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embedded-systems

Producing PWM from firmware: analogWrite on the Uno R4 and the pin-based LEDC API on the ESP32

taught

Taught in

  • PWM output

    Embedded Systems and the Internet of Things

Requires

Required by

Local knowledge map

Local knowledge map

Driving a stepper motor through a driver: steps,… Controlling a DC motor's speed and direction through a… Making sound with active and passive buzzers and tone() Positioning a hobby servo with pulse width, powered from… Producing PWM from firmware: analogWrite on the Uno R4 and the… Choosing between an oscilloscope and a logic analyzer, and… Powering a DC motor from its own supply with a shared ground,… Reading a button on a digital input with the internal pull-up,… Smoothing PWM into a steady voltage with an RC low-pass filter,… Computing a PWM signal's duty cycle and average voltage,… Driving a GPIO pin as a digital output within its current… Explaining how setup() and loop() run, and the main() the Arduin… Sizing an LED's series resistor from supply, forward voltage, and… Telling a continuous signal from a two-state one, and ho…

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Solid arrows are required prerequisites; dashed are recommended or helpful. Lower rows are more foundational. Click any box to jump to that concept.