Reely 1558909 User manual

Operating Instructions
Electrical quadrocopter
“Micro Racing Drone” RtF
Item No. 1558909

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Table of Contents
Page
1. Introduction..........................................................................................................................................................3
2. Explanation of Symbols .......................................................................................................................................3
3. Intended Use .......................................................................................................................................................4
4. Scope of Delivery.................................................................................................................................................4
5. Product Description .............................................................................................................................................5
6. Safety Notes ........................................................................................................................................................6
a) General..........................................................................................................................................................6
b) Before Commissioning .................................................................................................................................7
c) During Operation ...........................................................................................................................................7
7. Battery and Rechargeable Battery Notes ............................................................................................................8
8. Operating Elements of the Transmitter................................................................................................................9
9. Setting up the Transmitter..................................................................................................................................10
a) Inserting the Batteries..................................................................................................................................10
b) Switching on the Transmitter ....................................................................................................................... 11
10. Commissioning of the Quadrocopter .................................................................................................................12
a) Charging the Flight Battery..........................................................................................................................12
b) Checking the Drive ......................................................................................................................................13
c) Inserting the Flight Battery...........................................................................................................................13
d) Connecting the Flight Battery ......................................................................................................................14
e) Basic Information Relevant for Controlling of Quadrocopters .....................................................................15
f) Practical Flight Advice for the First Start......................................................................................................17
g) Trimming the Quadrocopter.........................................................................................................................18
11. Switching between Beginner and Sport Mode...................................................................................................20
12. Flip Function ......................................................................................................................................................20
13. Flying in the Headless Mode .............................................................................................................................21
14. Return Function .................................................................................................................................................22
15. Calibration of the Position Sensors....................................................................................................................23
16. Maintenance and Care ......................................................................................................................................24
17. Disposal.............................................................................................................................................................25
a) Product ........................................................................................................................................................25
b) Batteries/Rechargeable Batteries................................................................................................................25
18. Declaration of Conformity (DOC).......................................................................................................................25
19. Troubleshooting .................................................................................................................................................26
20. Technical Data ...................................................................................................................................................27
a) Transmitter...................................................................................................................................................27
b) Quadrocopter...............................................................................................................................................27
c) USB charger................................................................................................................................................27

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1. Introduction
Dear Customer,
thank you for purchasing this product.
This product complies with the statutory national and European requirements.
To maintain this status and to ensure safe operation, you as the user must observe these operating instructions!
These operating instructions are part of this product. They contain important notes on commissioning and
handling. Also consider this if you pass on the product to any third party. Therefore, retain these operating
instructions for reference!
All company names and product names are trademarks of their respective owners. All rights reserved.
If there are any technical questions, please contact:
International: www.conrad.com/contact
United Kingdom: www.conrad-electronic.co.uk/contact
2. Explanation of Symbols
The exclamation mark in a triangle indicates important notes in these operating instructions that must be
observed strictly.
The arrow symbol indicates that special advice and notes on operation are provided.

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3. Intended Use
This product is an electrically powered helicopter-like model with wireless radio control via the remote control system
included in the delivery. The quadrocopter is solely designed for private use in the eld of model construction and the
operating times associated with it.
The model is designed for operation indoor but may also be used outdoors at totally calm conditions. However, the
maximum transmitter range of approx. 15 m must be observed in this.
This system is not suitable for other types of use. Any use other than that described above can damage the product
and involves additional risks such as short circuit, re, etc.
The product must not get damp or wet.
The product is not suitable for children under 14 years of age.
Observe all safety information in these operating instructions. They contain important information on han-
dling of the product.
You are solely responsible for safe operation of the model!
4. Scope of Delivery
• Quadrocopter ready to y
• Radio remote control transmitter
• USB charging cable
• Spare propellers (4)
• Operating instructions
Current operating instructions
Download the current operating instructions via the link www.conrad.com/downloads or scan the
displayed QR code. Follow the instructions on the website.

