Raspberry Pi

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Raspberry Pi by Mind Map: Raspberry Pi

1. Telemetry via XBee

1.1. XBee S1 Pro + XBee Explorer USB

1.2. range?

1.3. stability?

1.4. streaming: Pi to Ground

1.4.1. 3 streams to 1 stream ?

1.4.2. 3 streams to 3 streams ?

1.4.3. 1 stream to 1 stream ?

1.5. Option1: read from file

1.6. Option2: read from script

2. Specifications Pi

2.1. Operating system

2.1.1. Raspbian (in console mode)

2.1.2. wheezy(?)

2.1.3. ARCH Linux ARM

2.2. PI 3

2.2.1. 1.2GHz Quadcore

2.2.1.1. Multithreading?

2.2.2. 64Bit

2.2.3. 1GB RAM @900MHz

2.3. Pi Zero

2.3.1. 1.0 GHz Singlecore

2.3.1.1. No! Multihreading

2.3.2. 512MB RAM

2.3.3. Seperate power supply for USB devices

2.4. Hardware

2.4.1. Display

2.4.2. Cooling?

2.5. Clock

2.5.1. accuracy is ~40ppm

2.5.2. “STC: a free running counter that increments at the rate of 1MHz” -> should be enough for 3kHz

3. Power supply

3.1. Alex

4. Measurement setup in field

5. Storage format

5.1. Option1: NetCDF

5.2. Option2: Binary

6. Post processing

7. Synchronization

7.1. seperate data collection?

7.2. timed start

7.3. data collection from IMU

7.3.1. @10Hz

7.3.2. send to ground station @10Hz

7.4. data collection from CEBO

7.4.1. data @3000Hz

7.4.2. loss-less collection!

7.4.2.1. number data in CEBO?

7.4.3. collection speed?

7.4.3.1. 3kHz?

7.4.3.2. more stability with lesser frequency?