Calculate component values for Op Amp, 555, RC Filter, and Resistor Divider circuits. Decode resistor and capacitor codes. Compute power, resistance, current, and voltage using Ohm's Law and Power Calculators.
Solve visual puzzles by folding and punching . Predict hole placements after folding. Progress through 1,885 levels with increasing difficulty. Improve spatial reasoning, short-term memory, and logic skills.
Tracks current speed and speed limits using -based road sign detection and OpenStreetMap data. Displays speed warnings in real time. Alerts users to zone 30, inner-city, and implicit speed limits. Shows speed and at a glance.
Build and simulate linear AC and DC circuits by dragging and rotating components. Calculate steady-state voltages and currents. View real-time DC current flow and review results with detailed analysis. Export schematics and solution data.
Calculate component values for desired corner frequency, resistance, capacitance, or inductance. Find combinations of resistors, capacitors, and inductors. View detailed calculations and formulas. Export results. Remove ads with PRO version.
Design and track personalized with . Create routines with timed intervals, reps, or AMRAP blocks. Sync with Apple Watch for real-time guidance. Use text-to-speech and audio cues for motivation. Log and view progress metrics.
Learn about resistors and resistance with interactive simulations. Configure up to eight component sections. Measure voltages across resistors and current through series and parallel circuits. Solve electrical circuits.