GUANDALINI PPK Operator's manual

MANUAL AND DOCUMENTATION
GUANDALINI
PPK
ASSEMBLY MANUAL FOR KIT PPK ON
DJI MAVIC 2 PRO
São Paulo, 03rd March, 2021
Revisão nº 4
Manual developed by Guandalini Equipamentos Topográficos Technical Team

ASSEMBLY MANUAL FOR KIT PPK ON
DJI MAVIC 2 PRO
2
Av. Paulo VI, 2140 (new n 372) • Sumaré • CEP 01262-010 • São Paulo • SP
[phone] • www.guandalinibr.com
Sumário
1. KIT PPK...................................................................................................................... 3
2. ASSEMBLING THE KIT PPK ON MAVIC 2 PRO............................................................ 4
2.1. DRONE MOUNTING ........................................................................................... 4
2.1.1. STEP 1 ......................................................................................................... 4
2.1.2. STEP 2 ......................................................................................................... 4
2.1.3. STEP 3 ......................................................................................................... 5
2.1.4. STEP 4 ......................................................................................................... 6
2.2. HOW TO CHARGE BATTERY FROM THE PPK KIT ................................................ 7
2.2.1. CHARGER IMAX B3...................................................................................... 7
2.2.2. AC/DC ADAPTER CHARGER....................................................................... 10
2.3. HOW TO MEASURE THE BATTERY CHARGE OF THE PPK KIT ........................... 11
2.3.1. LIPO BATTERY METER............................................................................... 11
3. CONFIGURATION DJI GO ........................................................................................ 14
4. FLIGHT PROCEDURES.............................................................................................. 17
4.1. STARTING THE BASE......................................................................................... 17
4.2. POSITIONING THE DRONE................................................................................ 17
4.3. HOW TO CONNECT THE CONTROL MODULE................................................... 18
4.4. INITIALIZING THE SYSTEM................................................................................ 19
4.5. SHUTTING DOWN THE SYSTEM ....................................................................... 21

ASSEMBLY MANUAL FOR KIT PPK ON
DJI MAVIC 2 PRO
3
Av. Paulo VI, 2140 (new n 372) • Sumaré • CEP 01262-010 • São Paulo • SP
[phone] • www.guandalinibr.com
1. KIT PPK
The PPK kit is developed by the engineering team at Guandalini Equipamentos
Topograficos and can be integrated into your MAVIC 2 PRO. The kit consists of the Reach
M + card, an adapted GNSS antenna and the Guandalini PPK software (Figure 1).
Figure 1 - Guandalini PPK Kit
In Figure 2, observe the result of the flight with a height of 80m.
Figure 2–Mean error obtained
Mean error: 2,7cm

ASSEMBLY MANUAL FOR KIT PPK ON
DJI MAVIC 2 PRO
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Av. Paulo VI, 2140 (new n 372) • Sumaré • CEP 01262-010 • São Paulo • SP
[phone] • www.guandalinibr.com
2. ASSEMBLING THE KIT PPK ON MAVIC 2 PRO
2.1. DRONE MOUNTING
2.1.1. STEP 1
With the KIT PPK GUANDALINI in hands, remove the control module from the foam
cradle, shown in Figure 3.
Figure 3 –Control Module Guandalini PPK.
2.1.2. STEP 2
Insert the part with the light sensor into the front right leg of your MAVIC 2 PRO. Raise
the piece and rotate it clockwise to fit the drone's leg. Use velcro to secure the piece.

ASSEMBLY MANUAL FOR KIT PPK ON
DJI MAVIC 2 PRO
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Figure 4 –Insert the light sensor
Figure 5 - Positioning of the light sensor on the drone
2.1.3. STEP 3
Position the control module on the top of the drone, paying attention to the light sensor
cable that goes behind the MAVIC 2 PRO's right arm. Push or pointless module where
the module does not involve drone. Ensure that the cable guide is placed under the right
front arm and has a position fixed with Velcro (Figure 7)

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DJI MAVIC 2 PRO
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Figure 6 - Indication of the positioning of the control module on MAVIC 2 PRO.
Figure 7 –Light sensor cable guide
2.1.4. STEP 4
Remove the battery from the foam cradle and place it in the control module with the
cables to the left. Make sure to tie the velcro tape to the battery and leave the connector
with 3 cables attached to the tape as well, as shown in Figure 8. After this step, your
MAVIC 2 PRO is ready for use.

