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Circuit Cellar - January 2026

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4: Build a Miniature Greenhouse for Hydroponic and Potted Plants - Automated Monitoring with a Raspberry Pi 4B, By Evan Leong and Vidhi Srivastava 12: Build a Smart Energy Meter to Track Home Power Usage - Using an ESP32 Dev Kit and PZEM-004T Energy Sensor Module, By Maheshwaran Sadasivam 20: Designing Analog Electronics - Part 3: Filters for AC Circuits, By Andrew Levido 28: TECHNOLOGY FEATURE: The Pulse of Innovation - Introduction: The Rise of Wearable Technology, By Curtis Franklin 38: DATASHEET: Power Quality Monitoring - Watching the Peaks and Valleys - Systems for Monitoring Power Quality for Homes and Industry, By Curtis Franklin 42: PICKING UP MIXED SIGNALS: IR Images Come to Your Cellphone, By Brian Millier 52: EMBEDDED SYSTEM ESSENTIALS: Hands-On Buffer Overflow - Experimenting with Embedded System Vulnerabilities, By Colin O'Flynn 63: TECH THE FUTURE: The Future of Edge AI Ultra-Low Power Edge AI - The Case for Intelligence at the Source, By Adinor Puplampu

Build a Miniature Greenhouse for Hydroponic and Potted Plants

Automated Monitoring with a Raspberry Pi 4B

10+ mins

Build a Smart Energy Meter to Track Home Power Use

Using an ESP32 Dev Kit and PZEM-004T Energy Sensor Module

10+ mins

10 Designing Analog Electronics Part 3: Filters for AC Circuits

Designing analog electronics hardware is less orderly and predictable than digital electronics design. Part 3 of this article series follows two articles on designing for DC circuits. This month, Andrew focuses on key concepts for the design of filters used to remove unwanted components of AC circuits.

10+ mins

The Pulse of Innovation 600

The Rise of Wearable Technology

10+ mins

Datasheet: Power Quality Monitoring Watching the Peaks and Valleys

Systems for Monitoring Power Quality for Homes and Industry

2 mins

IR Images Come to Your Cellphone

In this article Brian uses a Melexis MLX90640 IR camera module coupled to an ESP32 controller. He streams the image data to a web browser running on a cell phone, tablet, or computer, eliminating the need for a dedicated color LCD. Together, this makes for a very low-price IR camera.

10+ mins

Saelig Introduces Economical AIM-TTI ATG1005 5MHz Function Generator

Saelig Co., Inc. announces the AIM-TTI ATG1005 Touchscreen Function Generator, which uses advanced Direct Digital Synthesis (DDS) technology to deliver high-quality, low-distortion Sine, Square, and Pulse waveforms to 5MHz, and triangle waveforms to 500kHz.

1 mins

SemiQ Expands 1200V Gen3 SiC MOSFET Line with Launch of 7.4, 14.5, and 34m2 SOT-227 Modules

SemiQ Inc, a designer, developer, and global supplier of superior silicon carbide (SiC) solutions for ultra-efficient, high- performance, and high-voltage applications, has expanded its family of 1200V Gen3 SiC MOSFETs, launching five SOT- 227 modules that offer RDSon values of 7.4, 14.5, and 34mΩ.

1 mins

Nordic Semiconductor Unveils nRF54LV10A - Breakthrough Low-Voltage Bluetooth LE SOC for Next-Gen Healthcare Wearables

Nordic Semiconductor, a global leader in low-power wireless connectivity solutions, launches the nRF54LV10A SoC, setting a new benchmark for integration, performance, and battery life in the smallest medical devices.

2 mins

STMicroelectronics' Intelligent Power Switch Automatically Adjusts to Handle Inrush Current

STMicroelectronics' IPS1050LQ low-side switch IC provides flexible overcurrent protection, including a static mode with fixed, programmable current limit and a dynamic mode that safely handles high inrush current.

1 mins

The Future of Edge AI Ultra-Low Power Edge AI

The Case for Intelligence at the Source

3 mins

اقرأ جميع القصص من Circuit Cellar

Circuit Cellar Description:

الناشر: KCK-Media-Corp.

فئة: Education

لغة: English

تكرار: 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.