Variobot variAnt Bedienungsanleitung
Version 230825
Safety instructions
Before building and using the robot, it is important
to read the following precautions. Please follow
them!
●Read through these instructions before you
begin, and keep them on hand while building.
●This robot kit is not a toy! Keep it out of the
reach of children! t is only for ages 14 and up.
●Do not use where small animals are loose.
●For safety reasons, never leave the robot
unattended.
●Since variAnt doesn’t have a cover, be extra
careful to keep metal objects and tools from
causing a short circuit.
●Caution: Do not touch inside the power unit!
●Caution: Due to variAnt’s open structure, there
are sharp edges and corners.
●variAnt may only be used indoors. Do not use
this robot in traffic areas!
●Do not use variAnt on tables and other
surfaces from which it could fall.
●Only use the robot in dry, clean spaces. Dirt,
dust, foreign objects, and dampness destroy
the mechanics and electronics.
●Caution: Do not hook up devices to the robot,
especially not ones with mains voltage!
●f you hook up a device to the robot, we are
not liable for lost data.
●The robot is designed exclusively for learners,
teachers, and experimental purposes. Any and
all liability is excluded in the case that it is
used for any other purpose.
General Battery nformation
●Rechargeable batteries (RBs) should be kept
out of the reach of children!
●Do not charge conventional batteries. Doing so
is both a fire and explosion hazard.
Conventional batteries are not recommended
for this kit.
●Avoid short circuiting the RB; it can result in
the wires and/or the RB overheating.
●Do not disassemble, burn, or damage the RB.
●Charge the RB approximately every 3 months.
Otherwise, it can come to an over-discharged
or dead RB, which can make the battery
unusable.
●Defect RBs are to be disposed of in accordance
with the environmental rules and regulations
of your state and/or country. Most typically
they need to be entirely discharged, have non-
conductive tape placed over the terminals or
be placed separately into sealed plastic bags.
Do not put them in the trash or municipal
recycling bins!
Although the constructions and circuits introduced
in this instruction manual were designed and tested
with as much accuracy and detail as possible, errors
cannot be entirely excluded.
The intended use of this kit is described in this
instruction manual. f you deviate from the
instructions, the guarantee and liability will be
forfeited and the use of the robot is at your own
risk!
This product was produced in accordance with the
currently effective European Union directives and,
therefore, has the CE symbol.
The symbol of the garbage can/rubbish bin with an
X through it means that this product may not be put
into household garbage bins; it should be brought
to a recycling center and added to the electronic
scrap. Please take the time to find where you can
best recycle your electronic scrap!
ntroduction
Thank you for buying our variAnt robot kit. We did
our very best to make it as much like a real ant as
possible.
Thanks to its innovative and compact running
mechanism that’s powered by two high quality
micro-gear-motors, variAnt walks and acts almost
exactly like its biological counterpart.
This autonomous robot ant explores its
surroundings with up to 12 analog sensors.
These allow it to be aware of obstacles, movement,
floor markings or light with even the slightest
difference in brightness.
The control unit with its Nano-control-board in the
abdomen (rear part) and the breadboard,
integrated in the head, make multiple options for
connectivity and extensions possible.
Once the fun of putting variAnt together is over,
the pre-made and expandable code modules
ensure a quick and easy introduction to Arduino
programming. Your first experiments with A can
begin!
Content
●Section A (Construction) of this manual uses
numerous images to show you how to build
your robotic ant step-by-step.
●Section B (Startup Procedure) uses a
programming tutorial to explain how you can
use the custom-made variAnt Library to help
you write your first programs and then
gradually expand upon them.
●Section C (Appendix) currently has an
overview of the robot parts and circuit
diagrams. We will be adding more soon.
We wish you lots of fun building, programming, and
experimenting with variAnt!