ASSEMBLY MANUAL FOR KIT PPK ON
DJI MAVIC 2 PRO
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Figure 8 - Positioning the battery on the control module.
Figure 9 - Equipment ready for flight.
2.2. HOW TO CHARGE BATTERY FROM THE PPK KIT
2.2.1. CHARGER IMAX B3
For battery recharge, a charger is included (Figure 10Figure 10).

ASSEMBLY MANUAL FOR KIT PPK ON
DJI MAVIC 2 PRO
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Av. Paulo VI, 2140 (new n 372) • Sumaré • CEP 01262-010 • São Paulo • SP
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Figure 10 - Charger included with the PPK Kit
ATTENTION!!!
1. Remove the battery from the charging procedure kit;
2. The charger must only be connected to the outlet if the battery is connected;
3. Never charge, discharge, use, or store a damaged or swollen LiPo battery (Especially
in the event of a fall or crash). Immediately follow appropriate disposal protocols;
4. Avoid buying used LiPo batteries;
5. It is essential that all cells in the LiPo battery maintain the same voltage across all
cells at all times. If the voltages between the cells differ too much from one another,
the battery can become unstable and dangerous;
6. Charge your battery in a location away from flammable objects (such as wooden
tables or carpet. The ideal surface for charging and storing LiPo batteries is concrete
or ceramic). LiPo battery fires are rare, however, they can happen;
7. Never leave your LiPo batteries charging alone. If the battery starts to swell, smoke
or catch fire, you need to deal with the situation immediately;
8. Never overcharge a LiPo battery. Normally a full charge is 4.2v per cell;
9. Never discharge a LiPo battery below 3.0v per cell. The ideal is that you never let
go below 3.2V per cell to maintain a healthy battery;
10. Never leave LiPo batteries at a full charge for more than 2 or 3 days. If by the 3rd
day you realize that you will not be using the battery, discharge the battery to 3.6V-
3.8V per cell for safe storage;
11. Always store LiPo batteries at room temperature. Do not store in a very hot, or
very cold place;
12. Remember heat is the number one enemy of LiPo batteries. The hotter your
batteries get, the shorter their service life will be. Never charge a battery that is still
warm from use, and never use a battery that is still warm;
The recharge procedure is:

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1. Connect the battery to the charger (Figure 11)
2. Connect the charger to the power plug
Figure 11 - Connecting the battery to the charger.
When connecting the battery to the charger, the ‘cell 1’ and ‘cell 2’ lights will light red
and the ‘cell 3’ light will light green (Figure 12).
Figure 12 - Battery being recharged.
When charging is complete, all lights will turn green.
After full recharge the battery lasts for 3h 58min. As it is a LiPo battery, full discharge is
not recommended, as it may stop working. So it is recommended that it be used only
for 3h 30min. After that, recharge it. Remembering that the voltage in each cell must
not be less than 3V.

ASSEMBLY MANUAL FOR KIT PPK ON
DJI MAVIC 2 PRO
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2.2.2. AC/DC ADAPTER CHARGER
The new kits PPK are shipped with this battery charger (Figure 13).
Figure 13 - AC/DC adapter charger.
This charger has a status LED. When the battery is being charged, the LED lights red;
when charging is complete, it switches to green. See the figure below.
Figure 14 - Charging LED indication

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DJI MAVIC 2 PRO
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2.3. HOW TO MEASURE THE BATTERY CHARGE OF THE PPK
KIT
Figure 15 - Battery life graph and LED colors.
The battery level is indicated by the color of the LED located above the control module.
After initialization (5 minutes), the LED flashes every 30 seconds and its color represents
the battery charge (Figure 15).
GREEN: 100 80%
CYAN 80-50%
PURPLE 50-20%
RED 20-0%
2.3.1. LIPO BATTERY METER
It is possible to measure the battery voltage using a LiPo battery voltage meter (Figure
16).
Figure 16 - Lipo Battery Meter

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DJI MAVIC 2 PRO
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Av. Paulo VI, 2140 (new n 372) • Sumaré • CEP 01262-010 • São Paulo • SP
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This meter displays the total battery voltage (Figure 17) and the voltage in each cell
(Figure 18 and Figure 19).
To identify which voltage the display will show: 'ALL' (Figure 17 A) for the battery voltage,
‘-1-‘ (Figure 18 A) for the cell voltage 1 e ‘-2-‘ (Figure 19 B) for cell voltage 2. Total voltage
is important for us, which is shown after the writing 'ALL' (Figure 17 B). The voltage
values are shown in Volts.
Figure 17 - A) Total battery voltage indicator; B) Total battery voltage
Figure 18 - A) Cell voltage indicator; B) Cell voltage 1
A
B
A
B

