Build a Face Recognition System with ESP32-CAM

Guide to building an ESP32-CAM face recognition security camera: hardware overview, wiring and FTDI programming, Arduino IDE setup, CameraWebServer code and web UI steps.

Tactile Sensor Technologies for Soft Robotic Hands

Review of tactile sensing for soft robotic hands: sensor types, sensing modalities, system integration, applications, challenges and research directions.

Capacitive Touch Fundamentals and Two Sensing Types

Technical overview of capacitive sensing methods and sensor geometries, explaining self-capacitance and mutual-capacitance principles and 0D-3D touch sensors.

Fujitsu PalmSecure Palm Vein Recognition Principle

Technical overview of Fujitsu PSD-C86 palm vein recognition terminal: non-contact liveness authentication, split sensor configuration, and high-precision biometric performance.

Face Recognition on Raspberry Pi Using OpenCV

Build a Raspberry Pi face recognition system with OpenCV: trainer and real-time recognizer using Haar cascade detection, LBPH training, and YML model storage.

Face vs Fingerprint Recognition: Security, Pros and Risks

Comparison of face recognition and fingerprint recognition: explains biometric principles, security trade-offs, advantages, risks, and implementation considerations for deployment.

Fixing Touchscreen Ghost Touches and Intermittent Response

Troubleshoot touchscreen leakage and ghost touches: clean, recalibrate, check connectors, update software, or replace hardware. Tips for repair and causes.

Why Capacitive Touchscreens Don’t Work with Gloves

Overview of resistive touchscreen vs capacitive touchscreen operation, stylus input, why nonconductive gloves fail, and water effects on touch and fingerprint sensors.

Haptic UX: Designing Touch Feedback

Guide to haptic feedback and Haptic UX design: principles, construction methods, pattern tuning, testing, and best practices for purposeful tactile interactions.

Fingerprint Recognition: Types and Principles

Overview of fingerprint recognition: feature extraction, enrollment/verification, template use, and sensor technologies — optical, capacitive, and ultrasonic.