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RoadTest: RoadTest Open Call

Author: skruglewicz

Creation date: 8 Nov 2026

Evaluation Type: Development Boards & Tools

Did you receive all parts the manufacturer stated would be included in the package?: True

What other parts do you consider comparable to this product?: 03030215 CAN-BUS Shield Board, MCP2515, MCP2551, Controller and Transceiver, Arduino Board (SEEED STUDIO) SHIELDBTS70021EPPTOBO1 ARDUINO SHIELD, HIGH-SIDE SW, 12V, 21A ROHS COMPLIANT: YES (INFINEON)

What were the biggest problems encountered?: todo

Detailed Review:

Title Banner: “Evaluating Modulino Nodes and Shield Integration on the Arduino UNO Q” featuring the Arduino UNO Q flanked by the Plug and Make Kit, Infineon BLDC Shield, and MIKROE-1581 Click Shield

1. Introduction

This RoadTest Open Call turns the traditional RoadTest concept around by letting members choose the exact product they want to test and review. Applicants can choose any product under $175 (such as single-board computers, development kits, or bench equipment) available on the Newark / Farnell / element14 online stores. Selected RoadTesters were announced and received their requested products for free in exchange for writing a comprehensive review. I was fortunate to be chosen to write a review based on products I selected from the online store.

I will be using the Arduino UNO Q board currently in my possession as the core processing engine for this evaluation. Rather than functioning as a standard micro-controller board, the UNO Q introduces a transformative shift to the traditional Arduino workflow, marking an impressive milestone for embedded hardware design.

I road tested the Arduino UNO Q here: Test out Arduino's Uno Q - The new Single-Board Computer and was incredibly impressed by its hybrid MPU/MCU architecture. While I pushed the board's internal capabilities to its limits, I was highly motivated to evaluate its physical expandability. I wanted to test Arduino's claim of seamless compatibility with the wider ecosystem—specifically how it handles classic arduino shields, Qwiic connectors, and Modulino nodes—to see if it can truly serve as the ultimate industrial/hobbyist bridge.

I might also mention that I have connected a Grove base shield to a UNO Q with great success. Feel free to view my project, which earned 3rd Place in the element14 On The Line Design Challenge at this link: Industrial Line Sentinel (ILS).

The type of review I am doing is an out-of-the-box experience with the expansion products supplied to me by the Roadtest team. I will do an unboxing, power the product up, check any pre-programmed options or features, and follow the user guides and review them for each product.

These are the devices that I will be reviewing. I proposed these products to possibly test the ecosystem, and was given them to review:

• AKX00069 Plug and Make Kit (Plug and Make Kit)    

• BLDCSHIELDTLE9879TOBO1 (BLDC MOTOR DRIVER Shield)

• MIKROE-1581 (Arduino UNO Click Shield)

The scope of my evaluation focuses on an out-of-the-box review for these three expansion products detailed below. Each product will undergo individual testing, covering unboxing, initial power-up, assessing stock configurations, and executing the official user guides to review the full experience.

2. Reviewer Background & The Compatibility Hypothesis

As a retired Senior Software Engineer holding a Bachelor of Science in Computer Science from Boston University, my embedded systems work focuses on system architecture, inter-processor communication (IPC), and hardware-in-the-loop validation. Over years of participating in element14 Design Challenges and RoadTests, I have evaluated dozens of development ecosystems across Renesas, NXP, Infineon, Nordic, and STMicroelectronics.

Building on my previous RoadTest of the UNO Q and my work in the element14 Summer of Sensors Design Challenge—where I published a technical series (e.g., Under Pressure - BLOG 1 - BPM Uno - INTRODUCTION) evaluating the MIKROE-1581 Click Shield with optical biosensors—this review dives deeper into multi-bus hardware integration.

The Engineering Hypothesis

Traditional 8-bit and 32-bit microcontrollers easily manage hardware shields because they interact with a single, dedicated execution loop. In contrast, modern single-board computers often sacrifice pin-level deterministic timing to support an operating system. The Arduino UNO Q claims to solve this dilemma through its dual-brain design.

