Courses from 1000+ universities
AI got cheap enough that Duolingo’s most expensive plan may not survive it. I read the earnings call transcript and opened the app to see what is actually changing for learners.
600 Free Google Certifications
Artificial Intelligence
Data Science
Cybersecurity
L'Italiano nel mondo
Introduction to HTML5
Umano Digitale
Organize and share your learning with Class Central Lists.
View our Lists Showcase
Compares USB generations and connectors while explaining how USB-C Power Delivery is implemented, negotiated, and tested.
An overview of how equalization, channel loss, jitter, and signaling schemes shape high-speed links from PCIe to Ethernet and MIPI.
Learn Fusion 360 fundamentals by designing a board enclosure, applying parametric modeling tools, and preparing the result for 3D printing.
Design and build a custom Arduino Shield board in EasyEDA, from schematic and PCB layout through manufacturing, assembly, and testing.
Practical guidance for designing complex FPGA boards, from organizing multi-bank schematics and optimizing power to fanout, layout, length matching, prototyping, and reducing complexity.
Design and troubleshoot buck regulators through control schemes, component selection, signal probing, stability, transient response, and multiphase operation.
Design and build a custom ESP32 board in EasyEDA, from schematic and PCB layout through manufacturing and programming.
Learn how signal reflections arise on electrically long PCB interconnects, change measured voltages, and how source termination can reduce them.
Design and simulate a compact inverted-F coplanar PCB antenna in MATLAB, from scripted geometry through electromagnetic analysis and Gerber export.
See how audio filters, compressors, limiters, and noise-cancellation techniques shape signals and improve sound quality.
Learn to probe DDR4 memory signals, identify read/write cycles, measure latency and bursts, and run and interpret automated compliance tests.
An introductory explanation of how S-parameter models are created, stored in Touchstone files, and applied to high-speed PCB simulations.
Set up a Creality Ender 3 V2, calibrate it, make your first print, and troubleshoot common 3D-printing problems.
Explore when PCB power planes are unnecessary, how stackups shape return paths, and how layout choices affect measured noise and electromagnetic emissions.
Visualize signal losses, reflections, return currents, and stitching-via effects in PCB via transitions through electromagnetic simulation.
Get personalized course recommendations, track subjects and courses with reminders, and more.