Lynxmotion UAV SimonK ESC User Guide SimonK

Lynxmotion UAV
SimonK ESC User Guide
SimonK Firmware ESCs (Electronic Speed Controller)
Revision 1.0
Lynxmotion UAV
SimonK ESC User Guide
1. What is “Firmware”?
Generally speaking, firmware is code program built into the microcontroller unit (MCU) of
electronic products. After the microcontroller 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
SimonK firmware is continuously being optimized and upgraded. In the beginning, only ESCs
which used an ATMEL microcontroller 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.
D) New reasons you can find…
4. How to flash SimonK firmware?
Maybe you once downloaded firmware to the microcontroller in your college laboratory. But that
does not mean you can flash SimonK firmware into ESC’s MCU.
Lynxmotion UAV
SimonK ESC User Guide
First, please ensure that your ESC support SimonK firmware. Second, pls meet following
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
C). MCU programmer (eg. JTAG or USB ASP)
D). PIN­header or micro­clips 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
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 Lynxmotion already flashed ESC.
Lynxmotion UAV
SimonK ESC User Guide
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. Please refer to the pic
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
self­detection 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.
Lynxmotion UAV
SimonK ESC User Guide
9. SimonK ESC breakdown
SimonK firmware ESC has big starting­up 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
1), Choose low­heating ESCs for your Multicopter.
2), Choose ESCs continuous current higher than maximum current
of the motor.
3), Ensure good heat­radiation of the ESC.
If your ESC damaged during flight, please contact Lynxmotion, we
will solve the problem for you as soon as possible.
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