In 2017, Hurricane Maria, a category-5 storm, severely impacted Puerto Rico, demolishing homes and communication infrastructure. To address this issue, the ClusterDuck Protocol (CDP) was developed in 2018. It utilizes battery-powered Internet-of-Things devices to reestablish essential communication during emergencies, allowing civilians to request assistance, share their locations, and receive vital information from local governments and responders.
The ClusterDuck Protocol runs on a variety of IoT hardware, including many ESP32 Arduinos.
Here is a list of hardware we use, though there may be many others that work. We recommend the Heltec LoRa ESP32 and the TTGO T-Beam ESP32.
For a simple network you will want to make at least two Ducks. For bigger networks you will need more.
To start developing, you will need PlatformIO on your computer.
Download or git clone the CDP library from GitHub.
Follow the installation instructions here
Please Note: With the Release of the ClusterDuck Protocol Version 4 we have different instructions. If you are looking for older instructions please go here
Connect your board to platform IO
Follow the these updates instructions for loading up a Duck to get one running.
Use the pre-built examples or develop custom Ducks of your own.
Deploy!
What (e.g., Windows 10, Windows 11) is your PC running?
in the list and select the desired value (EF, F1, F3, or F5) from the dropdown menu. Overclockers UK Forums
If you have ever delved into the tab of your Wi-Fi adapter properties in Windows, you may have encountered a cryptic setting labeled L2HForAdaptivity . Accompanied by options like EF, F1, F3, and F5 , this parameter often leaves users wondering if a simple click could unlock faster internet speeds or more stable gaming sessions.
L2HForAdaptivity with settings like EF, F1, F3, and F5 represents a deep-level optimization intended for fine-tuning how a Wi-Fi adapter handles environmental noise and signal degradation. While they are often discussed in tech forums to improve connection stability in challenging environments, their effect can be unpredictable. The best practice for users experiencing issues is to update drivers or move to a less congested 5 GHz frequency. l2hforadaptivity ef f1 f3 f5 link
According to discussions on SuperUser, the short answer is generally .
| If you are experiencing... | 👉 Recommended L2HForAdaptivity Value | 🤔 Why This Works | | :--- | :--- | :--- | | | F1, F3, or Auto | These moderate settings prioritize connection reliability and error correction, helping to maintain a steady link even in the presence of interference or signal noise. | | Unstable / Variable Speed | F5 or EF | These settings are optimized for throughput, pushing the data flow to its maximum capacity. They can help overcome bottlenecks and achieve higher sustained speeds. | | Good Speed, High Latency in Gaming | F3 or Auto | By optimizing the data pipeline, these values can help reduce the lag between your device and the router, leading to a more responsive experience for real-time applications. | | General Configuration / No Issues | Auto | Leave the decision-making to the driver. This is the safest and most reliable option for stable network environments. |
are likely profiles representing different modulation/rates. What (e
If you could provide more context or clarify what "l2hforadaptivity," "ef," "f1," "f3," and "f5" refer to, I could offer a more precise and relevant response.
The threshold dictates the specific signal energy level (measured in dBm) at which the adapter considers the channel "blocked."
Before modifying the setting, it is essential to understand the overarching wireless standard it serves. Wireless adaptivity is a regulatory and technical protocol mandated by standards such as ETSI (European Telecommunications Standards Institute) for devices operating on shared, unlicensed radio frequency bands (like 2.4 GHz and 5 GHz). Accompanied by options like EF, F1, F3, and
— maybe notes about using l2h (LaTeX to HTML conversion) for adaptive content, with functions or features f1 , f3 , f5 , and a “link” command or parameter. Example: “l2h for adaptivity: ef, f1, f3, f5, link.”
When you navigate to Windows Device Manager, right-click your network card, and open the Advanced tab, L2HForAdaptivity presents four distinct options:
The L2HForAdaptivity string specifies the precise signal energy threshold (measured in hexadecimal values representing decibels relative to a milliwatt, or dBm) at which the adapter transitions from a low-energy scanning state to a high-energy state. It sets the boundary for what your wireless card considers "destructive noise" versus a "clear channel." Decoding the Values: EF, F1, F3, and F5
While L2HForAdaptivity remains one of the more opaque advanced driver settings, understanding its purpose empowers you to troubleshoot connectivity issues more effectively. The values EF , F1 , F3 , and F5 serve as performance-tuning parameters, likely influencing how your adapter manages data flow, though their exact function remains undocumented. By taking a methodical approach—starting with driver updates and cautiously experimenting with these settings—you can often resolve frustrating issues and achieve a more reliable, high-speed wireless connection.