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5. Product Description
The ready-to-y quadrocopter has 4 separate motors that drive one propeller each. Concurrent acceleration of all
propellers permits the quadrocopter to lift off of the ground and hover stably in the air at the corresponding propeller
speeds.
For stabilisation in ight, the quadrocopter has elaborate gyro electronics able to recognise uncontrolled movements
of the model and balance them out without delay. For the ight in a specic direction, the electronics in the model
recognise the control impulses of the transmitter and change the speeds of the individual motors accordingly. The
quadrocopter then tilts in the desired direction and the lift thus acts as drive as well. The quadrocopter ies in the
respective direction.
Two propellers on the model turn clockwise and two turn counter-clockwise. By targeted speed change of the two
propeller groups against each other (right-ward rotating propellers turn a little faster and left-ward rotating propellers
turn a little slower or vice versa), it is possible that the quadrocopter can turn (yaw) while maintaining ight height
and position.
In order to better recognise the model alignment in ight, a downwards-pointing blue LED is placed on the front and
a downwards-pointing red LED at the rear. The LEDs concurrently serve as status displays for the quadrocopter.
A central electronics PCB in the middle of the quadrocopter contains all components that are required for stabilising
and steering of the quadrocopter. The 2.4 GHz remote control system included in the delivery allows sensitive steer-
ing of the model.
Beginners have the option of operating the transmitter in Beginner mode. The control reactions of the model are then
clearly reduced (dual rate function). The quadrocopter reacts much more agilely in Sport mode. On demand, the
quadrocopter can even y somersaults (ips) in any direction.
For operation of the transmitter, 2 AA/mignon batteries (e.g. Conrad item no. 652502, order 2x) are required.

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6. Safety Notes
In case of damage caused by non-compliance with these operating instructions, the warranty/
guarantee will expire. We do not assume any liability for consequential damage!
We do not assume any liability for property damage or personal injury caused by improper use
or non-compliance with the safety instructions! In such cases the warranty/guarantee is voided.
Normal wear and tear during operation (e.g. worn-out motor-shaft bearings) are excluded from
the guarantee and warrantee, the same is the case for accidental damage (e.g. broken booms or
propellers).
Dear customer, these safety instructions are not only for the protection of the product but also for your own
safety and that of other people. Therefore, read this chapter very carefully before taking the product into
operation!
a) General
Caution, important note!
Operating the model may cause damage to property and/or individuals.
Therefore, make sure that you are sufciently insured when using the model, e.g. by taking out
private liability insurance. If you already have private liability insurance, verify whether or not
operation of the model is covered by your insurance before commissioning your model.
Observe: In some EU countries, you are required to have insurance for any ying models!
• The unauthorized conversion and/or modication of the product is inadmissible because of safety and
approval reasons.
• This product is not a toy and not suitable for children under 14 years of age.
• The product must not get damp or wet.
• If you do not have sufcient knowledge as to how to deal with remote-controlled models, please seek the
advice of an experienced model maker or a model making club.
• Do not leave packaging material unattended. It may become a dangerous toy for children.
• Should questions arise that are not answered by these operating instructions, contact us (for contact
information, see chapter 1) or another expert.
• The operation and handling of remote controlled quadrocopters must be learned! If you have never
steered such a model, start especially carefully and get used to the reactions of the model to the remote
control commands rst. Be patient!

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b) Before Commissioning
• Always rst switch on the transmitter and then connect the ight battery to the quadrocopter. This is the
only way for an attunement function to take place between transmitter and receiver, so that your model
will react reliably to the control commands of your transmitter.
• Check the functional safety of the model and remote control system. Watch out for any visible damage
such as defective plug connections or damaged cables. All moving parts on the model must run smoothly
but must not have any tolerance in the bearing.
• The ight battery required for operation must be charged before operation. Ensure that the batteries in
the transmitter have a sufcient remaining capacity (see transmitter LED). If the batteries are empty,
always replace the complete set, never individual cells only.
• Please use batteries only instead of rechargeable batteries for the transmitter.
c) During Operation
• Do not take any risks when operating the product! Your own safety and that of your environment depends
completely on your responsible use of the model.
• Improper operation can cause serious damage to people and property! Therefore make sure to keep a
sufciently safe distance from persons, animals or objects during operation. Never try to grab the ying
model with your hand!
• Fly your model only if your ability to respond is unrestricted. The inuence of tiredness, alcohol or medi-
cation can cause incorrect responses.
• Motors, motor regulator and ight battery can heat during operation. For this reason, take a break of 5 to
10 minutes before recharging the ight battery.
• Leave the remote control (transmitter) switched on while the model is in operation. After landing, always
disconnect the ight battery from the quadrocopter before switching off the remote control.
• Never switch off the remote control while the quadrocopter is still in operation.
• Never try to grab the ying quadrocopter with your hand or to land on your outstretched hand.
• Never expose your model or the remote control to direct sunlight or excessive heat for an extended
period of time.

