RadioLink Byme-DB User manual

Byme-DB
Instruction Manual
V1.0

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Contents
Disclaimer .................................................................................................................................................................... 2
Safety Precautions ...................................................................................................................................................... 2
Byme-DB Introduction ................................................................................................................................................3
Specifications .............................................................................................................................................................. 4
Installation ................................................................................................................................................................... 4
Flight Modes Setup ..................................................................................................................................................... 5
Motor Safety Lock ....................................................................................................................................................... 5
Transmitter Setup ....................................................................................................................................................... 7
Power-on and Gyro Self-test ...................................................................................................................................... 7
Attitude Calibration .................................................................................................................................................... 7
Serv o Phase ................................................................................................................................................................. 9
Serv o Phase Test .................................................................................................................................................. 9
Serv o Phase Adjustment ..................................................................................................................................... 9
Three Flight Modes ................................................................................................................................................... 10
Stabilize Mode ....................................................................................................................................................10
Gyro Mo de .......................................................................................................................................................... 11
Manual Mode ......................................................................................................................................................11
Gyro Sensitiv ity ......................................................................................................................................................... 11
Technical Suppor t ..................................................................................................................................................... 12

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Disclaimer
Thank you for purchasing RadioLink Byme-DB flight controller.
To fully enjoy the benefits of this product and e n sure safety, please read the manual carefully and set up the device as
instructed steps.
Inappropriate operation may causes property lose or accidental threats to life. O n ce the RadioLink p roduct is operated, it
means the operator u nderstands this limitation of li ability and accepts to take responsibility of the operation.
Make sure to follow the local laws and agree to follow the p ri nciples that made by RadioLink.
Fully understand that RadioLink cannot analyze the p roduct damage or accident reason and cannot offer after-sales servi ce i f
no flight record is provided. To the maximum extent permitted by law, R adioLink won't take any responsibility about the lose
caused by indirect/consequent/accidental/special/penal damages including the lose by purchase, operation and failure of
operation in any instances. Even RadioLink is in formed about the possible lose in advance.
Laws in certain countries may prohibit the exemption from th e terms of th e guarantee. Therefore consumer rights in different
countries may vary.
In compliance with laws and regulations, R ad ioLink reserves the right to interpret the above terms and conditions. RadioLi nk
reserves th e right to update, change or terminate these terms without p rior notice.
Atten tion: Thi s product is not a toy and is NOT suitable for children under the age of 14. A d ults should keep the product out of
the reach of children and exercise caution whe n operating this product in the presence of ch i ldren.
Safety Precautions
1. Please do not fly in the rain! Rain or moisture may cause flig h t instability or even loss of control. Neve r fly i f there is lightning.
It is recommended to fly in conditions with good weather (No rain, fog, lightnin g, wi n d ).
2. When flying, you must strictly abide by local laws and regulations and fly safely! Do not fly i n no-fly areas such as airports,
military bases, etc.
3. Please fly i n an open field away from crowds and buildings.
4. Do not pe rform any operation under the condition of d ri nking, fatigue or other p oor mental state. Please operate in strict
accordance wi th th e product manual.
5. Please be cautious when flying near electromagnetic i nterference sources, including but not limited to: high-voltage power
lines, h i gh-voltage transmission stations, mobile p hone base stations and TV broadcast signal towers. When flying in th e
above-mentioned places, the wireless transmission performance of the remote control may be affected by in terference. If
there is too much interference, the signal transmission of the remote control and the receiver may be interrupted, resulting in
a crash.

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Byme-DB Introduction
Byme-DB is applicable to all model airplanes wi th mixed e levator and ai leron controls including delta wing, paper plane, J10,
traditional SU27 , the SU27 with ru d der servo, and F22, etc.

