Experiments with Trimble's Lassen IQ: Unterschied zwischen den Versionen
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Here's a photo of the OpenTracker SMT. It's really small: | Here's a photo of the OpenTracker SMT. It's really small: | ||
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[[Image:OpenTrackerSMT.jpg|400px]] | [[Image:OpenTrackerSMT.jpg|400px]] | ||
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+ | The tracker's inner values: | ||
+ | * Voltage: DC 6.5 to 28V unregulated or 5V DC regulated | ||
+ | * Current: 8 mA idle, 20 mA transmitting Max 200 mA @ 5 V available for GPS | ||
+ | * Modes: 1200 bps AFSK (send and receive); 300 bps AFSK, PSK31 (send only) | ||
+ | * Radio Connector: pin header | ||
+ | * Serial Connector: pin header | ||
+ | * Dimensions: 31mm x 18mm x 5mm | ||
+ | * GPS interface: NMEA in/out | ||
+ | |||
+ | Pinout: | ||
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+ | Pin Name Funktion | ||
+ | 1 5VIN Geregelter 5-Volt-Eingang | ||
+ | 2 RxD RS-232 Data in der (vom GPS oder Computer) | ||
+ | 3 1Wire Dallas 1-Draht-Bus für externe Sensoren | ||
+ | 4 AOUT Audio-Ausgang an Radio | ||
+ | 5 ADC5 Analog-Eingang | ||
+ | 6 T1CH1 Timer-Kanal | ||
+ | 7 ADC6 Analog-Eingang | ||
+ | 8 RST Reset (active low) | ||
+ | 9 ADC7 Analog-Eingang | ||
+ | 10 IRQ- Transmit-now, Profil wählen, oder Zähler | ||
+ | 11 ADC8 Analog-Eingang | ||
+ | 12 ADC9 Analog-Eingang | ||
+ | 13 AIN Audio-Eingang von Radio | ||
+ | 14 ADC4 Analog-Eingang | ||
+ | 15 ADC3 Analog-Eingang | ||
+ | 16 TXD RS-232 Data aus | ||
+ | 17 rot rot LED-Ausgang | ||
+ | 18 grün grün LED-Ausgang | ||
+ | 19 ADC2 Analog-Eingang | ||
+ | 20 ADC1 Analog-Eingang | ||
+ | 21 PTT Push-to-talk-Signal an Radio | ||
+ | 22 REGOUT Regulator-Ausgang - 5 Volt | ||
+ | 23 GND Ground | ||
+ | 24 REGIN Regulator-Eingang - 6,5 bis 28 Volt |
Version vom 2. August 2009, 01:34 Uhr
The Lassen IQ is a GPS receiver that is extremely power efficient. Here are some links:
Here's a little theory on satellite navigation:
And here it is:
1 Experiments
1.1 APRS-Tracker
The challenge is to build a high performance tracker as power efficient and as space-efficient as it can be.
Ingredients:
- Trimble LassenIQ
- Trimble ANT
- OpenTracker SMT
Here's a photo of the OpenTracker SMT. It's really small:
The tracker's inner values:
- Voltage: DC 6.5 to 28V unregulated or 5V DC regulated
- Current: 8 mA idle, 20 mA transmitting Max 200 mA @ 5 V available for GPS
- Modes: 1200 bps AFSK (send and receive); 300 bps AFSK, PSK31 (send only)
- Radio Connector: pin header
- Serial Connector: pin header
- Dimensions: 31mm x 18mm x 5mm
- GPS interface: NMEA in/out
Pinout:
Pin Name Funktion 1 5VIN Geregelter 5-Volt-Eingang 2 RxD RS-232 Data in der (vom GPS oder Computer) 3 1Wire Dallas 1-Draht-Bus für externe Sensoren 4 AOUT Audio-Ausgang an Radio 5 ADC5 Analog-Eingang 6 T1CH1 Timer-Kanal 7 ADC6 Analog-Eingang 8 RST Reset (active low) 9 ADC7 Analog-Eingang 10 IRQ- Transmit-now, Profil wählen, oder Zähler 11 ADC8 Analog-Eingang 12 ADC9 Analog-Eingang 13 AIN Audio-Eingang von Radio 14 ADC4 Analog-Eingang 15 ADC3 Analog-Eingang 16 TXD RS-232 Data aus 17 rot rot LED-Ausgang 18 grün grün LED-Ausgang 19 ADC2 Analog-Eingang 20 ADC1 Analog-Eingang 21 PTT Push-to-talk-Signal an Radio 22 REGOUT Regulator-Ausgang - 5 Volt 23 GND Ground 24 REGIN Regulator-Eingang - 6,5 bis 28 Volt