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7. Battery and Rechargeable Battery Notes
Although use of batteries and rechargeable batteries in everyday life is a matter of course today,
there are many dangers and problems.
Ensure that you observe the following general information and safety information when handling
batteries and rechargeable batteries.
• Keep batteries/rechargeable batteries out of the reach of children.
• Do not leave any batteries/rechargeable batteries lying around openly. There is a risk of batteries being
swallowed by children or pets. If swallowed, consult a doctor immediately!
• Batteries/rechargeable batteries must never be short-circuited, disassembled or thrown into re. There
is a danger of explosion!
• Leaking or damaged batteries/rechargeable batteries can cause chemical burns to skin at contact; there-
fore, use suitable protective gloves.
• Do not recharge normal batteries. There is a risk of re and explosion! Only charge rechargeable bat-
teries (1.2 V) intended for this purpose. Use suitable battery chargers. Batteries (1.5 V) are intended for
one-time use only and must be disposed of properly when discharged.
• Always observe the correct polarity when inserting batteries or connecting the charger (observe plus/+
and minus/-). Incorrect polarity will damage not only the transmitter but also the plane model and the
batteries. There is a danger of re and explosion.
• Always replace the whole set of batteries. Do not mix full batteries with half-full ones. Always use batter-
ies/rechargeable batteries of the same type and manufacturer.
• Never mix batteries and rechargeable batteries! Therefore, only use batteries for the remote control
transmitter.
• If the device is not used for an extended period of time (e.g. storage), remove the inserted batteries from
the remote control to avoid damage from leaking batteries.
• After the ight, disconnect the ight battery from the quadrocopter. Do not leave the rechargeable ight
battery connected if the model is not in use (e.g. during transport or storage). Otherwise, the ight battery
may be fully discharged and is thus destroyed/unusable!
• Never charge the ight battery right after use. Always let the ight battery to cool down until it has
reached room or ambient temperature again.
• Only charge intact and undamaged ight batteries. If the outer isolation of the rechargeable battery is
damaged or the battery is deformed or bloated, it must not be charged. In this case, there is immediate
danger of re and explosion!
• Never damage the outer shell of the ight battery, do not cut the foil cover, do not puncture the ight
battery with pointed objects. There is a risk of re and explosion!
• Never recharge the rechargeable ight battery unattended.
• Disconnect the ight battery from the charging cable when it is charged completely.

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8. Operating Elements of the Transmitter
Figure 1
1 LED Display
2 Trim button for nod function
3 Pushbutton for ip function
4 Control lever for nod and roll functions
5 Trim button for roll function
6 On/off switch
7 Pushbutton for headless mode
8 Pushbutton for return function
9 Control lever for the pitch and yaw functions
10 Pushbutton for the beginner/sport mode

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9. Setting up the Transmitter
In the further course of these instructions, gures in the text always refer to the adjacent gure or the gures
within the section. References to other gures are indicated with the corresponding gure number.
a) Inserting the Batteries
The power supply of the transmitter requires 2 AA/mignon batteries (e.g. Conrad Item No. 652502, please order 2x).
Important!
Use batteries only (1.5 V/cell) instead of rechargeable batteries (1.2 V/cell) for transmitter power supply.
Proceed as follows to insert the batteries:
Loosen the attachment screw (1) of the battery compart-
ment lid (2) at the back of the transmitter with a suitable
screwdriver.
Push the latching lever (3) of the battery compartment lid
down slightly and fold open the battery compartment lid.
Insert two AA/mignon batteries into the battery compart-
ment according to the indications at the bottom (4) in
the correct polarity. The spiral-shaped spring contact (5)
always must be connected to the minus pole (-) of the bat-
tery.
Replace the battery compartment lid in the transmitter
housing and let the latching lever latch.
Then tighten the attachment screw again.
Figure 2

