Navatics Mito User manual

This document serves as a guideline to operate
Navatics underwater vehicle, MITO.
1. Product Profile
2.1. Introduction
Navatics MITO is an underwater vehicle that can
be used to explore depths. It uses four highly
efficient thrusters to stabilize and maneuvre itself
underwater. It captures 4K videos and 12
megapixel photos, and is capable of carrying extra
payload without deterioriation in performance.
MITO boasts 4 knots (2 m/s) maximum speed. The
battery, designed to be replaceable, runs for 2
hours when fully charged. The tether floatation
comes with 4 hours runtime, equipped with solar
panel to extend usage duration.
2.1. Features Highlights
Navatics MITO is designed to be small and stable.
The size and battery capacity is designed to fit the
airlines specification for carry-on luggage.
Camera: MITO shoots 4K video up to 30 frames
per second, and 12 megapixel stills. The larger
sensor size improves MITO's low light performance.
Controller: Navatics MITO is equipped with four
thrusters that enables it to manuevre freely
underwater. It is capable of tilting up and down to
450angles while holding its depth, heading, and
orientation. The controller is very simple, it is very
easy to pick up.
Video Transmission: Navatics MITO is equipped
with Sensethink's Senseplay video transmission
system, allowing it to transmit 1080p HD video at
30 fps from 500 m away.
2. Underwater Vehicle: Navatics
MITO
This section introduces steps to setup and calibrate
MITO's array of sensors before using it.
3.1. Using Navatics MITO
3.1.1 Starting Up Navatics MITO
Navatics MITO comes with a tether floatation and a
Senseplay Race controller. It comes assembled
with propellers. The instructions below is provided
to start MITO.
1) To start MITO, first open the battery
chamber at the bottom part of Navatics
MITO. Connect the battery cable to the
battery's waterproof connector, then push
the battery into the chamber to lock it in
place.
2) To turn it on, switch on the battery and
close the chamber.
3) When started, MITO is going to check for
the states of its sensor. In the process, it will
turn on LED lights as an indicator, as well
as changing the color of LED ring to
indicate the process. Once all sensors are
calibrated, the LED lights will turn off and
the LED ring will turn white. If the process is
stuck, find the Sensor Calibration
instructions on section 3.2 on Sensor
Calibration
3.1.2 Starting Up Tether Roller
The tether roller is a floataion device that receives
the data from Navatics MITO and transmit it to
Senseplay Race remote controller. The steps to
start a roller is a following:
1) Next, connect the tether from the tether
floatation to the top connector of the robot
and turn on the tether by pulling up the
antennae
2) There are 2 LED indicators on the tether
roller, power indicator and signal indicator.
Blinking signal indicator shows that the
tether roller is ready to transmit video and
data to the remote controller.
3) When using the tether roller, it is strongly
recommended to cover the Type-C charging
port with the provided rubber cover attached
to the charging port
3.1.3 Starting Up Remote Controller (Senseplay
Race)
The Senseplay Race remote controller is the
transciever device that allows Navatics smartphone
app to receive video from Navatics MITO, and
allows users to send control commands to Navatics
MITO. To use Senseplay Race controller, users
can follow the following step:
1) If users have not bind the controller with
Navatics account, please check section
4 for account registration and device
binding
2) IF the device binding is completed, users

can connect smartphone app to Senseplay
Race controller via USB port on top of the
controller. There are 2 ports in the controller,
a Type-A USB port for connecting
Senseplay Race to phone, and another
Type-C USB port for charging.
3) First, turn on remote using the power button
at the bottom of the Remote
4) In the middle of the remote there is a switch
users need to select between Android app
and iOS app, select the appropriate mode
depending the smartphone type.
5) Once the users open the app, the remote
will start searching for the latest device it is
connected to, or users can select another
device to connect to. Once connected,
users can start streaming and controlling
Navatics MITO
3.2. Sensor Calibration
When first receiving MITO, it is recommended for
users to calibrate the gyroscope and compass. In
addition, compass recalibration is recommended
when diving in new place, to adjust to the magnetic
condition of the dive site. The instructions below
provides guidelines to calibrate the compass.
1) First, start MITO and the tether floatation,
and connect the Senseplay Race to MITO.
(Follow section 3.1 for more details).
2) Start the Navatics app in the smartphone.
3) Go to Camera View and click on
parameters settings icon to open the dialog
box. Go to the calibration page (Check
section 3.4.2 for more details).
4) Place MITO on a flat ground, let is still, and
press calibrate gyroscope. MITO will be
restarted and the LED light will flash. The
calibration process runs for around 1
second each.
5) Finally, press calibrate compass. The
calibration process is as following:
1) Hold MITO with the bottom facing the
ground. Rotate horizontally for 360
degrees.
2) Once the calibration finished the LED
will be turned off. Now MITO is ready to
dive.
Figure 3.1 –Calibration Sequence: 3600 horizontal
rotation
3.3. Vehicle Motion Controller
Controlling MITO is very simple. Users are only
required to move it in horizontal plane. The vertical
plane and orientation control has been taken care
of by the vehicle control system. There are a set of
motion users can actuate with MITO, which are:
1) Dive → let MITO dive to depth by setting a
target depth. It is capable of diving and
rising while holding its attitude, subject to its
thruster design
2) Tilt → MITO is capable of tilting and holding
its attitude at a certain pitch angle. This,
however, compensates the maximum
horizontal speed it can actuate
3) Horizontal drive → MITO is capable of
changing heading and move in the
horizontal plane at any given pitch angle
and depth
There list of automated motion is:
1) Set to flat → Set MITO back to flat
orientation
3.4. Controlling Navatics MITO
3.4.1 Basic Motion Control
Using Senseplay Surf controller to control MITO is
really simple. The control scheme is described
below.
Figure 3.1 –Senseplay Race Control Scheme

