taranis Q X7 - User Manual

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Programming the Taranis Q X7 Transmitter for Combat Robotics

The Taranis Q-X7 with OpenTX 2.2 firmware is a remarkably flexible transmitter that can adapt

to very sophisticated control requirements. Unfortunately, all that flexibility comes with a

complex user interface that confuses novices and gives experienced R/C jockeys a bewildering

range of choices. For example: you can’t simply turn on Elevon mixing – you need to build up a

channel mix from the elements available to the transmitter. This takes some thought and

planning.

While there is ample documentation available on the web to explain in detail the theory and

practice of OpenTX, two things led me to write this guide:

1. OpenTX was not developed for combat robots. The available tips and examples are

typically designed for servo-driven mechanical aircraft control surfaces that have

different considerations than do the Electronic Speed Controllers used in robot drive

trains.

2. The basic requirements of setting up a robot drive train and typical weapon control are

relatively simple compared to the capabilities of OpenTX. A robot builder shouldn’t be

forced learn the full scope of the firmware capability simply to get their robot operational.

This guide will skip over the bulk of the theory and provide examples of set-up, tuning, and

troubleshooting for standard combat robot layouts. Once you have your ‘bot operational you can

take time go as deep into control theory as you like.

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Summary

Explains how the mixer screen links transmitter inputs to receiver outputs.

Detailed steps for creating a skid-steer robot drive mix.

Adding Elevator response to the CH1 Aileron input.

Adding inverted Aileron response to the CH2 Elevator input.

General