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b) Switching on the Transmitter
Move the control lever for the pitch and yaw functions (also
see gure 1, item 9) to the bottom position right at your
body.
Slide the on/off switch (also see gure 1, item 6) from the
left position "OFF" to the right position "ON".
The transmitter emits two short signal sounds and the LED
display (also see gure 1, item 1) starts to ash.
Slide the control lever for the pitch and yaw functions all
the way up and then all the way down again. The transmit-
ter emits a short signal sound and the LED display is now
lit permanently.
Then switch off the transmitter again with the on-off switch.
If the power supply is no longer sufcient for proper operation of the transmitter, the LED ashes (see gure 3, item 1)
in a cycle of one second and the remote control emits an alarm sound at regular intervals (approx. every 2 seconds).
In this case, terminate ight operation of the quadrocopter immediately and insert a new set of batteries in the trans-
mitter.
Figure 3

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10. Commissioning of the Quadrocopter
a) Charging the Flight Battery
Caution, important!
Even though this would easily be possible when operating the model later, never charge the ight battery
when installed for reasons of safety. Always remove the ight battery from the model for recharging! Place
the ight battery on a re-proof underground when charging and do not charge the battery unsupervised.
The ight battery is charged with the enclosed USB charging cable. For this, the charging cable is connected to a USB
socket of a computer/notebook or to a conventional USB plug-in charger.
Charging:
Connect the ight battery (1) with the connector protected
against polarity reversal of the USB charging cable (2).
Work with the required care and do not apply any unnec-
essary force.
Once the USB plug of the charging cable (3) is connected
to a USB socket of a computer/notebook or a USB plug-in
charger, charging commences automatically.
The red charge indicator LED in the USB plug (4) lights up
when charging is completed and the rechargeable battery
is fully charged.
Disconnect the rechargeable battery from the USB charg-
ing cable at once after charging and pull the USB plug of
the charging cable from the computer/notebook or from
the plug-in charger.
For photo-technical reasons, the USB charging
cable is illustrated in the wound-up state in g-
ure 4. Before rst use, the cable retainer should
be opened and the cable unwound.
Practical advice:
To check the charge control light in the USB plug, briey
disconnect the rechargeable battery from the charging ca-
ble while charging, before it is fully charged. In this case,
the red LED in the USB plug must light up. If you connect
the incompletely charged rechargeable battery again, the
LED must go out.
Attention!
Do not connect the USB cable to a USB hub without a separate mains adapter (e.g. a keyboard USB port,
etc.), because these will not provide sufcient current for charging.
The operating system does not recognize any new hardware after connection, because the USB port is only used
for power supply. Please observe that the USB ports of your computer/notebook are usually only active when the
computer/notebook is switched on.
Therefore, we recommend to only connect the charging cable to a computer/notebook that is switched on.
Figure 4

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b) Checking the Drive
Before commissioning your quadrocopter, you need to
check the drive. Only when all four propellers run smoothly
and perfectly round can the model y with the lowest en-
ergy consumption. For this reason, you should check the
drive propeller function briey before each ight.
For this, turn every single propeller carefully with your n-
ger and check concentricity and smooth operation.
Observe the rotating directions of the different propellers.
Two propellers turn counter-clockwise (A) and two propel-
lers turn clockwise (B) when viewed from above.
The arrow pointing up between the two upper
propellers in gure 5 indicates the forward ight
direction of the quadrocopter.
c) Inserting the Flight Battery
Put the quadrocopter onto a soft surface with the under-
side up.
Then push the charged ight battery (1) into the battery
chute from the side with the battery connection socket (3)
according to the adjacent gure. The battery cable with the
connection plug (3) must be on the side with the connec-
tion socket (2).
Important!
The rechargeable battery must be pushed into
the chute to the front all the way to the front-
most edge of the battery chute (4).
Figure 5
Figure 6

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d) Connecting the Flight Battery
Move the control lever for the pitch and yaw functions (also
see gure 1, item 9) to the bottom position and switch on
the transmitter with the on/off switch (also see gure 1,
item 6).
The transmitter emits two short signals and the transmitter
LED (also see gure 1, item 1) ashes.
Then connect the plug of the ight battery (1) that is pro-
tected against polarity reversal to the battery connection
socket of the quadrocopter (2).
Right after connecting the battery, the red (3) and blue (4)
LEDs of the quadrocopter will start to light up briey and
will then ash quickly.
Then put the quadrocopter back in the starting place on a
level ground.
Move the control lever for the pitch and yaw functions to
the front position and then back to the bottom position
again at once. The remote control transmitter then emits
a signal sound, and the LEDs at the quadrocopter and the
transmitter LED are permanently lit.
Now your quadrocopter is ready to start.
Figure 7

