Arduino engineering projects, experiments and integration notes from FermiLabs. The archive covers Arduino UNO Q, GIGA R1, embedded firmware, MCU-to-Linux data transport, EFBus, deterministic gateways, signal acquisition and reusable testing workflows. Articles distinguish source-level validation, Linux application runtime, hardware measurements and future platform plans, with versioned implementation details and reproducibility information when available.
How FermiLabs built and validated a shared C++/LVGL laboratory on the Arduino GIGA Display Shield — architecture, authentic C64 execution, physical release evidence and remaining qualification gates.
How a 500 kHz four-phase power-electronics requirement became a reusable Arduino UNO Q waveform capability, why programmed and measured signals must stay separate, and how the work connects EFBus, SpeedCircuits and OpenDAQ.
How an IOLITE EtherCAT gateway experiment started FermiLabs’ Arduino and Dewesoft measurement work, and why openDAQ became the shared signal model.
The evolution of EFBus from robot-oriented MCU/Linux transport to a reusable typed acquisition boundary, without conflating EFBus with openDAQ Native.
An evidence-led openDAQ 3.40.3 installation and Native reference-device workflow on Linux ARM64, with exact host and lifecycle qualification.
A reproducible openDAQ 3.40.3/ LT 4.0.3 engineering comparison of channel values and reference-domain metadata across transport boundaries.
How SpeedCircuits combines browser-local ngspice circuit studies with evidence-aware DAQ concepts, preparing a path from simulation to reference and later physical measurement.
How the Arduino GIGA R1 became an eight-channel openDAQ Streaming LT device, with July 2026 hardware measurements and DewesoftM validation.