available Wi-Fi networks.
3. Connect your computer, tablet or smartphone to the Wi-Fi network of Parrot Bluegrass.
4. Open your Internet browser and connect to the IP address 192.168.42.25. Go to the "Gallery" tab and retrieve photos.
2. What is the NDVI index?
The NDVI index is used all around the world to monitor drought, to control and predict agricultural production, to assist in fire prevention, and to map desertification, among others. The NDVI index is a favourite for global observation of vegetation, because it compensates for changes in lighting conditions, surface slope, exposure, and other exogenous factors.The documented NDVI default equation is as follows: NDVI = ((IR-R) / (IR + R))IR = pixel values of the infrared channelR = pixel values of the red channel.
This index generates values between -1.0 and 1.0,NDVI can quickly give status to the growing area and highlight hot spots to study:
-Crop recognition: quick overview
- Identification of the spread of the disease
-Relative maturity of the culture
- Estimation of damage
3. What are the photos used for calculating the NDVI index?
How is the NDVI index calculated?Not all photos are used to estimate the NDVI index, only photos taken by the near-infrared and red "mono-spectral" camera are used.
4. What post-processing software is compatible with Parrot Bluegrass?
Parrot recommends the treatment tools of Pix4D and Airinov companies.Post-processing tools are included for the purchase of a Parrot Bluegrass:
• Airinov First + license:
This license is included with the Parrot Bluegrass for a period of 1 year from the creation of the account under: https://www.airinov.fr/cartographie-first/ Mission completed, the treatment takes place in 2 stages:
1- Download the data captured by the drone on the web platform: https://client.airinov.fr/sequoia/ or the mobile application "Map-IN" of Airinov
2- Recovery of NDVI and Zoning maps So in less than 24 hours of treatment the farmer receives NDVI maps and zonings. These maps are an accurate x-ray of the entire parcel to establish an inventory of the health of the vegetation.
• Pix4D ag license:
A trial period of one month is included for the purchase of a Parrot Bluegrass: https://pix4d.com/product/pix4dag/.
The activation code of the license is delivered with the set of the notices of the product
5. What are the costs of the Pix4D and Airinov tools?
For Airinov licenses:
Airinov First +:
In order to have a ready-to-use product, a one-year Airinov First + license is included with the Parrot Bluegrass.
Upon activation, the license includes a credit of 1400 units, which corresponds to about 150ha in the case of a flight up to 150m.Depending on the flights made and the number of photos taken, the credit account decreases at a rate of 1 credit consumed for 4 photos.
Each day, a credit of 200 units is added with a limit of 1400 credits.
It is also possible to buy credits on the AIRINOV First + platform in order to increase the treatment coverage.Further information on buying credits: https://www.airinov.fr/contact/
The following year the renewal of the Airinov First + license is: 250 € / 350 $
Note: This license is not included with the Parrot Bluegrass.
This tool allows optimization of nitrogen fertilization for straw cereals and rape crops. There are several modulation file formats, the most common are the shape and the isoXML.
Some brands of hardware require particular formats that are exclusively usable on consoles of the mark.
Further information on the Airinov Farming service: https://www.airinov.com/contact/
With the Parrot Bluegrass, a free trial period is included
• 129 Euros / Month
• 1299 Euros / year
More information on https://pix4d.com/product/pix4dag
• 260 Euros / Month.
• 2600 Euros / Year.
More information on https://pix4d.com/product/pix4dmapper-photogrammetry-software/
6. Can the post-processing of the pictures taken be made with other software than the Pix4D ag or Airinov tools?
Yes, other pieces of software exist, but Parrot only recommends the Pix4D and Airinov software and post-processing services.
7. What other data can Pix4D and Airinov tools use to assess the health and growth potential of crops ?
- NDVI: Normalized Difference Vegetation Index, preferred for global observation of vegetation because it compensates for changes in lighting conditions, surface slope, exposure and other exogenous factors
- GNDVI: Green Normalized Difference Vegetation Index provides additional information, this vegetation index is commonly used to determine the absorption of water and nitrogen in the plant cover.
