Argent Data Systems OpenTracker USB User Manual download pdf (Page 12)

Telemetry/Control Header

• The RTrak-HAB employs a full telemetry and controls package as part of the tracker

payload. All ADC raw values are reported in the payload of the APRS packet.

• The ADC (Analog to Digital Converter) channels can accept any analog voltage

between 0-5VDC. These channels have on-board 3.3K pull-up resistors and 0.1uF

decoupling capacitors.

• The GPO (General Purpose Output) channels can control numerous devices during

flight. GPO 0-2 switches ground. GPO 3 switches +5VDC

Important! As of writing this document (4/15/2011) the GPO’s are not yet implemented

in firmware. This will be added soon and this document will be updated to reflect that

change.

Telemetry/Control Header Pinout

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Argent Data Systems OpenTracker USB User Manual Page 12