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# Specifications
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## FlockLab Services Specification
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| **FlockLab Service** | **Max. Rate** | **Time Sync Method** |
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|-----------------------|-------------------|----------------------|
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| GPIO Tracing | 10 MHz | GlossySync/GPS |
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| GPIO Actuation | 10 MHz | GlossySync/GPS |
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| Power Profiling | 28 kSamples/s | GlossySync/GPS |
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| Serial Tracing | - | NTP |
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| Serial Forwarding | - | - |
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### Sync Methods
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* GlossySync: Custom time synchronization based on the low-power communication protocol Glossy. Reference is a single GPS receiver.
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* GPS: Use of GPS receiver as synchronization source.
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* NTP: Network Time Protocol
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## Hardware Specification
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### Target Adapter Specs
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<li><a href="https://gitlab.ethz.ch/tec/public/flocklab/flocklab/blob/master/doc/Specification_FlockBoard_TargetAdaptors.pdf">Target adapter specifications.</a></li>
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### FlockBoard rev1.1
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* Designed and produced by: ETH Zurich
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* 5-56V unregulated power input (5.5-18V if USB power is used)
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* Power and reset switches
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* Generated voltages on-board: 3.3V, 4.2V, 5V
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* RTC with battery backup (keep datetime over power cycles)
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* 4 user-switchable LEDs
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* 3 USB connectors with user-switchable 5V supply
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* Voltage and current measurements on-board
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* Connector for Gumstix verdex with 4.2V power supply
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* 4 generic interface slots to attach arbitrary wireless sensor nodes using a simple adapter board
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### Gumstix verdex pro XL6P
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* Manufacturer: Gumstix Inc, more info [here](https://www.gumstix.com/store/product_info.php?products_id=210)
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* 600 MHz PXA270 processor
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* 32 MB flash
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* 128 MB RAM
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* Power consumption profile:
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* Idle: ~100mA
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* 100% CPU utilisation: ~300mA
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* MicroSD slot
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### Gumstix netpro-vx
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* 10/100 ethernet
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* 802.11b/g optional
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* Power consumption profile (measured ethernet only): ~100mA
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