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RC Helicopter Downlink Telemetry Module
With this clever on-board telemetry module, you can collect
vital flight information about RC aircraft. The module sends
information via a wireless ZigBee link to a ground station
consisting of a laptop computer and a ZigBee receiver. The
system is implemented using an MC1392 SARD board with a few
modifications. A voltage follower built with an LM2904 op-amp
and a simple resistor divider are wired to channel 2 of the
ADC on the SARD board’s on-board MC9S08GT60 microcontroller.
The telemetry system is expandable enough to support the monitoring
of the engine’s RPM as well as altitude and airspeed.
Leonid Shvarzberg
leonid@sbcglobal.net
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