Semi-Documented Tx Features/Functions; Transmitter; Belly Connectors - WLtoys V303 Supplemental Information

Appendix 1: WLToys V303 Supplemental Information v18

Semi-documented TX Features/Functions

Let's start with the mystery slider. In the middle of the front of the TX there is a black vertical piece of plastic that moves
up and down. It has no mechanical/electrical function and is just sliding piece of plastic.

Transmitter

There is a 4 button pad to the right of the LCD.
1. Left Button – sequences through TX Modes 1-4 as displayed on the LCD control the function of sticks on the TX.
2. Right Button – Channel 7 values of 0-2
a. Snapshot Mode??? - Momentary press/release toggles from value 0-1-0 and shows a camera icon on
lower left of LCD
b. Video On ????- Holding button for a few seconds toggles to value 2 with blinking camera
c. Video Off ????- With Blinking camera in display and holding button again the value changes to 4 and
blinking camera disappears, and is accompanied by two chirps of the TX.
3. Top Button – Camera Pitch Up: Channel 8 value 0-1 Up arrow displays on LCD when pressed
4. Bottom Button – Camera Pitch Down: Channel 8 value 0 & 2 Down arrow displays on LCD when pressed

Belly Connectors

On the belly of the V303 are a set of connectors. While looking at the plugs on the belly of the Quad where the Micro
USB is on top the wiring is as follows:

USB Port

Power – Black (Ground)

Power – Red (+12v)

Com – Black (TX?)

Com – Red (Ground)

Com – White (RCV?)
6 June-10-2015