One laboratory. No installation.
Calculate.
Experiment.
Understand.
Electronics makes more sense when you can experiment. Change a value, follow the circuit and discover why.
Open to curiosity. No account or installation needed.
Connect the load to check whether the output remains half the supply voltage.
↑ This already works. Connect the load and watch the output.
Your electronics workbench.
14 ways to turn a formula into an idea you can see.
LED resistor
Choose a resistor, calculate its dissipation and see what current will flow through your LED.
Open tool →Ohm’s law
Relate voltage, current, resistance and power. Two known values make the circuit easier to understand.
Open tool →Loaded voltage divider
See why a 2.5 V output changes when you connect a load.
Open tool →RC charging and discharging
Explore how capacitor voltage changes over time and what controls its rate of change.
Open tool →Logic gates
Toggle inputs, compare seven gates and follow each combination in its truth table.
Open tool →Binary, decimal and hexadecimal
Convert numbers exactly and build a value by toggling bits.
Open tool →PID simulator
Adjust the gains and observe the plant response, error and actuator limits.
Open tool →Gear ratio
Change tooth counts and compare speed and direction in external and internal gear pairs.
Open tool →Planar 2R robotic arm
Move two joints or choose a target: explore the two configurations and unreachable points.
Open tool →Stepper motor
Step through coil currents and compare full-step, half-step and reverse motion.
Open tool →Kirchhoff’s laws
Two meshes, three branches: check currents, voltages and conservation of energy.
Open tool →Series and parallel capacitors
Compare capacitance, voltage distribution, charge and energy for two to four capacitors.
Open tool →Resistor color code
Read four- and five-band codes, convert values to colors and compare tolerances and E-series values.
Open tool →Series and parallel resistors
Find the equivalent resistance and the voltage, current and power of each component.
Open tool →A little theory. A lot of clarity.
One shared experiment. Many explanations.
Choose by topic and level, share an exercise’s values, or embed an ad-free tool in your virtual classroom.
Predict. Change. Check.
Three activities to isolate one variable and explain what happens.
What does a load do to a divider?
Predict the output, connect a load and check the drop.
Open experiment →Is one time constant enough to reach 90%?
Change R or C and check the time to the threshold.
Open experiment →Do more steps mean more speed?
Compare resolution and rpm at the same command rate.
Open experiment →