My hypothesis asserts that:

• The UNO Q can reliably operate low-voltage 3.3V I2C sensor daisy-chains, high-power inductive motor actuators on SPI, and multi-protocol Click sockets concurrently.
• The internal Router Bridge can cleanly isolate real-time hardware execution on the STM32 MCU while streaming rich telemetrics into Linux services on the Qualcomm MPU without timing jitter or packet loss.

3. The Triad of Expansion Hardware & Series Roadmap

To provide thorough, rigorous testing without forcing multiple unrelated technologies into a single sprawling review, I have structured this Open Call evaluation into three dedicated child RoadTests, anchored by this master introduction:

RoadTest 1: Modulino® Node Integration with the AKX00069 Plug and Make Kit

[LINK] UNDER CONSTRUCTION

• Product Under Test: Arduino Plug and Make Kit (AKX00069)
• Testing Scope: Solderless 3.3V Qwiic I2C bus daisy-chaining across all seven bundled Modulino nodes: Distance (VL53L4CD ToF), Movement (LSM6DSOXTR 6-axis IMU), Thermo (HS3003 temperature/humidity), Knob (STM32C011F4 rotary encoder), Pixels (8x addressable RGB LEDs), Buzzer, and Buttons.
• Evaluation Focus: Electrical bus stability at 400 kHz Fast Mode, address collision handling, mechanical stability on the Modulino Base plate, and driver execution using the official Arduino_Modulino library.

RoadTest 2: Shield Integration with the Infineon BLDCSHIELDTLE9879TOBO1 Shield

[LINK] UNDER CONSTRUCTION

• Product Under Test: Infineon BLDC Motor Driver Shield
• Testing Scope: Stacking an automotive-grade evaluation board powered by the Infineon TLE9879QXA40 system-on-chip onto the UNO Q's R3 headers.
• Evaluation Focus: High-current 3-phase motor actuation via SPI commands, back-EMF inductive transient suppression, electrical isolation between power MOSFET stages and the UNO Q logic rail, and offloading Field-Oriented Control (FOC) algorithms to the TLE9879's on-chip Arm® Cortex®-M3 core.

RoadTest 3: Shield Integration with the MIKROE-1581 Arduino UNO Click Shield

[LINK] UNDER CONSTRUCTION

• Product Under Test: MIKROE-1581 Arduino UNO Click Shield
• Testing Scope: Interfacing the UNO Q with MikroElektronika's mikroBUS expansion standard via dual 16-pin host sockets.
• Evaluation Focus: Validating socket pin distribution across SPI, I2C, UART, PWM, and analog lines; testing five specific Click boards from my bench collection; comparing the Arduino IDE development workflow with MikroElektronika's NECTO Studio and mikroSDK.

4. Dual-Brain System Architecture & The Router Bridge

The architectural breakthrough of the Arduino UNO Q lies in its asymmetric multiprocessing (AMP) design. Embedded developers have historically been forced to choose between the high compute capacity of a single-board computer and the deterministic low-latency responsiveness of a microcontroller. The UNO Q provides both simultaneously:

                               

1. STM32U585 Microcontroller Core (Real-Time Determinism)

• Core: 32-bit Arm® Cortex®-M33 running at up to 160 MHz with Zephyr RTOS and Arduino Core.
• Responsibilities: Hard real-time execution, millisecond-accurate sensor polling, interrupt handling, and direct hardware signaling across GPIO, SPI, and I2C lines.
• Peripheral Bus Ownership: Directly manages the Qwiic I2C bus (Modulino nodes), the SPI bus (Infineon BLDC driver and LSM6DSL Click), and hardware interrupt lines from optical biosensors.

2. Qualcomm Dragonwing QRB2210 Microprocessor Core (Edge Intelligence & Networking)

• Core: Quad-core 64-bit Arm® Cortex®-A53 running Debian-based Linux.
• Responsibilities: Network communications (dual-band Wi-Fi 5, Bluetooth 5.1), database storage, Docker container execution, web service hosting, and AI inference.
• App Lab Runtime: Serves the local Arduino App Lab environment and hosts dynamic web dashboards for visualization and operator control.

3. The Router Bridge Inter-Processor Communication (IPC)

The internal Router Bridge links the two processors over an ultra-low-latency inter-processor communication channel. Firmware running on the STM32 formats polled telemetry into lightweight JSON packets sent over the bridge. A background Python service on the Qualcomm Linux MPU ingests this stream, performs higher-level processing, and publishes metrics to the web dashboard. Conversely, operator commands issued from the web interface pass across the bridge to trigger immediate hardware actuation on the MCU.