You will also need:
●wire cutter & flat nose pliers
●utility knife & permanent marker
●PC or tablet with internet connection
●micro USB cable & USB-C cable
Table of Contents
A) Construction
1) Mounting the Spacers
2) Mounting the Motors
3) Prepping the Cables
4) Mounting the Boards
5) nstalling the Long Cables
6) Connecting the Short Cables
7) Prepping the Top Body Component
8) Connecting the Body Components
9) Prepping the Drive Shafts
10) Putting on the Gears
11) nstalling the Drive Shafts
12) Securing the Bushings and the Ball Joints
13) Assembling the Legs
14) Attaching the Legs
15) Defining the Step Sequence
16) Attaching the Sensors
17) Attaching the Mandibles
18) Attaching the Antennae
19) nstalling the Battery
20) Mounting the Electronics
B) Startup Procedure
1) Charging the Battery
2) Configuring the Arduino- DE
3) nstalling variAnt’s Library
4) Creating a Test Program
5) Testing the Walking Movement
6) mplementing Outputs
7) Checking the Sensors
8) Avoiding Obstacles
9) Notes on the Testing Environment
10) Additional Features of the variAnt Class
C) Appendix
1) Overview of the Components
2) Schematic Diagram of the variAnt Boards
We will continue to optimize and expand
sections B) and C) as well as the variAnt library.
We welcome your feedback so that we can
incorporate it into future updates if necessary.
List of Abbreviations
Connections on the variAnt board (front)
DL0 Digital- /O Left 0
DL1 Digital- /O Left 1
DL2 Digital- /O Left 2
DL3 Digital- /O Left 3
DR0 Digital- /O Right 0
DR1 Digital- /O Right 1
DR2 Digital- /O Right 2
DR3 Digital- /O Right 3
RSL Reed Switch Left
RSR Reed Switch Right
MLA Motor Left Ahead
MLB Motor Left Back
MRA Motor Right Ahead
MRB Motor Right Back
PWR Power
Buttons
LEDs LEDs on/off
PWR Power (battery on/off)
Connections on the variAnt board (rear)
AL0 Analog- nput Left 0
AL1 Analog- nput Left 1
AL2 Analog- nput Left 2
AL3 Analog- nput Left 3
AR0 Analog- nput Right 0
AR1 Analog- nput Right 1
AR2 Analog- nput Right 2
AR3 Analog- nput Right 3
GND Ground (0 Volt)
REF Analog Reference
RST Reset
3V3 3,3 Volt output
5V 5 Volt output (Arduino)
6V 6 Volt output (motors)
9V 9 Volt output (battery)
A) Construction
1 bottom body component
short screw (4 mm) medium screw (6 mm) long screw (8 mm)
short spacer brass ball (5 mm) long spacer
Overview of the most common combinations of small parts
Fragile! Handle with care!
When handling the acrylic parts, be careful
not to bend them too much until they
are connected to their counterpart.
Before you begin, remove the acrylic parts from
their individual transparent plastic film.
Begin with the bottom body component.
1) Mounting the Spacers
9 long spacers (plastic)
15 long screws (8 mm)
10 short spacers (brass)
10 short screws (4 mm)
The temporary feet will make mounting the
motors and gears easier.
Mount the 9 black hexagonal spacers with the 9
long screws (8 mm) and an Allen key at the
indicated positions on the top side of the acrylic
plate, which is smooth.
Then, on the same side of the plate, mount 4 of the
short brass spacers with 4 of the 4 mm screws.
Now attach 6 brass spacers with 4 mm screws onto
the bottom of the plate where variAnt’s legs will be
mounted.
Once you’ve done that, screw a long 8 mm screw
into each of the spacers. Use the Allen Key to
tighten them from the top and the bottom.
2) Mounting the Motors
Bend the connectors of each of the black twin
cables apart. Assure the indentations (1) are
facing in the same direction.
Push them through the small square openings in
the acrylic plate at the height of the indentations
(2).
After that, bend the motor cables by 180° so that
they lie flat against the side of the motor housing.
Now, ensuring you use little
pressure, slant the motors
and set them into the
corresponding openings.
The motors’ cables should run through
the small openings (4) next to the motors
and the black cable connectors should now
be stabilized.
2 black twin cables
2 gear motors with cables
1
Press the motors’ red cables right next to
the black caps of the motor housings (3).
This will prevent them from bumping into
the gears while using variAnt. 3
4
2
3) Prepping the Cables
4 cm
4 cm 7 cm9 cm
1 rainbow flat ribbon cable, 10 cm (10 pin)
2 rainbow flat ribbon cables, 20 cm (10 pin)
Carefully use a utility knife (held almost
horizontally) to split the 10 cm long flat
ribbon cable into 4 two-colored twin
cables.
Keep the leftover cable in case you
decide to do some additional wiring.
From one of the 20 cm long flat ribbon cables, sepa-
rate the outer four pole strands. Now split the three
long cables according to the specified dimensions.
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