Pico: drive DC motors with the L298N
Wire a Pico to an L298N motor driver, drive one or two DC motors with PWM speed control in MicroPython, and get direction control for free. The start of every wheeled robot.
Tag
#pwm
7 tutorials
ESP32: oscilloscope basics, what those waveforms actually mean
Read a scope like you read a multimeter. Volts per div, time per div, AC vs DC coupling, what bandwidth actually buys you, and how to measure PWM duty cycle.
Pico: PWM in depth with MicroPython, frequencies and duty cycles
Use the Pico's 8 PWM slices from MicroPython to drive servos, dim LEDs, generate tones, and synthesize analog output with a low-pass filter.
ESP32: PWM on every pin with the LEDC peripheral
Use the ESP32's LEDC hardware to generate PWM on any GPIO. The right way to dim LEDs, drive servos, and control motor speed.
ESP32: drive a hobby servo with LEDC
Wire a hobby servo to an ESP32 using the LEDC peripheral. The right way to control an SG90 or MG996R without the Servo.h library.
ESP32: drive a TLC5940 16-channel PWM LED driver
When the ESP32's LEDC peripheral is not enough, the TLC5940 adds 16 channels of 12-bit PWM over SPI. The right pick for big LED projects.
Pico: drive a servo motor with MicroPython
Control a hobby servo from a Pico using PWM and MicroPython. Includes the library code I use in every Pico servo project.