Lab Interactive
GPIO HIGH and LOW
See how a digital ESP32 output changes between 0V and 3.3V and controls an LED.
Open lab Interactive labs
Electronics principles built for screen capture
Visual models for embedded systems videos, articles, and quick concept checks.
Lab Interactive
Current Through a Resistor
Explore Ohm's law by changing voltage and resistance while current flow is animated.
Open lab Lab Interactive
Pull-up and Pull-down Resistors
Visualize why a digital input needs a defined default voltage and how button logic changes.
Open lab Lab Interactive
PWM Signal
Change duty cycle and frequency while watching the waveform and LED brightness respond.
Open lab Lab Interactive
ADC and Potentiometer
Move a virtual potentiometer and watch input voltage, ADC value, PWM mapping, and LED brightness.
Open lab Lab Interactive
LDR Voltage Divider
Simulate light level, divider voltage, ADC threshold, and automatic LED behavior.
Open lab