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e) Basic Information Relevant for Controlling of Quadrocopters
Before you y your model, you should rst familiarise yourself with the control possibilities open to you and thereby
be able to y safely.
The symmetrical setup of the model makes it very difcult to assign the alignment (front/rear). This is why there is
a blue LED between the two front propellers and a red LED between the two rear ones. Both LEDs are lit in ight.
The quadrocopter is controlled via the two control levers at the remote control transmitter. The following functions
are available:
Pitch Function
With the pitch function you can control the ight altitude of the quadrocopter (see gure 8). The left control lever (also
see gure 1, item 9) is used for control. To that effect, the control lever can be moved forward and backward. Unlike
the other control functions, the lever does not keep springing back to the centre position.
Depending on the control lever position, the speeds of the four propellers change. If the control lever has been pulled
all the way to the body, the motors are switched off.
If you push the control lever from the bottom position forward, the propellers start up and increase the speed according
to the position of the lever. Once the control lever is in the centre position, the propeller speeds should be high enough
for the quadrocopter to hover. If the control lever is pushed forward further, the quadrocopter will rise. If the control
lever is pulled back, the quadrocopter drops.
Figure 8

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Yaw Function
The two right-ward turning and the two left-ward turning propellers balance out the torques acting on the model. The
quadrocopter hovers stably.
If the control lever for the pitch and yaw function (also see gure 1, item 9) is moved to the left, the electronics in the
model will increase the speed of the propeller turning to the right (clockwise) viewed from above and at the same time
reduce the speed of the propellers turning to the left (counter-clockwise). This way, the entire lift force remains the
same, but only one torque acts on the model, which turns the quadrocopter around its vertical axis to the left when
viewed from above.
If the control lever is moved to the right, the speed changes of the propellers are precisely the other way around and
the model turns to the right.
Figure 9
Roll Function
The roll function allows you to move your quadrocopter sideways to the right and to the left (see gure 10). Use the
right control lever for control (also see gure 1, item 4).
If the lever is slightly moved to the left, the electronics in the quadrocopter change the propeller speeds so that the
model will turn to the left slightly and thus also y to the left.
If you move the transmitter to the right, the speed changes of the propellers are precisely inverted and the model will
y sideways to the right.
Figure 10

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Nod Function
The nod function allows you to move your quadrocopter forward and backward (see gure 11). This is also controlled
with the right control lever (also see gure 1, item 4).
If the lever is slightly pushed to the front, the electronics in the quadrocopter change the propeller speeds so that the
model will turn to the front slightly and thus also y forward.
If you move the transmitter to the rear, the speed changes of the propellers are precisely inverted and the model will
y to the rear.
Figure 11
f) Practical Flight Advice for the First Start
Even though the model can y in the narrowest of spaces, for the rst test ights we recommend using a free space
of about 3 x 3 m.
The support should be at (tiles, parquet ooring, or similar) to allow you to determine even before take-off if the model
tends to drift off in a particular direction.
If you perform the rst ight outdoors, you have to do so on a perfectly wind-still day.
Place yourself exactly behind your quadrocopter. As long as the model's red LED points towards you and you thus
see your model from behind, it will react to the control commands: right, left, forward, backward exactly as you see
it. Whereas, if the blue LED on the model points towards you, it reacts exactly the opposite way from your steering
commands at the transmitter from your view.
Important!
Do not pull the control lever for the pitch function down suddenly. This would cause the drive to switch off
and the quadrocopter to drop to the ground, which may cause damage. Pull the control lever back slowly
and thus reduce the ight height carefully.
If the propellers hit any objects and are blocked, slide the pitch lever into the bottom-most position at once so that the
affected drive motors are no longer supplied with power.
Attention, important!
Never try grabbing the ying quadrocopter with your hand. There is an increased danger of injury!