- NDRE: Very similar to Normalized Difference Vegetation Index (NDVI), it uses the ratio of near infrared and red according to different mathematical formulas.Other pieces of data are available from Pix4Dag.
Table of contents
What application can I use to pilot Parrot Bluegrass?
Are the "Follow" and "Flight Plan" modules of the FreeFlight Pro application available to Parrot Bluegrass?
How can I track the flight during Pix4Dcapture mission?
What is the maximum area that Parrot Bluegrass can cover?
Is it possible to fly with multiple batteries?
Is it possible to use FPV glasses with Parrot Bluegrass?
What is the geo-fence function? How can I modify its settings?
How can I modify the recovery rate?
What is best distance between two shots for optimal coverage?
according to different mathematical formulas.Other pieces of data are available from Pix4Dag.
1. What application can I use to pilot Parrot Bluegrass?
For flight management, Parrot only recommends the use of Pix4Dcapture and FreeFlight Pro. These apps are free and downloadable from Google Play and iTunes.For a fully automated flight over crops, Pix4D capture is also required:Download Pix4Dcapture:
from Google Play store
Manual Parrot Bluegrass flights (inspection, surveillance, filming, leisure) require FreeFlight Pro. Download it:
Google Play store
2. Are the "Follow" and "Flight Plan" modules of the FreeFlight Pro application available to Parrot Bluegrass?
The Parrot Bluegrass can be controlled manually with FreeFlight Pro, but the following features of the application are not available to Parrot Bluegrass: - “Follow Me” - “Flight Plan” - “Flight Director”
3. How can I track the flight during Pix4Dcapture mission?
Only Pix4Dcapture allows you to define a precise and configurable flight plan.From the main interface of Pix4Dcapture, the trajectory of the drone appears on a map. By selecting the camera pictogram, located at the top right of the interface, you can also monitor the movements of the drone through its front camera.
4. What is the maximum area that Parrot Bluegrass can cover?
The autonomy of Parrot Bluegrass is 25min. Its ground coverage depends on its flight height and recovery rate. Indeed, the higher the flight altitude, the greater the coverage will be.
Refer to the following for estimates:
- 40m: Parrot Bluegrass can cover 10ha.
- 70m: Parrot Bluegrass can cover 30ha.
It is also possible to increase this area using Multi-battery management, but this feature is only available through the iOs version of the application.
The Airinov First + license is available for the first year after purchase, but is subject to a maximum of 1,500 credits (3,000 photos) per week.
5. Is it possible to fly with multiple batteries?
Currently, this feature is only available through the Pix4D capture application.If a Pïx4D mission has been cancelled or interrupted, the remaining part of the flight plan is saved within the same project, as a new mission. Hence it can be carried out at a later time.The procedure for creating a new mission from the remaining part of a flight which has been interrupted follows:
1. Press Save when the mission is interrupted to save the incomplete part.
2. From the Home menu, select "Project List"
3. Select the project name corresponding to mission which was interrupted.
4. On the bottom right of the interface, 2 missions appear: "Mission 1" and "Mission 2". "Mission 1" is the incomplete mission and "Mission 2" is the remaining mission.
5. Select and open "Mission 2"
6. Press "Start" and the mission will resume from the location where it was interrupted, for the remaining part of the initial mission.
6. Is it possible to use FPV glasses with Parrot Bluegrass?
Thanks to FreeFlight Pro, it is possible to fly Parrot Bluegrass using immersive FPV goggles.However, this tracking mode is not compatible with the Pix4D capture application.
7. What is the geo-fence function? How can I modify its settings?
The geo-barrier function allows users to set maximum flight distance and heights for Parrot Bluegrass.
This function is available from the setting menu of FreeFlight Pro.
8. How can I modify the recovery rate?
By default, the recovery rate of the Pix4D capture application is 80% in "front overlap" and 70% in "side overlap".If necessary, these values can be modified from the mission parameters. Considering the defined flight height and recovery rate, the application optimizes the photos-taking process.
• In the case of a high recovery rate (> 70%), the number of photos will be greater; data will therefore be more precise, but it will take more memory space.