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Specifications
Dimension：29*25.1*9.1mm
Weight (With wires): 4. 5 g
Channel Quantity: 7 channels
Integrated S e nsor: Th ree-axis gyroscope and three-axis acceleration sensor
Signal Supported: SBUS/PPM
Input Voltage: 5 -6 V
Operating Current: 2 5±2mA
Flight Modes: Stabilize Mode, Gyro Mode and Manual Mode
Flight Modes Switch Ch an nel: Ch ann el 5 (CH5)
Motor Lock Channel: C h annel 7 (CH7)
Socket Specifications: CH1, CH2 and CH4 are with 3P SH1.00 sockets; The receiver connect socket is 3 P PH1.25 socket; CH 3 is
with a 3P 2.54mm Dupont Head
Transmitters Compatible: All th e transmitters with S BUS/PPM signal output
Models Compatible: All model airplanes with mixed e levator and aileron controls including de lta wing, paper plane, J10,
traditional SU27 , the SU27 with ru d der servo, and F22, etc.
Installation
Make sure the arrow on Byme-DB p oints to the aircraft head. Use 3M glue to flatly attach Byme-DB to the fuselage. It is
recommended to install it near the center of gravity of the aircraft. Byme-DB comes with a receiver connect cable which is u se d
to connect the receiver to Byme-DB. When connecting the servo cable and ESC cable to Byme-DB, p lease check whether the
servo cable and ES C cable match the sockets/head of Byme-DB. If they do not match, the user needs to modify the ser vo cable
and ESC cable, and then connect the cables to Byme-DB.

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Flight Modes Setup
Flight modes can be set channel 5 (CH5) (a 3 way switch) i n the transmitter with 3 modes: Stabilize Mode , Gyro Mode and
Manual Mode. Take RadioLink T8FB/T8S transmitters as examples:
Note: Wh en using othe r brand transmitters, please re fer to the following picture to switch the flight modes. The value range of
channel 5 (CH5) corresponding to th e flight mode i s as shown below:
Motor Safety Lock
The motor can be locked/unlocked by Channel 7 (CH7) in the transmitter.
When the motor is locked, the motor will not rotate even if the throttle stick is in the highest position. Please put the throttle to
the lowest position, and toggle the switch of channel 7 (CH7 ) to unlock the motor. The motor emits two long beeps means the
unlocking is successful. When the motor is locked, the gyro of Byme-DB i s automatically turned off; When the motor i s
unlocked, the gyro of Byme-DB is automatically turne d on.

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Note:
If the motor only beeps once wh e n toggle the switch of channel 7 (CH7) to the un lock position, the unlocking fails. Please
follow the methods below to troubleshoot it.
1. Check whether the throttle is at the lowest position. If not, please push the throttle to the lowest position until the motor
emits a second long beep, which means th e unlocking is successful.
2. Since the PWM value width of each transmitter may be d i fferent, when u si n g other transmitters except RadioLink T8FB/T8S,
if the unlocking still fails even thou gh the throttle is at the lowest position , you need to in crease the throttle travel in the
transmitter. You can toggle th e switch of ch anne l 7 (CH7) to the motor unlocking position, and then adjust the throttle
travel from 100 to 101, 10 2, 103... until you hear the second long bee p from the motor, wh i ch means the un locking is
successful. During the p rocess of adjusting the throttle travel, be sure to stabilize the fuselage to avoid i njuri es caused by
blade rotation.
Take RadioLink T8FB/T8S transmitters as examples:
Note: When using other brand transmitters, please refer to the following picture to locked/unlock th e motor. The value range
of channel 7 (CH7) is as shown below:

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Transmitter Setup
1. Do not set any mixing in the transmitter when Byme-DB is mounted on the aircraft. Because there is already the mixing in
Byme-DB. The mix control will automatically take effects according to the flight mode of the aircraft. If th e mixing function
is set in the transmitter, there will be conflicts of mixing and affect the flight .
2. If RadioLink transmitter is used, set transmitter phase:
Channel 3 ( CH3) - Throttle: Reversed
Other channels: Normal
Note: When u si ng a non-RadioLink transmitter, there is no need to set the transmitter phase.
Power-on and Gyro Self-test
Each time the flight controller i s powered on, th e gyro of the flight controller will p e rform self-test. The gyro self-test can only
be complete when the aircraft is stationary. It is recommended to install the battery first, th e n power up the aircraft and keep
the aircraft in a stationary state. After the aircraft is powered on, the green indicator light on ch anne l 3 wi ll be always on. When
the gyro self-test passes, the control surfaces of the aircraft will shake sligh tly, and the green indicator lights of other channels
such as channe l 1 or ch ann e l 2 will also turn solid.
Note:
1. Du e to d ifferences in aircraft, transmitters and other equipment, it is p ossible that the green indicators of other chan nels
(such as channe l 1 and channel 2) wi ll not be on after the gyro self-test of Byme-DB is complete. Please judge whether the
self-test is complete by checking whether the control surfaces of the aircraft shake slightly.
2. Push the throttle stick of the transmitter to the lowest p osition first, and then power on the aircraft. If the throttle stick is
pushed to the hi ghest position and then power on th e aircraft, the ESC will e nter the calibration mode.
Attitude Calibration
Flight controller Byme-DB needs to calibrate the attitudes/level to ensure the balance status.
The aircraft can be placed flat on the ground when performing attitude calibration. It is advised to lift the model head with a
certain angle(20 degree is advised) for beginner to en sure smooth flight and attitude calibration will be recorded by flight
controller once the it is complete with success.
Push the left stick (left and down) and the right stick (right and down) as below and hold more than 3 seconds. The green LED
flashes once mean the calibration completed.

