Core runtime helpers
Shared EFL constants, status handling, configuration reporting, bounded strings, deterministic memory and buffer helpers, plus math/conversion utilities.
Endeavor Firmware Library
EFL: practical firmware modules for teams shipping embedded products.
Reusable C firmware modules, ThreadX-centered integrations, embedded services, and bench tools from Endeavor product work. Built for teams that need useful infrastructure without starting from zero.
Why we are packaging this.
Embedded teams keep rebuilding the same practical pieces: byte streams, logging, file transfer, boot/update handoff, diagnostics, network services, and test fixture glue. EFL is where we make those pieces easier to find, evaluate, reuse, and support.
The goal is not a giant framework. It is a practical library of small, understandable modules that can move into real products without forcing a team to restart its architecture.
What we are packaging.
The first EFL packages are reusable C modules, ThreadX-centered integrations, network services, production diagnostics, hardware-facing adapters, and bench tools that have come out of product work.
Some pieces are simple drop-in helpers. Others are larger product bridges such as pimaX, smbX, consoleX, and printX, where the value is in the boundary, documentation, test harnesses, and integration path around the firmware.
Browse modules
First release areas.
Service and diagnostic interfaces
Category-based logging, measurement evidence, watchdog boundaries, LED indicators, and support hooks for manufacturing and field service.
Boot, file, and transfer services
Portable boundaries for bootloader handoff, image confirmation, file access, OTA policy, timestamps, JSON payloads, and bounded upload/download workflows.
Communications and bus modules
Portable protocol and adapter work for CAN, NMEA 2000, J1939, ISO TP, UART, RS-485, Modbus RTU, HTTP, I2C, and SPI-backed device integration.
Cellular and network services
AT-command cellular foundations, CMUX/PPP boundaries, Quectel-oriented modem work, and BG95 USB/PPP runtime pieces.
ThreadX product bridges
ThreadX-centered bridges and product services for USB media transfer, embedded file sharing, remote GUIX display/control, and low-memory print/report workflows.
AI and development tools
Developer-facing tools for command consoles, bench automation, relay control, MCP integrations, GUIX Studio workflows, and soon RTT-driven AI validation.
Release posture
What is closest to useful now.
Core, Strings, Utilities, Log, LED, Boot, File, Memory, Measurement, OTA, Security, Time, Watchdog, and Xfer already have useful module boundaries or implementations, though several are still limited by examples, platform ports, or hardening work.
What is still moving.
CANStack, Cell, UART, RS-485, Modbus, HTTP, I2C, and SPI are active development areas. Some have host tests and strong foundations; others are planned adapter and protocol work that should be evaluated before product use.
ThreadX product bridges
pimaX
Portable USBX/FileX MTP bridge module extracted from a working ThreadX/Synergy demo, intended for products that need controlled media/device file transfer.
smbX
Native SMB2/SMB3 client work for embedded products that need Windows or Samba share access without a BSD socket shim or heap-heavy desktop stack.
consoleX remote display
Small VNC-compatible firmware/server and PC viewer approach for GUIX products that need remote screen view, touch injection, and hard-key control.
printX
Embedded print client for direct Ethernet and USB host printers, designed for streaming jobs without a full spooler, renderer, or page framebuffer.
AI and development tools
Embedded console tools
Command/menu foundation for embedded service ports, local diagnostics, manufacturing commands, and module diagnostic integration.
Relay I/O board package
ESP32 relay-board firmware, SCPI/TCP bench tools, hardware references, and automation helpers for repeatable validation and fixture control.
MCP tool packages
Local MCP packages for Azure DevOps, JouleScope bench measurement, SmartPlug control, and Relay Board automation.
Multiuser GUIX Studio
Branded GUIX Studio package with headless export and render hooks so multi-developer teams and AI editing loops can inspect GUIX projects without hand-opening every screen.
RTT AI workflows
Planned tooling around SEGGER RTT evidence, firmware interaction, and AI-assisted embedded validation workflows.
Current pricing and access
Shop EFL modules in the Store.
The Store has current availability, pricing, and checkout details.
EFL access
Ask about a module, suggest one, or request integration help.
EFL is early. If one of these modules maps to a product need, start the conversation and we can talk through status, licensing, fit, and support.