• In the case of a low recovery rate (<70%); data precision and weight will be reduced.
9. What is best distance between two shots for optimal coverage?
The distance between 2 shots is automatically handled by Pix4D capture.The calculation depends the flight height and recovery rate defined from the Pix4D Capture interface.
Distance between shots (m)
Table of contents
What are the technical specifications of Parrot Bluegrass?
What ground does Parrot Bluegrass cover with a full battery?
What are the spectral bands of Parrot Sequoia cameras?
What are the weight and dimensions of Parrot Bluegrass and its accessories?
What is the format of pictures taken by Parrot Sequoia?
What are the meanings of the LED status of the Parrot Bluegrass?
What is the ground resolution of the images taken by Parrot Sequoia?
How do I connect to Parrot Sequoia of Parrot Bluegrass?
Which SD cards are compatible with Parrot Sequoia?
What is the definition of images captured by Parrot Sequoia?
1. What are the technical specifications of Parrot Bluegrass?
The main specifications of your equipment follow:
• Battery life: 25 min
• 6,700 mAh LiPo battery
• Coverage: 30 ha (74 ac) in one flight at a 70m (230ft) altitude
• Ground resolution: 6.6cm / px (2.6in / px) at a 70 m (230 ft) altitude
• Automatic flight plan provided by the Pix4Dcapture mobile application
• Weight: 1 850g | 4lbs
• Size: 50 x 44 x 12cm / 20 x 17 x 5in.
• Photo: 14 MP front camera
• Video: High definition 1080p
• Live video streaming: 360p / 720p
• Internal memory for recording with the front camera: 32 GB
• Resolution: 16 MP, 4608 x 3456 pixels
4 MONOBAND CAMERAS:
• Resolution: 1.2 Mpx, 1280 x 960 pixels
• Green: 550nm +/- 40nm
• Red: 660nm +/- 40nm
• Red border: 735nm +/- 10nm
• Near infrared: 790nm +/- 40nm
• SD card memory: 32 GB
• Internal video memory: 32 GB
2. What ground does Parrot Bluegrass cover with a full battery?
The cover depends on the chosen flight altitude; for example, during a 25min flight, Parrot Bluegrass covers:
- up to 10 hectares from an altitude of 40 m
- up to 30 hectares from an altitude of 70 m
Each additional battery enables you to fly 25 more minutes, hence to cover more ground. In the course of the mission, if the battery level is insufficient to complete the projected flight, we recommend activating the return to home feature to recover Parrot Bluegrass. Change the battery and restart the mission through Pix4D capture: Parrot Bluegrass resumes the mission from the location where it was interrupted.
3. What are the spectral bands of Parrot Sequoia cameras?
The Parrot Sequoia is a multi-spectral camera consisting of four narrow-band, synchronized 1.2Mpx monochrome sensors (green, red, red-edge and near-infrared), and an RGB camera.
• Monochrome camera - Green
• Monochrome camera – Red
Bandwidth: 40 nm
• Monochrome camera - Red-edge
• Monochrome camera - Near infrared
• Monochrome camera - RGB
4. What are the weight and dimensions of Parrot Bluegrass and its accessories?
The dimensions and weights of the main elements of Parrot Bluegrass follow:
• Dimensions: 50 x 44 x 12 cm / 20 x 17 x 5 in.
• Weight: 1 850 g | 4lbs
Parrot Sequoia - Camera:
• Dimensions: 59 x 41 x 28mm (2.3x1.6x1.1in)
• Weight: 72 g (2.5oz)
Parrot - Sunshine sensor:
• Dimensions: 47 x 39.6 x 18.5 mm (1.8 x 1.5 x 0.7 in)
• Weight: 35 g (1.2oz)
5. What is the format of pictures taken by Parrot Sequoia?
Data is either saved in the internal memory of the Parrot Sequoia, or saved on the SD card.They are saved in the following format:
- TIFF RAW 10-bit file for the four monochrome sensors.
- JPG file for the RGB sensor.
