Education
Circuit Cellar
A GPS-Disciplined Frequency Counter using the PSoC 5LP
In this month's column, Brian tasks one of his mixed-signal favorite MCUs, the Infineon PSoC 5LP, to build a frequency/ period counter using a GPS satellite module to discipline the project's time base.
10+ min |
November 2025
Circuit Cellar
Designing Analog Electronics
Part 1: Error and Uncertainty
10+ min |
November 2025
Circuit Cellar
Samtec Launches 800-Position AcceleRate HP High-Performance Array Connectors
Samtec, Inc., a global leader in high-performance interconnect solutions and a service leader in the industry, announces the expansion of its AcceleRate HP product line with the release of 800-position APM6 and APF6 high-performance array connectors available in a low-profile 5mm stack height.
1 min |
November 2025
Circuit Cellar
CIA for SBCs (and More)
Securing Embedded Systems from Evolving Threats
10+ min |
November 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
An ESP32 Dashboard
Monitoring How a Popular Microcontroller Uses Resources
10+ min |
November 2025
Circuit Cellar
Vishay Intertechnology Power Metal Strip Resistor Delivers Power to 5 W in Compact 1206 Case Size
Vishay Intertechnology, Inc. introduced a new surfacemount Power Metal Strip current sense resistor that combines a high power rating up to 5W, TCR down to ± 75ppm/°C, and extremely low resistance values down to 0.3mΩ in the compact 1206 case size.
2 min |
November 2025
Circuit Cellar
ROHM Develops New Smart Switches Optimized for Zonal Controllers
ROHM Semiconductor announced the release of six new high-side smart switches (IPDs: Intelligent Power Devices) featuring highly accurate current sensing and low ON resistances ranging from 9mΩ to 180mΩ.
1 min |
November 2025
Circuit Cellar
Bourns Expands Semi-Shielded Power Inductor Portfolio with New Series Featuring Higher Maximum Inductance Values
Bourns, Inc., a leading manufacturer and supplier of electronic components for power, protection, and sensing solutions, announced the expansion of its semi-shielded power inductors.
1 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 |
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
Datasheet: Making the Right Voltage
DC-to-DC Converters Bring the Right Voltage to Circuits
2 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
Mesh Networks
Reliable, Decentralized Communication Where Single Routers Fail
8 min |
October 2025
Circuit Cellar
Renesas Introduces 64-bit RZ/G3E MPU for High-Performance HMI Systems Requiring AI Acceleration and Edge Computing
Renesas Electronics Corp., a premier supplier of advanced semiconductor solutions, announced the launch of its new 64-bit RZ/G3E microprocessor (MPU), a general-purpose device optimized for high-performance Human Machine Interface (HMI) applications. Combining a quad-core ARM Cortex-A55 running at up to 1.8GHz with a Neural Processing Unit (NPU), the RZ/G3E brings high-performance edge computing with AI inference for faster, more efficient local processing. With Full HD graphics support and high-speed connectivity, the MPU targets HMI systems for industrial and consumer segments including factory equipment, medical monitors, retail terminals, and building automation.
1 min |
October 2025
Circuit Cellar
Synth Hero: Where Synth Legends Are Made
Creating a Retro Game Using a Raspberry Pi RP2040 MCU
10 min |
October 2025
Circuit Cellar
MQTT in the Real World
Migrating Legacy Protocols to MQTT
4 min |
October 2025
Circuit Cellar
Keeping Your Pi Safe
Part 1-Basic Encryption Functions with the TPM9670 Chip
8 min |
October 2025
Circuit Cellar
The Future of Microsegmentation Cyber Defense What Is OT Breach-Ready Cyber Defense?
Microsegmentation Is Strategic Defense Against Intrusion Damage
4 min |
October 2025
Circuit Cellar
Audio Power Amplifiers
Choosing an Audio Amplifier for Your Design
9 min |
October 2025
Circuit Cellar
Datasheet: MEMS Sensors
MEMS Chips Bring Programs and Action Together
8 min |
October 2025
Circuit Cellar
TDK Expands Ultra-Low Voltage TVS Diode Portfolio for High-Speed Consumer Interfaces
TDK Corporation has expanded its ultra-low clamping voltage TVS diode lineup with three new models in the SD0201 series, tailored for high-speed consumer electronics interfaces. These TVS diodes offer compact protection for USB Type-C, HDMI, DisplayPort, and Thunderbolt connections in smartphones, laptops, tablets, wearables, and networking devices.
1 min |
October 2025
Circuit Cellar
XP Power Introduces Digital Programmable, Compact 1.5kW AC-DC Power Supplies
NXP Power has introduced the HPA1K5 Series. The HPA series of programmable, scalable, configurable AC-DC power supplies deliver 1.5kW of power from a universal single phase input with single outputs ranging from 24 to 60VDC.
1 min |
October 2025
Circuit Cellar
Embedded AI
AI Comes to the Operational Network's Edge
10+ min |
October 2025
Circuit Cellar
New High-Voltage Programmable Resistor Modules from Pickering Provide a Simple Solution for Applications Requiring Voltage Handling up to 1.2kV
Pickering Interfaces, the leading supplier of modular signal switching and simulation solutions for use in electronic test and verification, has announced a new family of high voltage programmable resistor modules in a compact single-slot PXI and PXIe form factor, model 40-230 (PXI) and 42-230 (PXIe), providing a simple solution for applications requiring voltage handling up to 1.2kV. Part of Pickering's expanding range of programmable resistor modules, the new module is available in 70 standard builds, including four single-channel builds that offer a wide variety of resistance ranges and resolution capabilities, playing a pivotal role in simulating real-world resistive loads and fault conditions for high-voltage devices-under-test (DUTs) across automotive, aerospace, and energy sectors.
1 min |
October 2025
Circuit Cellar
Infineon and Delta Collaborate on High-Density Power Modules to Accelerate Data Center Power Architecture
Infineon Technologies AG announced the strengthening of its existing collaboration with Delta Electronics, Inc., in the development of state-of-the-art high-density power modules capable of enabling vertical power delivery to AI processors in hyperscale data centers. Together, the companies are taking a next step to drive decarbonization and digitalization in AI data centers further.
2 min |
October 2025
Circuit Cellar
Automating Metrics in Modern Embedded Development
Complex modern embedded systems can be impossible to debug without serious metrics on performance, resource use, and error conditions. Collecting those metrics manually is laborious and error-prone. Jacob explores the metrics that matter and shows how collecting and delivering them can-and should-be automated.
7 min |
October 2025
Circuit Cellar
Binary Fixed-Point Arithmetic
Extracting Signals from Noise and Other Distractions
9 min |
October 2025
Circuit Cellar
AI Coding Has Limits
Are you feeling the vibe? I’m not talking about the atmosphere down at the restaurant that’s too busy to take your reservation—I’m talking about the vibe that seems like it’s putting programmers out of business faster than a return to the abacus. Vibe Programming is a real thing; whether it’s a really good thing remains a very active question.
2 min |
October 2025
Circuit Cellar
Bourns Announces New Micro Encoders Offering High Reliability in a Compact Design
Bourns, Inc., a leading manufacturer and supplier of electronic components for power, protection, and sensing solutions, announced its PEC04 Series 4mm Incremental Micro Encoder, its PEC05 Series 5mm Incremental Micro Encoder and its Model PEC06, a 6mm Incremental Micro Encoder. Bourns new micro encoders provide position and speed information essential for control functions in a broad variety of electronic applications.
1 min |