3D Robotics PPM Encoder - Manual (Page 3)

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PPM Encoder User Manual V1 | ©3D Robotics, Inc. | 13 January 2014
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Specifications
• ATmega328p microcontroller, firmware upgrade enabled through AVRISP programmer
• 22 x 19 x 5.5 mm (without cables)
• 1.45 g
Failsafe configuration
Failsafes can protect your vehicle from loss of radio signal.
To learn more about configuring failsafes with your PPM
encoder, visit the APM Wiki page here .
Configuration
No configuration is necessary to use the PPM encoder out of
the box, just connect and power to translate PWM into PPM
over one wire. For information on reloading firmware onto
the encoder, visit the APM Wiki page here .
The ATmega328p firmware can be downloaded here for
planes and rovers and here for copters .
LED
When powered, the LED indicates the status of the radio signal.
Slow to fast blinking blue:
signal in good health, speed
corresponds to throttle channel
position
Very fast to constant blue:
throttle channel lost or all
channels lost