Red Pawz CMR280 User manual

Red Pawz CMR280 User Manual
The Red Pawz CMR280 comes configured for FPV Racing.
Configuration as follows:
1. A fully built and tested CMR280 frame made from CNC cut 3K carbon fiber.
2. Modular and removable 32-BIT. MultiWii flight control pre-programmed.
3. 4 x Red Pawz 2204-2300kv motor
4. 8 x 6030 nylon fiberglass propeller ,4 x CW ,4 x CCW (all black)
5. 4 x Red Pawz 12A ESCs with SimonK firmware
6. High integrated PCBA
7. Modular and removable 5.8G video transmitter and bulit-in Mini OSD
8. 5.8G tail antenna
9. 8 x shock absorber rubber balls
10. 600TVL FPV camera/ Lowest Lux 0.01 Lux

Optional spare parts:
1. 3D FPV Goggles
2. Lipo: 2200mah 3S 25C Lipo pack / 1800mah 4S 25C Lipo pack
3. RC TX/RX: The RTF frame does not come with a RC transmitter or RX. Any 2.4 Transmitter/RX
or even LRS will work.
4. HD Camera：Mobius action-camera 1080P HD

The Table Of Content
Disclaim.........................................................................................................................................5
The Description of CMR280..........................................................................................................6
CNC(ed) 3K Carbon Fiber Frame..............................................................................................6
Highly integrated independent PCBA......................................................................................7
R/C Transmitter Control Modes ............................................................................................8
Flight Modes...........................................................................................................................9
Multiwii Configurator Connection.......................................................................................10
12A SimonK ESCs...................................................................................................................11
Camera.....................................................................................................................................14
FPV Camera.............................................................................................................................14
HD Camera (GoPro/Mobius) ...................................................................................................15
Vtx system ...............................................................................................................................16
OSD (On Screen Display)........................................................................................................17
The Welcome Screen ..............................................................................................................17
Flight Data Statistics...............................................................................................................19
Connectors,Switches and Interfaces.....................................................................................20
Anti-Vibrations Rubber Ball....................................................................................................25
Specification:...........................................................................................................................26
Channel Mapping and Arm FC...................................................................................................27
Firmware Upgrades ....................................................................................................................30
Flying with competitors..............................................................................................................31
Looking after your CMR280........................................................................................................32
Support........................................................................................................................................33
Note..............................................................................................................................................33

Disclaim
Thank you for choosing Red Pawz products.Many hours of development ,and testing time went into
the CMR280 ,we truly hope that this is reflected in your experience with the product. Additional
information can be found on our website at http://www.redpawz.com .Our products could be updated
at any time,so please check frequently for software updates. If your have any questions, please
leave us a message, our technical staff will reply in short time.
Before using our product, please read the product manual and strictly follow the instruction.This is
race quad. It does not come with GPS, and it does require a fair amount of skill to pilot it .Quad props
can do some serious damage when coming in contact with human.Unless you are ready to fly ,when
you are working on a quad with the battery connected,it is highly recommended to remove all props.
Any product damage cause by not doing so, Red Pawz will not be liable. If you find the product is
damaged when you received it, please contact reseller first, they will replace or repair the product.
Any user’s modifications and disassembly, Red Pawz will not be liable .
The use of this product maybe prohibited in your country, please verify that the RF output power and
frequencies used by this transmitter comply with local regulations . Do not fly recklessly ,do not fly
near to airports , freeways, people and anywhere where an equipment failure or pilot mistake can
cause injury or damage to people or property.

The Description of CMR280
Red Pawz CMR280, hereinafter referred to: "CMR280". The default configuration is designed for
FPV racing . This is just a basic characteristics of the design, The greatest charm is offer a completely
open source platform to the players, professionals and those who do not have enough equipment
but wisdom enough.
CNC(ed) 3K Carbon Fiber Frame
The modular design is easy and open to work on.If parts are damaged in a crash,the files are
available for download to make new ones yourself,or you can buy parts from your local dealer.
Support Gopro and Mobuis mounting. In addition to our 280 frame,250 and 300 size will be available
in the near future .
All screw hardware is M3 for easy assembly.

