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Circuit Cellar - May 2025

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In dit nummer

4: LapLogic Wireless Automotive Telemetry System - Using Onboard Diagnostic 2 (OBD2) Protocol, By Alex Moore, Illia Pavych, Matthew Pearson, and Adam Schmidt 12:Wake-Up Receivers - Extending Operational Periods in Battery-Powered Applications, By Abel Didouh 18:Design and Implementation of a 3D-Printed Robotic Actuator, By Maheshwaran Sadasivam and Vairamani Kanagavel 26:A 3-Phase Energy Meter with Multicore Support - Using an ESP32 MCU with Voltage and Current Sensors, By Gamal Labib 33: TECHNOLOGY FEATURE: Aerospace and Defense - Outshining Science Fiction, By Caleb Smith 38: DATASHEET: IoT Boards and Modules - A New Era of Connectivity and Intelligence, By Caleb Smith 42: EMBEDDED SYSTEM ESSENTIALS: Experimenting with CHERI on the Sonata Board, By Colin O'Flynn 48: PICKING UP MIXED SIGNALS: Implementing the Matter Protocol - Using the Arduino Nano Matter or Sparkfun Thing Plus Matter Boards, By Brian Millier 62: TECH THE FUTURE: The Future of Cryptography - PQCryptoLib-Embedded and the Quantum Threat, By Michele Sartori

LapLogic Wireless Automotive Telemetry System

Imagine driving on a racetrack, pushing your car to its limits, and wanting detailed insights beyond basic metrics of speed or engine RPM. What about less obvious stats such as engine load, fuel efficiency, or intake air temperature? What if you could access this hidden data—and more—in realtime, right from your smartphone?

10+ mins

Wake-Up Receivers Extending Operational Periods in Battery-Powered Applications

Wake-up receivers allow battery-powered IoT devices to conserve battery life by remaining in a standby state until needed. In this article, Abel discusses the importance of wake-up receivers for achieving low energy consumption, and describes how he built a demonstration prototype with an integrated RFicient wake-up receiver on the PCB.

10+ mins

Design and Implementation of a 3D-Printed Robotic Actuator

A robotic actuator converts energy into physical motion, enabling a robot to move and interact with its environment. In this article, Maheshwaran and Vairamani describe how they designed and assembled a 3D-printed actuator that combines advanced motion control with real-time monitoring.

10+ mins

A 3-Phase Energy Meter with Multicore Support Using an ESP32 MCU with Voltage and Current Sensors

To continuously monitor energy consumption in his home, and store and communicate the data wirelessly, Gamal built a 3-phase energy meter, using a single ESP32 MCU with dual-core architecture, and voltage and current sensors. In his novel design, one core senses voltage and current and calculates consumed energy, while the other, long-forgotten core handles the user's web requests, logs measurements on an SD card, and displays current, voltage, and cumulative power consumption.

10+ mins

Aerospace and Defense Outshining Science Fiction

Explore cutting-edge tech in aerospace and defense. This article examines recent innovations, their direct impact on military operations, and the integration of AI and cybersecurity. Gain insights into future trends that are reshaping the industry and enhancing capabilities.

10+ mins

Datasheet: IoT Boards and Modules A New Era of Connectivity and Intelligence

Dive into IoT board advancements. Breakthroughs in miniaturization, processing power, security, and energy efficiency are transforming design and deployment strategies, revolutionizing the IoT landscape.

2 mins

Experimenting with CHERI on the Sonata Board

The CHERI extension for RISC-V provides a promising way of designing fundamentally secure systems. I introduced this back in November 2023, but at the time there was no easy hardware to work with. This article introduces the open-source hardware (OSHW) Sonata board, which lets you experiment with CHERIot on a more user-friendly platform.

10+ mins

Implementing the Matter Protocol

Using the Arduino Nano Matter or Sparkfun Thing Plus Matter Boards

10+ mins

Macronix Introduces ArmorBoot MX76 for Security and High Performance in Automotive IoT Markets

Macronix, a leading global non-volatile memory (NVM) integrated device manufacturer, has launched its all-new ArmorBoot MX76 series flash memory.

2 mins

Trident IoT Software Development Kits For Z-Wave/ZWLR And Zigbee RF SoCs

Trident IoT, is proud to announce the release of its highly anticipated software development kits (SDKS) for its latest line of Z-Wave/ZWLR and Zigbee RF system-on-chips (SoCs).

1 mins

GigaDevice's Dual-Power Supply SPI NOR Flash for 1.2V SoCs Halves Read Power Consumption

GigaDevice, a leading semiconductor company specializing in flash Memory, 32-bit microcontrollers (MCUs), sensors, analog products and solutions, has unveiled the GD25NE series of dual-power supply SPI NOR Flash, designed specifically for 1.2V system-on-chip (SoC) applications.

1 mins

Direct Insight Creates QNX 8 BSP for QS93 i.MX93 Solder-Down SoM

Direct Insight, the UK-based technical systems integrator and reseller of system-on-module (SoM) and other embedded systems, has created a QNX 8 BSP (board support package) for Ka-Ro’s QS93 solder-down module with NXP’s i.MX93 processor.

1 mins

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Circuit Cellar Description:

Uitgever: KCK-Media-Corp.

Categorie: Education

Taal: English

Frequentie: Monthly

Circuit Cellar magazine features engineering tutorials, detailed microcontroller-based projects, and embedded systems industry news for professional electrical engineers, EE/ECE academics, and highly skilled electronics enthusiasts. Since 1988, Circuit Cellar has featured projects and tutorials from the world's top engineers on subjects such as embedded development (e.g., prototyping and programming), signal processing (e.g., DSP chips and signal conditioning), programmable logic (e.g., FPGA projects), sensor systems (e.g., smart sensors and MEMS), 'Net-connected devices (e.g., IoT projects and protocol stacks), robotics (e.g., robotic systems and proximity sensing), and much more. Circuit Cellar is the ultimate resource for all of your electrical engineering-related needs.