posted Thursday, 19 February 2015, 19:35 (+0800), by Martin

Introduction
This page describes the radio control transmitter that I re-packaged, to make it smaller and more portable, and more suitable for kite aerial photography (KAP).
Kite aerial photography (KAP) is a form of aerial photography, where a camera is suspended from a kite line to allow aerial photos to be taken, with the camera either being triggered by an intervalometer, or controlled and triggered via radio control. My KAP camera rig uses a 6-channel radio control transmitter and receiver to control the camera, allowing me to rotate and tilt the camera while it is airborne. Depending on which camera I use, I can also remotely trigger the camera shutter.
Read my Introduction to Kite Aerial Photography guest post on DIYP for more information on the how and why of KAP, and have a look through some of my KAP photos.
Why Re-package the Transmitter?
As I have taken my KAP gear on a couple of domestic and international business trips, I wanted to make it more portable. The transmitter is quite bulky, and the protruding joysticks don't make it easy to pack. Some of the re-packaged KAP transmitters posted on the KAP forums provided inspiration and ideas, including:
- 2.4 GHz transmitter goes to the chop shop
- Dave's Chopped Spektrum
- Customized Turborix
- custom Arduino KAP transmitter (more details in this forum thread)
- forum thread with various completed results
To achieve this, I decided to:
- use 8 x AAA batteries instead of 8 x AA batteries
- custom-build a smaller case
- use a removable antenna
- remove un-used circuitry and controls