Maybe you want to know the voltage of your onboard battery(s), how many RPMs the motor is turning or the temperature of your ESC. In this day and age R/C is not just one way communication anymore. Traditional radio systems transmit signals from the controller to the receiver, but Telemetry-capable systems send real-time data from your model back to your transmitter. The X-BUS Telemetry Link was developed based on communication protocol disclosed from Spektrum® for use with specific Spektrum® radios and compatible Castle Creations ESC’s. Telemetry data can be displayed on the transmitter screen, or for parameters where you only want to be notified when a defined threshold is exceeded, (battery voltage, ESC temperature, etc.) you can configure a vibration or sound alert from the radio.

Let’s start from the beginning.

What is Telemetry?

By definition, Telemetry is an automated communications process by which measurements (such as speed, temperature, or battery power) are made and other data collected at remote or inaccessible points and transmitted to receiving equipment for monitoring. A telemeter is a device used to remotely measure any quantity. It consists of a sensor, a transmission path, and a display, recording, or control device. Telemeters are the physical devices used in telemetry.

Why should I integrate Telemetry into my models?

Telemetry has the potential not only to improve the safety of our models by monitoring battery voltages, ESC temperature, and other critical parameters, but it also creates other opportunities to get even more fun out of flying because you’ve essentially reduced the risks of “unknown” inevitable crashes. Think of the benefits to be had from alarms that will sound to warn you when there's interference about or if your receiver battery is running unexpectedly low.

Note: data points available may vary depending on the ESC's capabilities.