Create · Hardware · TinkerPy Circuits

Circuits

Build electronic circuits on the screen with real-looking parts or circuit symbols, press ▶ Run and watch them work — no parts to buy, nothing to break.

What you can build

💡 LEDs & switches
🔥 Fire & night alarms
🌀 Motors & buzzers
⏱️ 555 blinkers
🔀 Logic gates
🧩 Breadboard builds

🔑

Log in to see your circuits

Your circuits are saved in your free TinkerPy account, so you can open them on any computer or phone.

Join free

All about Circuits

Your mentor’s quick guide: how it works, what to try next, and answers to common questions.

Add parts

Drag a battery, a resistor and an LED from the parts list onto the board. Tap a part to see what it does — Tinku explains it.

Join with wires

Tap a pin to start a wire, tap empty space to bend it, tap another pin to join. Wires on + turn red, on − black.

Run it

Press ▶ Run. Lights glow, motors spin and buzzers beep. Too much current? The part shows you — and nothing really breaks.

🧗 What to make next

BeginnerLED and switch · Two LEDs · Buzzer button · Motor and battery
IntermediateNight lamp · Touch lamp · Transistor switch · Relay
AdvancedFire alarm with LM358 · 555 blinker · Logic gates · Breadboard builds

🎒 What you need

💻A computer, tablet or phone with Chrome
🖱️A mouse or your finger — drag, tap and pinch to zoom
🔋Nothing to buy: batteries, sensors, LEDs and ICs are all on the screen
💾Your free TinkerPy account saves your circuits

❓ Questions students ask

Is it like a real circuit?

Yes — it works out the real volts and current in every wire, so what works here works with real parts too.

What do the two views do?

🧩 Component view shows real-looking parts, 📐 Circuit view shows the symbols from your science book. It is the same circuit — switch any time.

Can I break something?

On the screen, yes — an LED with no resistor shows it is burnt. Press Undo and add a resistor. Nothing real gets hurt.

Can I change an example?

Yes. Open it, change anything you like and tap 💾 Save — it becomes your own circuit in My Circuits.

🤖 Ready for real hardware?

Projects run TinkerPy on your board — real lights, motors and sensors.

Open Projects →

Circuits

⭐ First circuits 13 examples

🔘 Switches 8 examples

💡 Lights & colours 9 examples

🌀 Motors & sound 5 examples

🔋 Power 10 examples

📡 Sensor modules 26 examples

🌡️ Sensors + transistor 8 examples

🧠 Smart sensors (LM358) 13 examples

⚡ Transistors & MOSFET 7 examples

🔁 Relays 5 examples

⏱️ 555 timer 10 examples

🔀 Logic gates 10 examples

📏 Measure & test 9 examples