ApexRyu's blog View Details
Posted by ApexRyu | May 06, 2016 @ 02:37 PM | 3,404 Views
1W High power LED module

Provide different colored LED modules.

Built-in LED controller/driver and LEDs on one PCB
Can see the flashing LED under the sunlight
Can easily distinguish the direction of drone using different colored LEDs
3-steps brightness control (10% - 50% - 100%)
6-steps different flashing mode control
Synchronous mode support (Master and Slave)
Constant current LED driving regardless of battery voltage drop
Simple wire connection
Reverse voltage protection

[Flashing Mode]
MODE1-S => MODE1-A => MODE2-S => MODE2-A => MODE3-S => MODE3-A => MODE4-S => MODE4-A => MODE5-S => MODE5-A => MODE6-S => MODE6-A => LED OFF , Repeat MODE when press the MODE button
('S' is Same flashing, 'A' is Alternative flashing)

Input Voltage: DC9V ~ 17V (LiPo 3S ~ 4S) via DC-IN pad (※ 3cell battery recommend)
LED: 1W High Power LED (Luminous flux; White: typ 90lm, Green: typ 65lm, Red: typ 55lm, Blue: typ 25lm, Amber: 55lm)
Power consumption: Operation max 4.2W(350mA @12V)
Operating Temperature: -10˚C ~ 50˚C
Dimensions: 63mm(L) x 8mm(W) x 8.2mm(H), Weight: 3.5g

Overview of DroneLight SIG3 (4 min 3 sec)

Posted by ApexRyu | Apr 16, 2016 @ 03:53 AM | 3,391 Views
3d modeling with mouting plate of high power led module
under development...
Posted by ApexRyu | Apr 01, 2016 @ 12:20 PM | 3,348 Views
Robocat 270 is my 3rd racing copter.
I assembled the robocat 270 with my high power LED module.

Carbon frame is OK.
But canopy is not good than I expected.

Mounted the 1W white high power LED with lens instead of FPV camera in the head and mounted 1W red high power led bar in the tail.

High power LED is very useful to distinguish the direction of copter in the day time.
Posted by ApexRyu | Mar 07, 2016 @ 05:38 AM | 5,264 Views
Hello everybody,
I'd like to introduce new sound locator is named DroneKeeper Mini.

Drone is not lost any more

Can save time finding a drone in the grass

Can use all kinds of drone

Sound is the surest way to find lost drones within close proximity area

  • DroneKeeper Mini is the stand-alone audible sound locator to find lost drones with internal battery.
  • Can work without any connection with built-in Motion sensor.
  • Can use all kinds of drone.
  • Support 2 in 1 function (Locator + Low voltage alarm)
  • High quality, performance and lightweight(6g)
  • Very easy to use, just mount on the drone
  • Can work regardless of main battery status
  • Possible to recognize the beep sound in a noisy downtown area within a 50~60meter radius.

  • Missing alarm will ring if there is no any movement of drone at Wireless mode
  • Missing alarm will ring if a receiver loses signal or power at Wired mode
  • Supports 2 kinds of user mode (Wireless mode, Wired mode)
  • Built-in Motion sensor for Wireless mode
  • Supports Low battery voltage alarm for external battery (main battery of drone) and can be changed from 3.2V to 3.6V by user
  • Supports Low battery voltage alarm for internal battery
  • Wide input voltage range from 5V to 17V (LiPo 2S to 4S)
  • Power switch off detection alarm at Wired mode only
  • Automatic internal battery charging when external power is connected
  • Can also charge the internal battery via the PC USB port using a provided micro USB module
  • Reverse voltage protection

...Continue Reading
Posted by ApexRyu | Feb 22, 2016 @ 11:10 AM | 3,252 Views
DroneKeeper Mini AD (2 min 34 sec)

Posted by ApexRyu | Dec 08, 2015 @ 11:14 AM | 4,066 Views
Please enjoy~

rcx h250 150704 (5 min 32 sec)

Posted by ApexRyu | Dec 07, 2015 @ 11:11 AM | 4,162 Views
DroneKeeper 1 is the first generation audible sound locator for loss prevention of drone.
It had been already made in October 2014 for only Korea users.
It is more useful for loss prevention of the 250 racing copter and very easy to use.
All you have to is to just connect the DroneKeepr 1 to empty channel of receiver and assign the corresponding channel by transmitter

1. Can work as stand-alone with internal battery regardless of main battery status.
2. If there is no PWM signal or power source loss, beep sound will ring automatically. Can also ring the beep sound by transmitter manually.
3. Can charge the internal battery automatically during flight.
4. Has power switch mistake prevention function.
5. Internal battery has a protect circuit module(PCM) basically.

1. Input Voltage: DC4.8V~6V
2. Charging time: approximately 40min~50min (full charging time after full discharge)
3. Operating time: approximately 2hour~6hour (depends on selected sound mode)
4. Standby current: under 10mA
5. Sound pressure level: min 85dB @10cm
6. Center Pulse Width of Receiver Input: 1,500us
7. Size: 49mm x 16mm x 15(9)mm
8. Weight: approximately 9g

Coming soon


ssb 70a user guide of smart search beeper (2 min 17 sec)