3.4.2 Smartphone Application
The smartphone app is integral in operating MITO.
It provides important information required to drive
MITO, as well as vehicle settings. Users can also
use the app to access the photos taken, then apply
color correction filter to it.
Before entering the camera view, users would
require to bind the Navatics MITO device and the
remote to their account. To do so, follow the
instructions in section 4: Account Registration and
Device Bindings. Enter camera view by pressing
“Connect to MITO” button. The camera view is
shown below.
Figure 3.1 –App Camera View
Battery Indicator
Battery indicator shows the battery of MITO, the
tether floatation, and the remote
Heading Indicator
The heading indicator is relative to controllers
orientation. The Red North Arrow shows where
the North is relative to the users, and the MITO
icon shows where it is heading.
Pitch Indicator
The MITO Icon shows MITO's current pitch attitude
Depth Indicator
The depth indicator shows the controllable target
depth (right), as well as the MITO's current depth
(left)
LED Indicator
Shows the current LED level. Each bar represents
a level of LED intensity.
Temperature Indicator
Shows the current temperature in MITO's
surrounding
Motor State Indicator
Motor state indicator shows the current state of
thrusters. When the thrusters are turned on, the
propeller icon will start rotating. Clicking on the
propeller icon will show average rotation speed of
each thruster.
Parameters Settings
There are three parameters setting that can be
changed. The first page controls MITO's limiter.
There are 5 settings that can be changed, which
are:
Maximum Yaw Speed
Maximum Forward/Backward Speed
Maximum Dive/Rise Speed
Maximum Depth
Maximum Pitch Angle

Figure 3.2 –Vehicle Limiter Settings
Once the values are set, click on “Save” to change
the settings, or “Reset” to return it to the previous
value.
Figure 3.3 –Vehicle Sensor Status and Calibration
Page
The second page is the calibration page. Each row
contains status of the sensor, and a Calibrate
button that would pop out a help page telling the
users how to calibrate Navatics MITO. It is
recommended to ensure gyroscope and compass
status before diving to ensure best performance
from MITO. In addition, it is beneficial to regularly
recalibrate compass to prevent drift and magnetic
interference, especially when diving in different
spots.
Figure 3.4 –Firmware Update Page
The third page is for MITO firmware update.
Pushing the “Update” button will start an update
sequence. It also shows the curent firmware
version.
Camera Settings
Change various camera settings, such as the
followings:
1. Exposure Mode
Users are able to configure the shooting mode,
between auto-mode (P-mode) or manual mode (M-
mode).
In P-mode, users can adjust:
Exposure Compenstation Value (-2.0 to 2.0)
In M-mode, users can adjust:
Shutter speed (1/30 to 1/8000)
ISO (100 to 6400)
2. White Balance
In White Balance settings, users can select
between Auto, Manual, Cloudy, Sunny,
Incandescent light, and Fluorescent light.
Camera/Recording Mode
Switch between photo mode and recording mode.
In photo mode, users will be able to take 12M high
resolution photos, and in the recording mode users
can record high resolution videos. Difference in
shooting page is shown in Figure 3.5 and Figure
3.6 The red button (Figure 3.5) and white button
(Figure 3.6) are record and capture buttons
respectively.

Figure 3.5 Recording View
Figure 3.6 Photo Shooting View
FOV Settings
Allows users to choose between distorted, wider
FOV mode or undistorted, narrower FOV mode.
SD Card Settings
Contains information about SD card storage
(storage used, storage left, and SD card format)
Resolution Settings
Only available in Video Recording Mode:
changes the recorded video resolution (1080p, 2K,
and 4K)
3.5. Light Ring Indicator
On the top of MITO there is an LED indicator that
changes its color depending on the current state of
Navatics MITO. Currently, there are 3 listed colors
that indicates Navatics MITO's state, which are:
 Red indicates system failure, and action is
needed, for instance: sensor failure or stuck
thrusters
 Blue indicates calibration phase, where
users are expected to follow calibration
steps (more on sensor calibration in section
3.2)
 White indicates normal operating state
of Navatics MITO
3.6. Viewing Pictures and Videos
Once users took some videos and pictures, they
can view it in Navatics smartphone app.
Media Files
Users can click on “Photo and Video” buttons
from the app's landing page, or from the bottom
corner of the camera view screen to access
captured images and video.
Color Correction FIlter
When opening a picture, users can access
Navatics' color correction filter function.
3.7. Viewing Dive Logs
Dive logs are taken everytime a user used MITO to
dive. It will start recording the data when MITO
dives deep enough, and stop recording the log
when MITO is floating on the surface and the
thrusters are turned off, or when it is running out of
battery.
The dive log will record various data, including
duration of dive, maximum depth, depth and
temperature chart, maps, and display photos taken
in the dive. The sample dive log is shown in Figure
3.7 and Figure 3.8
Figure 3.7 –Dive Log Selection Page

