This DIY kit adds 6 extra channels to transmitters generate PPM modulation (applicable to FLYSKY GT2B, GT3, GT3B, GT3C RC transmitter).
You need to find where the transmitter’s encoder output goes to the RF modulator, cut the wire or pcb trace, then insert this circuit into the PPM signal stream.
The extra 6 channels could be controlled by two-axis gimbal, variable knobs, or switches. Switched channels are implemented using resistors to provide set analog voltage inputs.
The microcontroller runs at 8MHz, providing find proportional control and high resolution.
Operating Voltage: 3V-5.5V
FLYSKY Gun-type remote control: Flysky GT2B, GT3, GT3B, GT3C.
Option A: Keep the first channel and the second channel, add 6 channels from channel 3 to channel 8, in this case you could bind FLYSKY 8CH receiver to use all 8 channels.
Option B: Keep the first channel, second channel and the third channel, add 5 channels from channel 4 to channel 8, in this case you could bind FLYSKY 8CH receiver to use all 8 channels.
1 x 6 channel PPM expander PCB
3 x 10K potentiometer
1 x 3 position long toggle switch
2x 3 position short toggle switch
6 x 10K resistor
8 x 1mm JST Plug with cable