Electronics Design AUWhat electronics engineering question can we answer today?
Electronics Design AU is an educational knowledge base answering electronics engineering questions on PCB design, embedded systems, power electronics, RF, EMC, compliance and more — written to be technically accurate, evergreen, and useful to working engineers.
Topics
View all topics →PCB Design
45Schematic capture, layout, stack-up, and design-for-manufacture practices for printed circuit boards.
Embedded Systems
121Microcontroller architecture, real-time firmware, and embedded software design patterns.
Power Electronics
48Switch-mode power supplies, linear regulation, battery charging, and power conversion design.
Analog
25Analog circuit design: amplifiers, filters, signal conditioning, and noise control.
Digital
20Digital logic design, timing, and digital system architecture.
RF
14Radio-frequency design: matching networks, antennas, and RF layout.
EMC
10Electromagnetic compatibility: emissions, immunity, and compliance design practices.
Components
24Passive and active component selection, derating, and datasheet interpretation.
Sensors
33Sensor interfacing, signal conditioning, and measurement accuracy.
Manufacturing
15PCB fabrication, assembly, DFM/DFT, and production test.
Compliance
13Regulatory compliance, safety standards, and certification processes.
Testing
18Hardware validation, automated test, and debugging methodology.
Communications
40Wired and wireless communication protocols: SPI, I2C, UART, CAN, and more.
Wireless
49Wireless protocol selection, radio design, and connectivity trade-offs.
Latest Questions
View more →How Do You Use an Accelerometer for Vibration Analysis and Predictive Maintenance?
How accelerometers capture vibration spectra for predictive maintenance: sample-rate and Nyquist limits, FFT basics, and bearing/imbalance fault signatures.
What Is Altium's PDN Analyzer and When Should You Use It?
Altium's PDN Analyzer checks a completed PCB layout for DC voltage drop and current-density hotspots across power planes and traces. How it works.
How Do You Estimate Battery State of Health (SoH) and Internal Resistance in the Field?
Field SoH estimation for lithium batteries: impedance-track aging, capacity-fade tracking, and DC-resistance pulse testing for embedded product designs.
How Do You Configure the ESP32's Capacitive Touch Sensor Peripheral?
How to configure the ESP32's touch_pad peripheral: channel setup, threshold calibration, IIR filtering against false triggers, and deep sleep wake.
Featured Questions
View more →What Is Bluetooth Low Energy (BLE)?
Bluetooth Low Energy (BLE) is a 2.4 GHz protocol for low-power sensor-to-phone communication. Learn how advertising, GATT, and connection parameters work.
What Is CAN Bus?
CAN bus is a differential, multi-master serial bus where nodes arbitrate by message ID priority. Learn how frames, error confinement, and CAN FD work.
What Is USB?
USB is a host-device protocol for PC connectivity and power delivery. Learn about descriptors, CDC-ACM, HID, DFU classes, and Full Speed vs High Speed.
Need help beyond a quick answer? Zeus Design provides PCB design, firmware development, EMC compliance and broader electronics engineering consulting for teams that need a project delivered, not just explained.