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Note: When using a non-RadioLink transmitter, if the attitude calibration is unsuccessful when pushing the left stick (left and
down) and the right stick (right and down), please change th e direction of the channel in the transmitter. Make sure whe n
pushing the joystick as above, th e value range of channel 1 to chann el 4 is:
CH1 2000 µ s, CH2 20 00 µs, CH3 1000 µs, CH4 10 00 µ s
Take an open source transmitter as example. Th e ser vo display of chann el 1 to channel 4 wh en calibrating the attitude
successfully is as shown below:
CH1 2000 µ s (opentx +100), CH 2 2000 µs (opentx +100)
CH3 1000 µ s (opentx -100), CH4 1000 µs (opentx -100)

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Servo Phase
Servo Phase Test
Please complete the attitude calibration first. After the attitude calibration is completed, you can test the servo phase.
Otherwise, the control su rface may swing abnormally.
Switch to Manual mode. Check whether the movement of the joysticks matches that of th e corresponding control surface.
Take Mode 2 for transmitter as an example.
Servo Phase Adjustment
When th e movement direction of the ailerons is inconsistent with the j oystick movement, please adjust the servo phase by
pressing the buttons on the front of the Byme-DB.
Servo phase ad justment methods:
Servo phase test result
Reason
Solution
LED
Move the aileron stick to the left, the movement
direction of the ailerons and tailerons is reversed
Aileron mix control
reversed
Short press the button
once
Green LED of C H 1
on/off
Move the e le vator stick d own, the movement
direction of the ailerons and tailerons is reversed
Elevator mix control
reversed
Short press the button
twice
Green LED of C H 2
on/off
Move the rudder joystick, th e movement direction
of rudder se r vo is reversed
Channel 4 reversed
Short press the button
four times
Green LED of C H 4
on/off

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Note:
1. Green LED of CH3 is always on .
2. Neither the always-on nor off green L ED means reversed phase. Only toggle the j oysticks can ch e ck if the corresponding
servo ph ases are reversed. If the servo phase of the flight controller is reversed, adjust the ser vo phase by pressing the
buttons on the flight controller. No need to adjust it in the transmitter.
Three Flight Modes
Flight modes can be set channel 5 (CH5) in the transmitter with 3 modes: Stabilize Mode, Gyro Mode and Manual Mode. H e re is
the introduction of the three flight modes. Take Mode 2 for transmitter as examples.
Stabilize Mode
Stabilize Mode with flight controller balancing, is suitable for beginners to practice level flight.
The model attitude (inclination angles) i s controlled by j oysticks. When the joystick i s back to central point, the aircraft will
level. The max inclination angle is 7 0° for rolling while that for pi tching is 45°.

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Gyro Mode
The joystick control the rotation (angle speed) of the aircraft. Th e integrated three-axis gyro assists to i n crease the stability.
(Gyro mode is th e advanced flight mode. The aircraft won't level even the j oystick i s back to central point.)
Manual Mode
No assistance from flight controller algorithm or gyro, all flight movements are realized manually, whi ch requires the most
advanced skills. In Manu al mode, i t is normal th at there is n o movement of the control surface without any operation on the
transmitter because th ere is n o gyroscope i nvolved in stabilize mode.
Gyro Sensitivity
There is certain stability margin for the PID control of Byme-DB. For aircraft or models of d ifferent sizes, if the g yro correction is
insufficient or the gyro correction is too strong, pilots can try adj usting the ru dder angle to adjust the gyro se n sitivity.

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Technical Support Here
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