FetLON: The Flexible, Compact and Independent LON® Stack

The freedom to run LON® anywhere – with the FetLON Stack.

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Innovating Communication Technology for All Manufacturers

Discover how FetLON revolutionizes LON® protocol implementation – versatile, scalable, and free from vendor lock-in.

Our Journey in Communication Innovation

FetLON was created to deliver a cost-effective, high-performance, and vendor-independent solution for implementing the LON® protocol across a broad range of 32-bit microcontrollers. By avoiding reliance on proprietary hardware, FetLON offers a future-proof and flexible alternative to legacy systems.

At the core of our solution is our patented differential Manchester code conversion technology, which enables reliable communication over a simple bus interface – without requiring dedicated LON® chips. This opens up new possibilities for developers and manufacturers seeking long-term availability, broad platform compatibility, and freedom from single-source constraints.

The FetLON stack has been in successful use for several years and has proven itself in demanding real-world applications. It is trusted by a growing number of satisfied customers who rely on its stability, efficiency, and adaptability in diverse embedded environments.

Whether you’re designing with STMicroelectronics, NXP, or soon Renesas microcontrollers – FetLON provides a robust foundation for ISO/IEC 14908-1 compliant communication that scales with your needs.

Why Choose Us

Unique Value Propositions of FetLON

Patented Technology

Our differential Manchester code conversion enhances communication reliability across various platforms.

Cost-Effective Components

Designed for efficiency, our components make implementation affordable without compromising quality.

Flexible Integration

Easily integrate the LON® protocol across diverse microcontrollers from numerous manufacturers.

Migration from Neuron® 5000 to STM32 with FetLON Stack

Project period: Summer 2022 – Spring 2023

By migrating from Neuron® 5000 to STM32G0B1 and the modular FetLON stack, a leading control technology manufacturer reacted proactively to increasing supply shortages in 2022 – gaining not only independence, but also modern architecture with full LonWorks compatibility.

Challenge

  • Long-term independence from the Neuron® 5000
  • Proven LonTalk communication should be maintained
  • Previous attempts with alternatives (e.g. CAN) not successful
  • Compatibility with existing network management and field
  • devices essential

Solutions

  • Decision for STM32G0B1 + FetLON stack
  • Patented support for Dierential Manchester Coding
  • Modular stack enables fast customization
  • Existing analyzers and network management remain usable

Results

  • Full functionality retained (incl. network variables, tools,
  • service processes)
  • Step-by-step migration of the various modules instead of a
  • complete changeover
  • More function in the chip: fewer external components thanks
  • to modern CPU – saving space and costs.
  • Long-term availability guaranteed

Lessons Learned

Migration from Neuron® 5000 to STM32 is technically feasible
FreeRTOS facilitates the mapping of complex logic
Existing systems can be modernized without replacing them
The effort is manageable if the architecture is modular

Start Your Communication Journey Today with Us!

FetLON is dedicated to providing innovative solutions for the LON® protocol across diverse microcontrollers to optimize communication technology.

Get Started

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