Highly integrated independent PCBA
Highly integrated PCBA with modular ESCs and flight controller for convenient maintenance. This
PCBA will be the heart of our future frames also.
Base PCBA
Flight Control
12A High Speed ESC
OSD & VTx

Flight Controller
The Flight control is optimized for Multiwii. It can be flashing to the latest MWC firmware, but you
must be able to understand the program .If you want to take advantage of optimizing for the best
flight experience.
R/C Transmitter Control Modes
Mode 1 - Europe
Mode 2 - USA
Mode 3
Mode 4

Flight Modes
There modes are as follows:
ARCO:
Acro mode (Rate mode) uses the RC sticks to control the angular velocity of the copter. Release the
sticks and the vehicle will maintain its current attitude and will not return to level. Acro mode is useful
for aerobatics such as flips or rolls, or FPV when smooth and fast control is desired.
ANGLE:
Stable mode if the PID values are correctly adjusted and the gyro and the accelerometers have been
calibrated and trimmed.
According to MultiWii developers ANGLE MODE is virtually obsolete, HORIZON MODE is preferable
in most cases.
Uses: gyro and accelerometers.
HORIZON :
A mixture between ACRO and ANGLE modes. Combining the stabilising effect with calm rc sticks
and acrobatics with busy rc sticks.
ANGLE MODE mode when PITCH/ROLL sticks are centered. ACRO MODE mode when full PITCH
or ROLL sticks are applied, allowing flips.
Uses: gyro and accelerometers.

Multiwii Configurator Connection
Hook up a computer via a standard Micro USB cable , to the connector on the side of CMR280 .
Then open the MultiWii Configurator .

12A SimonK ESCs
1. What is “Firmware”?
Generally speaking, firmware is code program built into the micro controller unit (MCU) of
electronic products. After the micro controller unit is powered up, the firmware will control MCU’s
signals. Since the factory will download the firmware to the MCU’s Flash memory, many people call
this process “Flashing”. In the RC model industry, products such as ESCs, receivers, digital servos,
battery chargers and more need firmware in order to operate.
2. What is SimonK Firmware?
SimonK firmware is a firmware specifically for ESCs (electronic speed controllers) developed by
Simon Kirby. This firmware has been found to offer faster response compared to normal ESC
firmware, easy handling and good compatibility, all of which greatly enhances multirotor
performance.SimonK firmware is continuously being optimized and upgraded. In the beginning, only
ESCs which used an ATMEL micro controller could be upgraded, though now, the firmware can also
be used on SiLabs and Intel 8051 MCUs. In addition, the firmware code is open, meaning you can
modify the code yourself to better suit your ESC and/or application.
3. Why do I need to flash SimonK firmware?
A) Exploration. This is the common interest of RC model enthusiasts. If you want to know about the
principles and hardware structure of the ESC, you can start by flashing SimonK firmware,which will
allow you to learn the MCU download process.
B) Pursuit of changes. When you are tired of one ESC “personality”, you can update it by
flashing SimonK firmware.
C) When troubles come out. When your ESC cannot power up your new motors, but your
companions’ can. You need to implement SimonK firmware to your ESC. SimonK firmware has
excellent compatibility. It can start almost every motor, except for damaged ones.
4. How to flash SimonK firmware?
Maybe you once downloaded firmware to the micro controller in your college laboratory. But that
does not mean you can flash SimonK firmware into ESC’s MCU.

