Every circuit starts with power. It uses a 9 volt battery to provide the electricity that makes your Bits spin, buzz, blink, and shine. Real-World Analogies. Cellphone Charger How It Works. The power Bit converts the 9 volts of...

The USB power may be the smallest in the series, but it's big enough to send juice to all your creations. Connect a USB cable (included) to your computer or phone charger to start the power flowing. Try it with an LED to make the...

The bend sensor turns on as you flex the long strip. To send signal to your output Bits, bend the strip down, towards the Bit's feet. But make sure not to crease it - that could damage your Bit! Try it with a bargraph to test its...

You know what a button is! It’s a classic: big, round, and springy. Push to turn your creation on, and release to turn it off. Snap a buzzer in place after your button to sound out signals in morse code! Real-World Analogies Video Game...

The delay Bit takes incoming audio and repeats it, like an echo. Delays can be long and spacey, like shouting into the Grand Canyon, or loud and crazy. How It Works The delay has 2 knobs: "time," which sets the delay length...

Twist this dimmer back and forth to control your circuit. As you twist the knob clockwise, more signal goes to the Bits that follow, brightening lights, speeding up motors, or raising the volume on buzzers. Real-World Analogies Household...

How It Works This envelope has 2 controls: "attack," which is how long it takes to ramp up to maximum volume, and "decay," which is how long it takes to go down to silence again. You can use its third bitSnap to...

The filter has the most effect on the sound’s character or "timbre." It affects the timbre by changing the relative volume of certain frequencies in the sound. Use it with other synth Bits to give the impression that a sound is...

How It Works. The keyboard has 2 modes: "press" (which only produces output when you press a switch) and "hold" (which will hold the last note you played). It also features an octave control which changes the playable...

The micro sequencer sends out voltages based on the position of each of the 4 "step" knobs. Connect it to an oscillator and it will step through the "sequence" consecutively to make a melody (the LEDs tell you which...

You can use the microphone Bit like a small megaphone, or even to turn sounds into light or motion! This Bit translates sounds into a language that littleBits circuits can understand. How It Works The microphone Bit takes sound from its...

The littleBits mix Bit allows you to combine 2 inputs and send them to a single output. It also has a volume control for each of its inputs -- that's where the 'mixing' comes in. Use it to play 2 oscillators on a single...