1 What is PWM? Pulse Width Modulation tutorial!
The standard explainer for pulse width modulation, linked whenever someone needs to dim LEDs or control motor speed from a microcontroller.
Topic
pwm
16 videos. Ranked by independent recommendations, not by views.
2 H Bridge Motor Speed Controller Tutorial
Afrotechmods explains a discrete MOSFET H-bridge motor speed controller; suggested for people moving beyond driver modules to understand the basics.
3 Electronic Basics #26: 555 Timer IC
GreatScott's 555 timer explainer, recommended to beginners who want to understand what the chip does and how simple timer and oscillator circuits are built around it.
4 Servo Control with the Raspberry Pi
A Raspberry Pi GPIO walkthrough that people follow to drive a servo with PWM pulses, also cited for basic LED wiring to the board's pins.
5 EEVblog #225 - Lab Power Supply Design Part 4 - PWM Control
Part four of Dave Jones's lab power supply series covers PWM control filtered to an analogue voltage; also cited for spotting probing artefacts on a scope.
6 Inverters, How do they work?
A short explainer of how inverters convert DC to AC, including switching and the triangular carrier used for PWM; often linked when people ask how to build one.
7 EEVblog #392 - 555 LED PWM Hack
Dave Jones builds a 555-based PWM LED dimmer, used as a worked example of timer circuits, steering diodes and duty cycle control.
8 Arduino PWM Tutorial #2 - How to Set PWM Frequency Accurately
A frequently cited explanation of changing Arduino PWM frequency with a dedicated library, the second part of a PWM tutorial series.
9 DIY Class D Audio Amplifier
GreatScott builds a class D audio amplifier with an LC output filter; liked as a project, though followers note details missing from the schematic.
10 Controlling a DC Motor with the Raspberry Pi
A beginner tutorial on driving a small DC motor from Raspberry Pi GPIO with a transistor and PWM, suggested as a basics starting point.
11 (#0033) 4-Wire Computer Fan Tutorial
Linked as an example when people struggle to run four-wire PC fans, showing how the PWM speed wire and tachometer output are connected.
12 PWM VS Potentiometer! When to use which technique?
A GreatScott comparison of PWM against a variable resistor for dimming or speed control, showing how much power a resistor wastes as heat.
13 HOW TO: control DC Motors with Arduino + L298N
A commonly cited tutorial on driving DC motors from an Arduino with an L298 bridge driver, covering the enable pins and PWM speed control.
14 Stepper Motor Control with the Raspberry Pi
A tutorial on controlling servo motors from Raspberry Pi GPIO pins, suggested as a natural next step once basic GPIO control feels comfortable.
15 Brushless Motor - How they work BLDC ESC PWM
Animated explanation of how brushless motors and ESCs work and how a PWM signal sets speed; suggested as an overview for anyone driving an ESC from a microcontroller.
16 How to Control a Ton of RGB LEDs with Arduino & TLC5940
Demonstrates using the TLC5940 multi-channel PWM driver with an Arduino to run many RGB LEDs, suggested whenever someone needs more PWM outputs.