Figure 3.8 –Dive Log Display Page
3. Account Registration and
Binding
In order to use Navatics MITO, users would be
required to sign up a Navatics account with an
email address. Once registered, users will be able
to bind Senseplay Race remote and Navatics MITO
device to an account.
After binded, the smartphone app will be
automatically connect the binded Senseplay Race
remote to the previous Navatics MITO the moment
it establishes connection with the remote controller.
4. Power Management and
Charging
5.1. Navatics MITO Battery
Battery specifications
Indicator
Navatics MITO battery is equipped with 4 blue
LEDs, each represents 25% of its total power.
Charger
(16.8V Charger).
When charging, the LED indicators will start
blinking until the battery is full, then all LEDs will
turn off.
5.2 Tether Roller Power Management
Battery specifications
Charger and Charging Indicator:
Navatics MITO tether roller is charged using
common USB charger via Type-C charging port. It
supports both normal charging and fast charging.
As an indicator, the power LED will start blinking
when it is charging. In fast charging, the power
LED in Navatics MITO tether roller will blink faster
than in normal charging.
Navatics MITO tether roller is also equipped with
solar charger, adding 1 hour usage in bright, sunny
day.
Navatics MITO tether roller can be used while
charging
5.3 Senseplay Race Controller
Battery specifications
Charger and Charging Indicator
Senseplay Race Controller is equipped with 4
battery indicator, each represents 25% of the
battery power.
Senseplay Race Controller can be charged using
common USB charger, it does not support fast
charging. When charging, the power indicator will
blink, and the blue LED among the buttons will light
up.
Senseplay Race Controller can be used while
charging.
5. Media Storage and Retrieval
When users captured images or record videos,
there are 2 medias created, lower resolution
cached storage in the phone, and full resolution
storage inside Navatics MITO. To access the
storage and retrieve the media files from Navatics
MITO, the steps are as following:
1) Turn off Navatics MITO to free the storage
usage from the camera before the following
steps.
2) Connect the tether connector on top of
Navatics MITO with connector-to-USB cable,
to a PC
3) Once connected, the PC should detect a
USB storage containing photos and videos
from Navatics MITO
6. Maintenance
There are a few precautions that needs to be taken
when using Navatics MITO. Please pay attention to

the following maintenance procedures:
1) After diving, especially in salt water, please
rinse Navatics MITO with fresh water. This
will help prevent salt cumulation and
corossion (especially in connectors)
2) Dry the connector, ensure that no water is
in the connector pins before storing.
3) Ensure that the connector is tightly
connected, and the O-Ring is present
around the head of male connector. This
will ensure the longevity of the connector
pins. Failure to ensure and maintain the O-
Ring condition may result in corrosion in
connector's pins
7. FCC-ID Warning
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved
by the party responsible for compliance could void
the user's authority to operate the equipment.
This equipment has been tested and found to
comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference in a residential
installation.
This equipment generates, uses and can radiate
radio frequency energy and, if not installed and
used in accordance with the instructions, may
cause harmful interference to radio
communications. However, there is no guarantee
that interference will not occur in a particular
installation. If this equipment does cause harmful
interference to radio or television reception, which
can be determined by turning the equipment off
and on, the user is encouraged to try to correct the
interference by one or more of the following
measures:
1) Reorient or relocate the receiving antenna.
2) Increase the separation between the equipment
and receiver.
3) Connect the equipment into an outlet on a circuit
different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV
technician for help.
8. Changelog
Version 1.0
Henry Liyanto
8th Feb 2018
Initial submission
Version 1.1
Henry Liyanto
22nd Nov 2018
Added New Features Manual
Added New Remote Manual
Version 1.2
Henry Liyanto
8Th Dec 2018
Added dive logs images
Added LED indicator explainations
Fixed calibration steps
Version 1.3
Henry Liyanto
11Th Dec 2018
Added charging sectoin
Added media retrieval section
Updated camera settings section
Added starting up roller and remote section
Added account registration and binding section
Version 1.4
Henry Liyanto
11Th Dec 2018
Added maintenance
Fixed typography
Added motor status indicator
Version 1.5
Chang Zhao
27Th Feb 2019
Added FCC-ID Warning
Split into two columns
Format tuning