Understanding the AMBA AXI4 Spec

The Backbone Protocol AMBA is an open standard for the connection and management of functional blocks in an SoC. In this article, Nishant reviews the history of AMBA, and then focuses on one of AMBA’s protocol specs, AXI4, and how it improves performance and bandwidth. An open standard for on-chip interconnect specifications, the Arm Advanced […] The post Understanding the …

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MPLAB Cloud Tools Support PIC and AVR MCUs

Microchip Technology has announced that its new MPLAB cloud tools ecosystem is available today for PIC and AVR MCU devices. The free, all-in-one cloud platform combines easy, integrated search and discovery of example code, graphical configuration of projects and code debugging in a collaborative environment. This environment enables enterprise-scale rapid development while simplifying software design […] The post MPLAB Cloud …

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Build an RF-Controlled Robotic Car

Using Two PIC32 MCUs In this project article, learn how these Cornell students implemented an RF wireless vehicle, using two PIC32s that can be controlled using a steering-wheel-like interface equipped with an accelerometer to make the controls intuitive. The MCUs communicate between the wheel and the robot using 434MHz RF technology. Today, remote motion-control applications […] The post Build an …

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Control and Monitor Valves Remotely

High-Tech Plumbing with 8-bit MCU Plumbing and electronics seem like quite separate disciplines, but not in this era of technology. Jeff needed to control multiple valves from a distance, so he created a circuit that could be powered and controlled locally, while allowing an external controller to control and monitor it from afar. In this […] The post Control and …

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Power Efficient MPUs Embed AI Accelerator

Renesas Electronics has announced the expansion of its RZ/V Series of microprocessors (MPUs) with the new RZ/V2L MPUs designed for entry-level AI-enabled applications. As part of the RZ/V Series, the new MPUs incorporate Renesas’ exclusive AI accelerator—the DRP-AI (Dynamically Reconfigurable Processor)— to make embedded AI easier and more power efficient. The new RZ/V2L shares several […] The post Power Efficient …

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August Circuit Cellar: Sneak Preview

The August issue of Circuit Cellar is coming your way next week! Time for a sneak peek at what’s inside the next issue. Technologies for Smart Buildings, 1-Wire protocol project, build a full home security system, application-specific MCUs, 3-phase electric power, FPGAs and GPUs for AI and more! This 84-page mag welcomes you into a […] The post August Circuit …

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Build a Rubik’s-Cube-Solving Robot

Using a PIC32 MCU Can a PIC32 MCU solve a Rubik’s cube faster than a human? To find out, these two Cornell students built a self-contained robot that can solve Rubik’s cube. The system uses image processing Python script and specialized algorithms to solve the puzzle. While hanging around at home with a couple of […] The post Build a …

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Renesas Extends Azure RTOS Support Across its 32-bit MCUs

Renesas Electronics has announced that customers designing with all mainstream Renesas 32-bit MCU families now have access to Microsoft Azure Real-Time Operating System (RTOS) embedded development suite, including its powerful Azure IoT middleware. Azure RTOS is integrated and available out-of-box in the recently released Flexible Software Package (FSP) version 3.0 for the Renesas’ RA Family […] The post Renesas Extends …

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MCUs Tout 10x Performance Boosts up to 1GHz

Texas Instruments (TI) has introduced a new high- performance MCU portfolio designed for real-time control, networking and analytics applications at the edge. With new Sitara AM2x MCUs, engineers can achieve 10 times the computing capability of traditional, flash-based MCUs, according to TI. The portfolio is intended to serve the performance gap between today’s MCUs and […] The post MCUs Tout …

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Using ESP-NOW Protocol – Part 2

Hardware Description In Part 1 of this series, Brian discussed the benefits of the ESP-NOW protocol, and shared how it improved battery life in his ESP-based leak detector modules. In Part 2, Brian describes the circuitry and programming of the various modules making up his ESP-NOW home control system. In Part 1 of this article […] The post Using ESP-NOW …

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Skateboard: Simple and Secure

Wireless Control with Bluetooth Low Energy 4.0 It’s becoming harder and harder to justify not incorporating either Wi-Fi or Bluetooth within any project or design. Fortunately, the process of including Bluetooth Low Energy 4.0 (BLE) in your designs is fairly straightforward. This article presents a wireless BLE control system for an electric longboard. Consumer devices […] The post Skateboard: Simple …

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Using ESP-NOW Protocol – Part 1

A Low-Power Wi-Fi Alternative ESP32-NOW protocol enables low-overhead, peer-to-peer wireless data transfers among members of Espressif’s ESP MCU family. In Part 1 of this series, Brian discusses the benefits of the protocol, and shares how it improved battery life in his ESP-based leak detector modules. Ever since Espressif introduced the ESP8266, I’ve been doing Wi-Fi […] The post Using ESP-NOW …

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