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The Serval Project Wiki
This wiki provides resources for developers and users of The Serval Project. If you have any suggestions for content to be included in the Wiki, please contact wikiadmin [at] servalproject.org.
USER REGISTRATION ANNOUNCEMENTS
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Quick Links
How to report a bug – we appreciate you taking the trouble, please read this to make your effort count
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Current activity – projects, grants and initiatives – units of work in progress and completed
Technology roadmap – what we have built, are building, would like to build, and will not build
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Development – hardware, software, UI, testing, documentation… how the Serval Project builds things
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<ifauth @seniordev,@admin> * Senior Developers – not for general access, only for senior developers</ifauth>
<ifauth @student,@seniordev,@admin> * Student Area – only accessible to students and senior developers</ifauth>
Serval Mesh
Serval Chat
Serval Maps
Serval Maps is an Android app that uses Serval Mesh to provide collaborative, infrastructure-independent, geographical mapping.
The Serval Mesh Extender is a hardware device that helps other devices to join and participate in a Serval Mesh network.
Second-Generation Mesh Extenders:
powered by external USB, 12v/24v automotive and/or solar (with MTTP tracking charge controller)
Integrated LiFEPO4/LiIon/Sealed-Lead-Acid battery charger
Custom-designed injection-moulded housing
Designed to meet IP66 environmental resistance
Integrated “Mesh of Things”/“Internet of Things” I/O port
microSD card for bulk storage (reduced power consumption versus USB)
Wi-Fi access point (for devices to connect) and ad-hoc Wi-Fi (between Mesh Extenders)
RFD900/RFD868 UHF packet radio (up to 4km range line-of-sight, ~200m indoors)
Interface to
Codan/Barrett HF Radios for very-long-range communications links (support for other radios is also possible)
provides a standard Wi-Fi Access Point for nearby devices (such as smart phones) that do not support Ad Hoc Wi-Fi mode
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acts as a
Rhizome node, storing and forwarding files and
MeshMS messages
Fully interoperable with first generation Mesh Extenders
First-Generation Mesh Extenders:
powered by any external USB power source (5V 500mA)
Mesh Extenders mesh together over short distances using Ad Hoc Wi-Fi, and over longer distances using packet radio on the
ISM 915 MHz band. Our ad-hoc packet radio system uses the RFD900 long-range UHF radio with custom CSMA firmware.
provides a standard Wi-Fi Access Point for nearby devices (such as smart phones) that do not support Ad Hoc Wi-Fi mode
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acts as a
Rhizome node, storing and forwarding files and
MeshMS messages
provides a platform for future Serval Project initiatives, such as the commoditisation of many classes of medical monitoring devices.
Trial Deployments & Exercises
The following is a list of past and planned trial deployments and related activities.