Skip to content
Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
Go to file
Cannot retrieve contributors at this time


License Slack Wiki Build Status

Why are We Building CDP?

In 2017 a category-5 Atlantic hurricane, Maria, hit Puerto Rico and destroyed most of the island's infrastructure. Cellular and power were disabled for an extended period of time leaving medical and communications problems long after the hurricane passed. If access to a basic communications network was available, the community could have connected with emergency services, local government, or family to mitigate some of the widespread problems resulting from this disaster.

What is the CDP?

The ClusterDuck Protocol was created by Project OWL to be an easy to use mobile ad-hoc mesh network that can be accessed by people without the need to have specific hardware or pre-downloaded software (such as a mobile app). Since its creation, the vision for the ClusterDuck Protocol has grown beyond only servicing people in need after a hurricane towards additional use cases around earthquakes, wildfires, cellular congestion (large events), sensor networks, and more. Project OWL open-sourced this project so that the ClusterDuck Protocol could reach the communities that need it as fast as possible and continue to explore new directions.

How does it work?

The network is made up of multiple nodes called "Ducks". There are 3 core roles in a ClusterDuck network: DuckLink, MamaDuck, and PapaDuck. DuckLinks serve as edge nodes that only transmit data. These function as remote sensors or as additional access points to a Captive Portal. MamaDucks inherit the same functionality of the DuckLinks, but also receive messages. MamaDucks repeat messages from DuckLinks and other MamaDucks until the message reaches a PapaDuck. PapaDucks are the endpoint of the network where all of the data is collected and can be stored or pushed up to the cloud. (free tier cloud DMS platform in BETA! Reach out to us on Slack for more info)



Check out the Wiki to learn how to build your own ClusterDuck Protocol Network. And go to the ClusterDuck Protocol website for more information and to learn about projects built upon this codebase. You can reach out directly on our Slack Workspace for any questions and work with the community.

To use the ClusterDuck Protocol follow the Installation Manual.


From the project root, run the following snippet:

g++ -g -Wall -DCDP_NO_LOG test_bloomfilter.cpp src/bloomfilter.cpp -o test_bloomfilter && ./test_bloomfilter

This runs an acceptance test for the bloom filter.

How to Contribute

We host a bi-weekly CDP Town Hall on Mondays at 2pm ET. The town hall is the place to get updates on protocol, get your questions about CDP answered, and discuss on-going projects. All the current projects is documented in a public roadmap in Trello.

On the other Mondays (when there is no Town Hall), we host a live stream. Visit OWL's YouTube Channel for updates.

Please read for details on our Code of Conduct, the process for submitting ClusterDuck Protocol improvements, and how to join our town halls and livestreams.

This project is governed by its Technical Charter and led by its Technical Steering Committee.



This project is licensed under the Apache 2 License - see the LICENSE file for details.


See library.json (PlatformIO) or (Arduino).