5. Standardized 7-Point Evaluation Framework

To provide consistency across all three dedicated product reviews, each evaluation follows a standardized 7-point testing framework:

• 1. Overall Rating Score & Detailed Breakdown: A multi-dimensional scorecard evaluating hardware engineering, driver stability, documentation quality, ecosystem flexibility, and price-to-performance value.
• 2. Unboxing & Packaging Overview: First impressions, packaging materials, anti-static ESD shielding, labeling clarity, and condition upon arrival.
• 3. Components & Accessories Inventory: An itemized inventory of all PCBs, interconnect cables (Qwiic, ribbon), mechanical baseplates, standoffs, fasteners, and documentation.
• 4. Specification Notes & Architectural Overview: Electrical parameters, logic voltage compatibility (3.3V vs. 5V), current draw limits, pin multiplexing, and thermal dissipation.
• 5. Documentation & Learning Resources Review: Critical assessment of manufacturer schematics, user manuals, API reference docs, example code quality, and active community forums.
• 6. Develop, Implement, and Document an App Lab Hybrid Application:
  • System Architecture & Telemetry Dashboard: Full source code walkthrough of the real-time C++ MCU firmware and the MPU Python telemetry daemon, paired with a custom web dashboard.
  • Bus Communication & Router Bridge Analysis: Empirical stress-testing of communication latency, packet drop rates, and bus contention under heavy loads.
• 7. Final Verdict & Product Recommendations: Objective summaries of strengths, limitations, practical application suitability (industrial, educational, commercial), and final takeaways.

6. RoadTest Execution Milestones & Delivery Roadmap

With hardware officially received at my lab in West Boylston, Massachusetts, the evaluation roadmap is scheduled across the standard 60-day element14 review cycle:

• Phase 1 (Weeks 1–2): Hardware Receipt, Unboxing & Baseline Qualification
  • Verification of all delivered items against the Newark/Farnell packing list.
  • Baseline power-up, ESD check, and firmware flashing tests on the Arduino UNO Q.
  • Publication of this overarching master introduction review.
• Phase 2 (Weeks 3–4): RoadTest 1 — Modulino Node & Qwiic Integration
  • Assembling the Modulino Base and daisy-chaining seven sensor/actuator nodes.
  • Testing I2C bus signal integrity at 400 kHz Fast Mode.
  • Publication of dedicated RoadTest 1 review on element14.
• Phase 3 (Weeks 5–6): RoadTest 2 — Infineon BLDC Motor Shield Integration
  • Stacking the evaluation board, wiring a 3-phase BLDC motor, and connecting external bench power.
  • Validating SPI command sets, FOC algorithms, and electrical isolation under inductive loads.
  • Publication of dedicated RoadTest 2 review on element14.
• Phase 4 (Weeks 7–8): RoadTest 3 — MIKROE-1581 Click Shield Integration
  • Mounting the Click Shield and testing biomedical (MAX30100/MAX30101/MAX30102), motion (LSM6DSL), and relay expansion boards.
  • Benchmarking Arduino IDE community libraries against MikroElektronika NECTO Studio.
  • Publication of dedicated RoadTest 3 review on element14.
• Phase 5 (Weeks 9–10): Series Synthesis, Final Review Wrap-Up & Community Engagement
  • Compiling overall ecosystem compatibility takeaways across the Modulino Qwiic, Infineon SPI, and MIKROE-1581 architectures.
  • Final synthesis, cross-platform comparative analysis, and element14 community discussion.

7. Summary & Next Steps

The element14 RoadTest Open Call offers an ideal platform to explore how well the Arduino UNO Q bridges modern modular sensor nodes, classic high-power shields, and standardized socket adapters. By splitting this evaluation into dedicated child reviews anchored by this introduction, each expansion architecture receives the rigorous testing it deserves.

Stay tuned for the publication of RoadTest 1: Modulino Integration with the AKX00069 Plug and Make Kit, followed shortly by the Infineon BLDC Motor Shield and MIKROE-1581 Click Shield evaluations!