Iain Sharp, maker of the popular and addictive LushOne synth – and other kits – also has this Circuit Simulator online. The simulator is based on Paul Falstad’s simulator, however his being Java-based, will require a plugin, whereas Sharp’s version is built using HTML5. Think of these like animated Fritzing circuits, with a slew of pre-built circuits and components available for tinkering with:
To turn a switch on or off, just click on it. If you move the mouse over any component of the circuit, you will see a short description of that component and its current state in the lower right corner of the window. To modify a component, move the mouse over it, click the right mouse button (or control-click if you have a Mac) and select “Edit”. You can also access the edit function by double-clicking on a component.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.