This all-in-one Microbrick is a fully featured
receiver board with 2 on-board servos along with gyro stabilization targeted
specifically for small planes with experienced small planes builder.
Feature
- Dimensions (X,Y): 26.3mm x 34.4mm
- Height (Bottom of PCB to servo shaft): 14mm
- Height (Including servo motor hub to servo shaft): 18mm
- Weight: 6.5 grams (with no power wire)
- DSMP protocol (fully compatible with DSMX / DSM2)
- Integrated 5A brushed motor driver
- Optional external brushless ESC connection
- Gyro stabilization on/off via gear channel
- Delta, fixed wing and V-tail mixing
- Legacy mode for single control stick operates both elevator and rudder channel
- Dual aileron for fixed wing
- Remote gain control on AUX3 (for transmitter with 8-channel or up)
- Servo swap feature (rudder and elevator servo position exchangeable for flexible installation)
- Intended for 1S LiPo application. 2S LiPo (8.4V) operational with dual on-board servo. (Note that the external servo over JST 1.0mm connection may not be able to work at 8.4V)
- Exceptional holding torque with approximately 0.10kg*10mm with 4.2V and 0.13kg * 10mm with 8.2V.
Microbrick diagram
All Microbrick uses the same board with the same
firmware except different connectors and wiring are used.
Binding
Press
and hold button prior to power on for binding. The small receiver board
flashing at the back indicates the Microbrick is ready for binding.
Setting indication
When power is
provided the LEDs will flash multiple times in sequence. Below is the sequence
of flashing that indicates various setting.
1) Gyro calibration indication (red =
fail, green = OK)
2) Wing mode
3) Dual aileron (if set)
4) Servo swap (if set)
Stabilization
Stabilization can be set on gear channel by toggling between +100% to -100% to
enable or disable stabilization. Aileron, elevator and rudder gain can be set
accordingly via the on-board pots. The optional AUX3 master gain control is
made available automatically if AUX3 is available. It is recommended to set
AUX3 gain at mid-point initially before tuning the 3 pots to ensure AUX3 allows
tuning of the model aircraft dynamically by rotating the knob from mid-point.
Rotate model to observe and predict if appropriate gain is adjusted correctly
as well as corrective action direction is set. The red/green LED indicator indicates
stabilization mode. Red and green on means no stabilization. Green on means
stabilization is activated.
Stabilizer corrective direction and wing mode
Delta, fixed wing and V-tail can be
set while dual aileron option is available such that the aileron and AUX1 are both
used for aileron control. Below diagram shows servo function with the wing type
chosen. If Spektrum transmitter is used, the model should be reset in the
transmitter menu before following the instruction below.
Accessing the corrective direction and wing
mode menu via push of the button for setting changes.
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Hold button for just over 1 seconds
causes “A” LED to flash. Release now and the other 2 LEDs will be flashing
for the next 5 seconds indicating user may change aileron corrective
direction during this time by pressing the button. The set result will be
reflected on LED with solid blue or off. When the other 2 LEDs stop flashing,
stabilizer will resume to its normal operation. |
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Hold button for just over 3 seconds
causes “E” LED to flash. The remaining step is identical to the above for
setting the elevator corrective direction.
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Hold button for just over 5 seconds
causes “R” LED to flash. The remaining step is identical to the above for
setting the rudder corrective direction.
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Hold button for just over 7 seconds
causes all LEDs off. Button should be released at this point to exit
operation or continue to hold for next setting. |
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Hold button for just over 10
seconds causes all 3 LEDs to flash. Release now and any one of the LED will
be in solid blue. User has 5 seconds to change wing mode. Starting from left
to right the LEDs are for “Fixed Wing”, “V-Tail”, “Delta” as well as the “Legacy”
mode with the last 2 LEDs on. Legacy mode means rudder and aileron channel
swapped. Press briefly to change any one of the mode within 5 seconds. For
example, the left LED is currently on. If user briefly press button, middle
LED will be on indicating wing mode is now set for “V=Tail” (Note that legacy mode allows
single control stick for controlling the plane’s flight that’s favoured by
many experienced modelers found in many legacy transmitter decades ago.) |
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Hold button for just over 18
seconds causes the two furthest apart LEDs (“A” and “R”) to
flash. Release now and the centre LED will be
flashing while the 2 LEDs beside the centre one will indicate dual aileron as
on and vesa versa. User has 5 seconds to change aileron mode. Press briefly to allow dual aileron or single aileron within 5 seconds. User should set
dual aileron for wing type in Spektrum transmitter for dual aileron setting. |
Servo swap
Swapping
both servos are sometimes required due to mechanical setup of the plane. Servo
swap menu can be accessed by pressing the bind button before power on and
continue to press it for 10 seconds. Ignore bind indication and wait for “A”
LED to flash. Release button
now with aileron & rudder LED flashing means the Microbrick is in servo
swap menu. User only has 3 seconds to enable or disable servo swap by briefly
pressing button. Aileron LED on means servo swap is enabled and vice versa.
After 3 seconds the Microbrick exit servo swap menu while the receiver board
LED will still be flashing indicating ready for bind. Ignore this bind
indication at and turn off power at this point to complete the procedure.
Installation
Be careful not to exert force or glue on the small board at the back of the stabilizer as this may damages the receiver board causing the unit malfunction.
RCgroups discussion (Click below link for user manual page with
link to RCGroups)
https://lemon-rx.com/manual
Note:
1) This is not a Spektrum DSMX or DSM2 product, nor is it a copy of a Spektrum
DSM2 or DSMX product. The Spektrum, DSMX and DSM2 brand is a trademark of
Horizon Hobby, Inc.
2) This is not an underground black market fake Spektrum product. Lemon Rx
quality is guaranteed.
3) Lemon Rx products are tested to be compatible with Spektrum's DSMX and or
DSM2 product (Spektrum, DSMX and DSM2 are the registered trademark of Horizon
Hobby, Inc.).
- Stock: In Stock
- Model: LM0070M1