Ideal for:
Not suitable for:
Final technical note: EveryCircuit’s source code (proprietary) uses a sparse matrix solver with pivoting. The node voltage update equation is:
[ \mathbfG \cdot \mathbfv(t+\Delta t) = \mathbfi(t) + \mathbfC \cdot \frac\mathbfv(t)\Delta t ] everycircuit manual
where ( \mathbfG ) is conductance matrix, ( \mathbfC ) is capacitance matrix. It’s a compact but powerful engine – master its quirks, and you have a real-time oscilloscope in your pocket.
No official, comprehensive user manual exists for EveryCircuit, as users typically rely on in-app interactive tutorials and community-created guides to learn the simulator. Basic operations like component placement, wiring, and parameter adjustments via the wrench icon are covered in community-shared instructional circuits. Explore the interactive guide at EveryCircuit. Getting Started - EveryCircuit
The developers provide a text-based reference guide on their website. It acts as the de facto manual. Topics include: Ideal for:
Location: Visit everycircuit.com → “Help” in the top navigation → “User guide.”
Direct link pattern: https://everycircuit.com/help
Why use this over LTSpice or Multisim?
Verdict: Use EveryCircuit for rapid prototyping and education. Use LTSpice for final board-level simulation. Not suitable for:
AND, OR, NOT, NAND, NOR, XOR. These are ideal for teaching binary logic before moving to VHDL or Verilog.
Even with a perfect EveryCircuit manual, users encounter issues. Here is the diagnostic checklist.
| Symptom | Likely Cause | Solution | | :--- | :--- | :--- | | Dots don't move (Static) | Simulation is paused or no ground. | Press Play. Add a Ground symbol. | | LED stays off (even with battery) | Polarity reversed OR current too low. | Flip the LED (long leg to positive). Lower the resistor value. | | Voltage source is red/error | Short circuit. | Two wires connected directly across a battery with no load. Insert a resistor. | | Transistor won't switch | Base resistor too large. | Lower the base resistor value to increase base current. | | Oscilloscope is flat line | Wrong node selected. | Delete the trace. Drag a wire from a changing node (e.g., capacitor plate). | | App crashes on iPad | Too many components. | Reduce component count below 100. Use the web version for heavy circuits. |