18
When the red and blue LEDs at the quadrocopter start to ash, the ight battery has reached its lower voltage limit.
In this case, end your ight without delay and charge the ight battery again to avoid harmful deep discharge of the
ight battery.
If you are using the quadrocopter outdoors, observe the ight distance. The farther the quadrocopter moves away
from you, the more difcult it is to recognise the ight position. The transmitter also has a limited range of about 15 m
(also depending on the ambient conditions).
Never switch off the remote control while the quadrocopter is still ying. In this case, the quadrocopter would drop to
the ground without power, which may damage it.
g) Trimming the Quadrocopter
First start the transmitter, then the model.
Push the pitch lever (also see gure 1, item 9) from the bottom position (motors off) carefully forward and observe the
response of your model. Shortly before the quadrocopter starts hovering, you can already determine in which direction
your model wants to move.
Roll trimming:
If the quadrocopter tries to drift or tip to the right, reduce the speed until the quadrocopter is standing safely on its
landing struts again. Push the left trim button for the roll function several times (also see gure 1, item 5).
Push the pitch lever carefully forward and check if the adjustment was sufcient. Repeat the procedure until the model
does not show any tendency to drift to the right.
If the quadrocopter drifts to the left, push the right trim button for the roll function.
Every time the button is pushed, the trim is adjusted by one step and the adjustment is conrmed by a
brief signal. If the button is pushed and held, the transmitter will continually emit a sequence of signals to
indicate graduals adjustment of the trim. When the nal position of the trim is reached, the transmitter no
longer emits any sounds.
Approx. 60 trim steps are available in either direction. The trim middle setting is indicated by a longer signal
sound.
Figure 12

19
Nod trimming:
If the quadrocopter tries to drift forward, reduce the speed until the quadrocopter is safely on its landing struts again.
Push the bottom trim button for the nod function several times (also see gure 1, item 2).
Push the pitch lever carefully forward and check if the adjustment was sufcient. Repeat the procedure until the model
does not show any tendency to drift forward.
If the quadrocopter drifts to the rear, push the upper trim button for the nod function.
Every time the button is pushed, the trim is adjusted by one step and the adjustment is conrmed by a
brief signal. If the button is pushed and held, the transmitter will continually emit a sequence of signals to
indicate graduals adjustment of the trim. When the nal position of the trim is reached, the transmitter no
longer emits any sounds.
Approx. 60 trim steps are available in either direction. The trim middle setting is indicated by a longer signal
sound.
Figure 13
The trim setting for the nod and roll function is not saved. After switching the transmitter off and on again,
the trim is reset to the middle position.
Attention!
If the trimming is misadjusted very far, the position sensors must be calibrated. The required procedure is
described in a dedicated chapter in the course of the instruction.

20
11. Switching between Beginner and Sport Mode
The remote control offers the option of operating the quadrocopter in the beginner or sport mode. In the beginner
mode, the quadrocopter reacts less strongly to the control commands of the transmitter and thus can be controlled
very precisely. Full control sensitivity is available in sport mode, and the quadrocopter can perform more extreme
ight manoeuvres.
After activation, the transmitter is automatically in beginner mode.
To switch to sport mode, push the pushbutton for begin-
ner/sport mode briey once (also see gure 1, item 10).
The transmitter switches to sport mode and emits two brief
signal sounds to indicate this. Maximum control sensitivity
is now available.
If you push the switching button again, the remote control
transmitter will emit a brief signal and return to beginner
mode.
12. Flip Function
The quadrocopter is able to y ips as well if desired. The rst ips should be own outdoors on a wind-still day. For
this, rst let the quadrocopter rise to a safety height of approx. 1,5 - 2 m and then let it hover.
To switch the transmitter to ip mode, briey push the but-
ton for the ip function (also see gure 1, item 3). To indi-
cate that the transmitter has switched to ip mode, it will
continually emit a quick sequence of brief signal sounds.
Now move the control lever for the nod and roll function
into the direction in which the quadrocopter is to perform a
ip quickly to the stop and then return the control lever to
the middle position without delay.
The quadrocopter will perform the ip in the desired direc-
tion and the transmitter will then end ip mode.
For another ip, you need to push the ip function pushbut-
ton again.
When the LEDs at the quadrocopter ash be-
cause the ight battery has dropped below its
lower voltage threshold, the ip function is de-
activated for reasons of safety.
Figure 14
Figure 15