ASSEMBLY MANUAL FOR KIT PPK ON
DJI MAVIC 2 PRO
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Av. Paulo VI, 2140 (new n 372) • Sumaré • CEP 01262-010 • São Paulo • SP
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Figure 19 - A) Cell voltage indicator; B) Cell voltage 2
The Table 1 shows the relationship between voltage and battery charge percentage.
VOLTAGE (V)
BATTERY CHARGE (%)
8.4
100%
7.9
75%
7.4
50%
6.9
25%
6.4
0%
Table 1 –Relationship between voltage and battery charge
A
B

ASSEMBLY MANUAL FOR KIT PPK ON
DJI MAVIC 2 PRO
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Av. Paulo VI, 2140 (new n 372) • Sumaré • CEP 01262-010 • São Paulo • SP
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3. CONFIGURATION DJI GO
For the correct operation of the PPK Kit developed by Guandalini, two configurations
are required on the DJI GO 4.
Download the DJI GO 4 app (Figure 20).
Figure 20 - DJI GO 4 app icon
After downloading, turn on the drone, connect the phone / tablet to the remote control
and open the DJI GO 4 app. With the app open, access the settings menu as shown in
Figure 21.
Figure 21 - DJI GO 4 Screen
Then, open the settings menu tab (Figure 22) and then access the advanced settings
(Figure 23) click on the “Turn on Head LEDs” option to turn on the front LEDs (Figure 24).
Figure 22 - Settings Menu

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DJI MAVIC 2 PRO
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Figure 23 - Advanced Settings
Figure 24 - Advanced Settings –“Turn on Head LEDs”
It is now necessary to enable the setting so that the LEDs will automatically turn off when
capturing photos. To do this, open the camera settings (Figure 25), then click on
advanced settings (Figure 26) and then enable the option “Head LEDs auto turn off”
(Figure 27).

ASSEMBLY MANUAL FOR KIT PPK ON
DJI MAVIC 2 PRO
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Av. Paulo VI, 2140 (new n 372) • Sumaré • CEP 01262-010 • São Paulo • SP
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Figure 25 - DJI GO 4 Screen
Figure 26 - Camera Settings
Figure 27 - Advanced Camera Settings

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DJI MAVIC 2 PRO
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4. FLIGHT PROCEDURES
4.1. STARTING THE BASE
Before starting the flight procedures, it is necessary to install a GNSS receiver that will
serve as a base in the field, this base must be close to the takeoff location and should
collect raw data, preferably in Rinex format and the recording rate 1Hz (1 observation
per second). This collection must take place before, during and after the flight
procedures, thus ensuring that the entire flight interval is covered with data from this
database, thus making post-processing possible.
4.2. POSITIONING THE DRONE
Attention! The drone should be positioned close to the base that is collecting raw data.
If the drone is positioned 500 meters from the base, it must be at least 10 minutes
with the PPK kit on before taking off.
It is important that the takeoff is made from a point of known coordinates and that this
point is visible to be used as a control.
To position the drone correctly, place the optical center of the camera coinciding with
the center of the control point as shown in the Figure 28.

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DJI MAVIC 2 PRO
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Av. Paulo VI, 2140 (new n 372) • Sumaré • CEP 01262-010 • São Paulo • SP
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Figure 28 - Drone positioned with the optical center of the camera in the center of the control point.
4.3. HOW TO CONNECT THE CONTROL MODULE
First, it is necessary to place the battery in the control module and secure it as shown in
the Figure 29.

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DJI MAVIC 2 PRO
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Av. Paulo VI, 2140 (new n 372) • Sumaré • CEP 01262-010 • São Paulo • SP
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Figure 29 - A) Place to put the battery; B) Proper allocation of the battery on the control module
The Figure 30 shows the battery power cable connected to the control module.
Figure 30 - Connecting the battery to the control module
4.4. INITIALIZING THE SYSTEM
When the Reach M + is turned on, the red LED (Figure 31) will turn on, indicating that
the system has started booting, maintaining itselfcontinuously for a period of 4 minutes.
A
B

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DJI MAVIC 2 PRO
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Figure 31 - Boot Status LED
After 4 minutes of equipment initialization, the LED will flash for 1 minute. It is suggested
that at this time connect the drone, so that it marks the home point. When the LED goes
out, start the flight.
ATTENTION: During the boot, you should not approach the drone, to avoid interference
in the reception of signal at the Reach M + module antenna. Keep a distance from the
drone ( Figure 32) within a radius of 5 meters.
Figure 32 - Keep distance from the drone