6. What are the meanings of the LED status of the Parrot Bluegrass?
Parrot Sequoia - Sunshine sensor
Still red: hardware malfunction
Yellow: camera start-up
Green: normal operation
Still blue: Parrot Bluegrass starts
Flashing blue: Parrot Bluegrass is ready to take off
Flashing green: Parrot Bluegrass is flying
Yellow: the product is turning off
Flashing yellow: Parrot Bluegrass update is in progress. Do not power off the drone
Flashing red and blue: Parrot Bluegrass has detected a problem with the battery.
> Contact your reseller or refer to the Parrot Bluegrass support page at www.parrot.com.
Flashing red: Parrot Bluegrass has detected an error.
> An error message appears on FreeFlight Pro application. Refer to the error code table available on the Parrot Bluegrass support page.
7. What is the ground resolution of the images taken by Parrot Sequoia?
The ground resolution of the RGB sensor and the multispectral sensor depends on the flying height. Refer to the chart to determine the flight height based on the desired resolution.
Ground resolution (cm/pixel)
Ground resolution (cm/pixel)
8. How do I connect to Parrot Sequoia of Parrot Bluegrass?
First of all, it is important to note that it is not necessary to modify or adjust the acquisition parameters of the Parrot Sequoia in the case of use with the Parrot Bluegrass.Indeed, the acquisition parameters are automatically managed by the Pix4D capture application.
To access Parrot Sequoia's photo data:- Connect to the Parrot Bluegrass Wi-Fi network
- Enter the IP address 192.168.42.2 in a web browser.
- Select the "Gallery" tab, then select either the SD card or the internal memory of Parrot Sequoia.
- Select download icon and registration directory
9. Which SD cards are compatible with Parrot Sequoia?
Parrot only recommends only the following SD cards:·
SD Card TS32GSDU3X 16 GB·
SD Card 32GB TS32GSDU3X
10. What is the definition of images captured by Parrot Sequoia?
Each monochrome sensor has a resolution of 1.2Mpx in narrow and synchronized band. The resolution of each image is 1280x960 pixels. The RGB camera captures 16Mpx with a resolution of 4608x3456 pixels.
How does Parrot Bluegrass work?
Why use Parrot Bluegrass?
Which crop types can be analyzed with Parrot Bluegrass?
How to purchase spare parts?
Can I purchase Parrot Bluegrass without Parrot Sequoia?
Can I remove Parrot Sequoia from Parrot Bluegrass?
1. How does Parrot Bluegrass work?
Parrot Bluegrass simplifies the life of farmers who wish to analyze their crops.
Data captured by Parrot Bluegrass are processed to map plots.
In hours following the flight, farmers obtain NDVI maps and zoning, which present an accurate x-ray account of the health of the vegetation.
2. Why use Parrot Bluegrass?
Parrot solutions simplify the life of farmers who need to analyze their crops.
Parrot Bluegrass is useful to:
- monitor infrastructure;
- monitor livestock;
- visualize and map crop plots;
- generate NDVI maps.
3. Which crop types can be analyzed with Parrot Bluegrass?
Thanks to Pix4D and Airinov services, Parrot Bluegrass can generate NDVI data for all types of vegetation.
In addition, the Airinov First + service is optimized for plots of wheat, barley, maize and rapeseed.
At a low flight altitude, Parrot Bluegrass offers ideal follow-up possibilities for the cultivation of fruits (strawberries, lemons, vines, grapes, and so on)
4. How to purchase spare parts?
Spare parts for the whole range of Parrot products and business solutions can be purchased from the Parrot website: https://www.parrot.com/solutions-business
Choose “All Business solutions” to access the spare parts section directly.
5. Can I purchase Parrot Bluegrass without Parrot Sequoia?
Parrot Bluegrass is a complete solution: it cannot be sold without Parrot Sequoia.
6. Can I remove Parrot Sequoia from Parrot Bluegrass?
Parrot Bluegrass offers a complete solution to farmers, in association Pix4D capture application. It is easy to use and fully autonomous.
Parrot Sequoia is fully integrated into the product, hence removing it from Parrot Bluegrass will cause warranty loss. Therefore, Parrot does not recommend removing it.