Circuit Cellar
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+ min |
January 2026
Circuit Cellar
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 min |
January 2026
Circuit Cellar
The Future of Edge AI Ultra-Low Power Edge AI
The Case for Intelligence at the Source
3 min |
January 2026
Circuit Cellar
Build a Miniature Greenhouse for Hydroponic and Potted Plants
Automated Monitoring with a Raspberry Pi 4B
10 min |
January 2026
Circuit Cellar
Build a Smart Energy Meter to Track Home Power Use
Using an ESP32 Dev Kit and PZEM-004T Energy Sensor Module
10+ min |
January 2026
Circuit Cellar
The Pulse of Innovation 600
The Rise of Wearable Technology
10+ min |
January 2026
Circuit Cellar
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 min |
January 2026
Circuit Cellar
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 min |
January 2026
Circuit Cellar
Datasheet: Power Quality Monitoring Watching the Peaks and Valleys
Systems for Monitoring Power Quality for Homes and Industry
2 min |
January 2026
Circuit Cellar
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+ min |
January 2026
Circuit Cellar
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 min |
January 2026
Circuit Cellar
Understanding MCU Timing
What Actually Happens Inside That Chip?
10+ min |
December 2025
Circuit Cellar
TDK Announces 1U High, 13-Output Modular Power Supply Delivering up to 1500 W with Extremely Low Acoustic Noise
TDK Corp. announces the expansion of the TDK-Lambda MU series with the introduction of the MU6 modular power supplies.
2 min |
December 2025
Circuit Cellar
Analog Devices Launches ADI Power Studio and New Web-Based Tools
Analog Devices, Inc. (ADI), a global semiconductor leader, announced the launch of ADI Power Studio, a comprehensive family of products that offers advanced modeling, component recommendations, and efficiency analysis with simulation.
1 min |
December 2025
Circuit Cellar
Sensors in the Spotlight
The Next Decade of Embedded Sensor Systems
10+ min |
December 2025
Circuit Cellar
Alif Semiconductor Elevates Generative AI at the Edge with New Support for ExecuTorch Runtime in Its Ensemble MCUs
Alif Semiconductor, the leading global supplier of secure, connected, power efficient Artificial Intelligence and Machine Learning (AI/ML) microcontrollers (MCUs) and fusion processors, announced that developers can now use the ExecuTorch Runtime, a quantization extension of the popular PyTorch ML framework, for AI applications built to run on its Ensemble E4/E6/E8 series of MCUs and fusion processors.
1 min |
December 2025
Circuit Cellar
Encrypted MQTT Protocol for Critical Sectors
Mechanisms, Challenges, and Best Practices
3 min |
December 2025
Circuit Cellar
The Future of Sensors in Safety Systems Sensing the Stop
How Magnetic Sensors Are Enabling the Next Generation of Braking Systems
5 min |
December 2025
Circuit Cellar
Compact IBR300 2.5" SBC Powered by NXP i.MX 93 from IBASE
IBASE Technology, Inc., a leading provider of rugged embedded computing platforms, announced the release of the IBR300, a 2.5\" RISC-based single board computer (SBC) powered by the NXP i.MX 93 processor with dualcore ARM Cortex-A55 (up to 1.7GHz) and a Cortex-M33 MCU.
1 min |
December 2025
Circuit Cellar
Designing Embedded Software Architectures That Last
I've reviewed hundreds of firmware projects over the years, and one thing always stands out: the most successful projects have a clear, deliberate architecture.
10 min |
December 2025
Circuit Cellar
Designing Analog Electronics 11
Part 2: Signal Conditioning with Op Amps
10+ min |
December 2025
Circuit Cellar
Bob's Wrap Up
In Bob's last article with Circuit Cellar, he attempts to wrap up a career of more than 50 years as an embedded systems engineer and 14 years with Circuit Cellar. He looks at each of his 58 articles by category and provides some recommendations for his fellow engineers.
7 min |
December 2025
Circuit Cellar
Broadcom Introduces Industry's First Wi-Fi 8 Silicon Ecosystem Powering the AI Era
Broadcom, Inc. unveiled the first Wi-Fi 8 silicon solutions for broadband wireless, targeting residential gateways, enterprise access points, and smart mobile clients.
1 min |
December 2025
Circuit Cellar
GD32 MCU Family Expands High-Performance Portfolio with New GD32F503/505 Series MCU
GigaDevice, a leading semiconductor company specializing in Flash memory, 32-bit microcontrollers (MCUs), sensors, and analog products, announced the official launch of the GD32F503/505 series of high-performance 32-bit MCUs, expanding its product range based on the ARM Cortex-M33 core.
1 min |
December 2025
Circuit Cellar
Datasheet: Small Size, Big Power
Smaller Microcontrollers Bring New Possibilities
9 min |
December 2025
Circuit Cellar
The Future of Embedded Systems and AI: AI in Embedded Systems
Cybersecurity Challenges and Opportunities in a Smarter World
4 min |
November 2025
Circuit Cellar
Keeping Time with Rolling Balls - An Arduino-Controlled Gravitram Clock
An Arduino Zero turns out to be the perfect controller when Kagan sets out to keep time with stacked columns of rolling balls in a novel desktop clock
10+ min |
November 2025
Circuit Cellar
Using a Desktop Laser Engraver to Probe into Chip Silicon
Laser fault injection is a common method of attacking devices, but sometimes we want to first understand what a device looks like or what certain blocks on the surface of the device die are. This article shows how you can use a low-cost laser engraver to map out these blocks, even without more advanced fault injection equipment.
8 min |
November 2025
Circuit Cellar
CIA for SBCs (and More)
Securing Embedded Systems from Evolving Threats
10+ min |
November 2025
Circuit Cellar
STMicroelectronics' New Automotive Linear Voltage Regulator Preserves Battery Energy in Challenging Conditions
The TL99VR03 300mA low-dropout (LDO) regulator provides resilient and efficient power, with a wide input-voltage range and very low quiescent current consumption, only 3.5µA at no load. The IC has an enable pin for turning the regulator off, which reduces the idle current to 800nA, and integrates soft-start circuitry to limit current during power-up and fault recovery.
1 min |