First, please ensure that your ESC support SimonK firmware. Second, pls meet following
requirements.
A). Hex or Bin file. The firmware for the ESCs is available in a .hex or .bin file. One file
contains the complete firmware for one ESC.
B). Interface Software (eg. AVR Studio) Depending on your platform you will need dedicated interface
software installed on your computer to flash your ESC with the new firmware.
C). MCU programmer (eg. JTAG or USB ASP)
D). PIN header or micro clips to connect programmer to MCU Then you can flash the ESC with the
video and other information on internet.
Note: You can flash your ESC multiple times but only the last flashed firmware is active on the micro
controller. If the wrong firmware is flashed, you may end up with a damaged ESC when it's powered
by the battery supply. It's important to safely test your ESC after the firmware upgrade.
5. How to get Pre-flashed ESCs with SimonK firmware?
Flashing your own ESCs is not so easy as you download music to your iPhones. It takes time, a
flash tool and some research. For modelers who do not have any knowledge about MCU, the flashing
process is difficult. Or some model flyers just need their models fly well and do not care about flashes.
If you are in one of them, you can choose Red Pawz already flashed ESC.
6. Install your ESCs
We believe it is easy for you to install ESCs to multirotor platform. We still kindly remind you to make
sure the correct and solid connection of each connector to silicon wire, battery wire to power
distribution board, power distribution board to ESC, ESC to motor.
7. SimonK firmware ESC start-up tones
All ESCs make the motors sing, so does SimonK firmware ESC. When connected to power,you need
firstly unlock the flight controller. Then ESCs make 3 beeps (di da di), to tell you self detection
finished. If flight controller also makes control instructions, a long beep (di) will tell you ESCs have
received throttle signal from flight controller and ready to start. Then pull up the throttle stick, motor
starts to run. OK! Let's go!

8. How to do throttle calibration
Normally, you do not need to do throttle calibration for new multicopter ESCs. However, in some
special cases, you still need to do it. Remove your props, and disconnect the battery. Push your
radio throttle to maximum, connect the flight battery, wait for the 3 beeps(di da di), wait for 1s, you
will hear a short beep(di). Then immediately lower the throttle to minimum. You will then hear another
unique 2 beeps (di di), indicating you are setting the low value. If you hear a long beep, it means the
low throttle set. Disconnect the battery, throttle calibration is done. If you hear a short beep, it means
low throttle set failed. You need to do the calibration again. If still no success, pls contact us.
9. SimonK ESC breakdown
SimonK firmware ESC has big starting up torque, if your flight controller algorithm is not
reasonable or motor quality is not high, too much throttle increment will cause burst current too high
to burn ESC. We all do not want it happen. To avoid it, we give you the following
suggestions:
1), Choose low heating ESCs for your Multicopter.
2), Choose ESCs continuous current higher than maximum current of the motor.
3), Ensure good heat radiation of the ESC.
If your ESC damaged during flight, please contact us, we will solve the problem for you as soon as
possible.

Camera
FPV Camera
The default FPV camera is 620TVL low lux CCD Camera.
Sensor Chip:1/3 inch HD Color CMOS
Video Standards: PAL
Effective Pixels: PAL=720(H)*576(V)
Definition: 600TV Lines(HD)
Lowest Lux: 0.01 Lux
Video Output: 1.0Vp-p/75Ω
Power consumption: 40MA ±10%
Operating Voltage: DC5-15V ±10%
Size: 21*21*28mm±0.5mm
Operating Temperature: 0°C~45°C RH95% Max
Weight: 15g

HD Camera (GoPro/Mobius)
HD Camera is optional accessory . There is special design on CMR280 allow you mounting HD
action camera ,such as GoPro and Mobius .

Vtx system
Powerful video transmission system using 5.8G 32 Channel transmitter,build-in
OSD .Equipped with 5.8G tail antenna.

OSD (On Screen Display)
The Welcome Screen
ARMED

DISARMED
Flight Status

Flight Data Statistics

Connectors,Switches and Interfaces
1) USB Connector ,apply for configure the flight controller and upgrade the firmware.
Note that to use the USB connector ,a battery must be connected also when you mapping
the receiver , program motor parameter and etc .
2) OSD button, used to restart OSD