The slide switch is a small and convenient way to turn parts of your circuit on and off. Unlike a button, which is only "on" when you press it, this Bit uses uses a sturdy plastic lever that stays in place after you slide. With the slide switch "off" stays "off" and "on" stays "on"

Click here for more info on the i1 slide switch Bit.

The toggle switch is a sturdy on/off switch that you can use to activate your creations with a nice, solid click.

Click here for more info on the i2 toggle switch Bit.

Press the button on the buttonBit to turn something on and release it to turn it off.

Click here for more info on the i3 button Bit.

Slide this potentiometer ("pot" or variable resistor) back and forth to control your circuit. As you slide it to the right more signal goes to the Bits that follow, brightening lights, speeding up motors, and raising the volume on buzzers. This Bit is great when you want more than just ON or OFF control of your Bits.

Click here for more info on the i5 slide dimmer Bit.

A rotary potentiometer ("pot", or variable resistor). Twist the dimmer Bit back and forth to control your circuit. As you twist the dimmer clockwise, more signal goes to the Bits that follow, brightening lights, speeding up motors, or raising the volume on buzzers.

Click here for more info on the i6 dimmer Bit.

This littleBit has an IR reader built into it, that sends a momentary 5 volt signal through it when an IR signal is sent through. This can be done with any TV remote or any remote that can send an IR signal.

Click here for more info on the i7 remote trigger Bit.

The proximity sensor is like a pair of eyes for your circuit, allowing it to sense objects around it and take action, without ever coming into direct physical contact.

Click here for more info on the i8 proximity sensor Bit.

The pressure sensor is a touch-activated Bit that responds to how much pressure you put on it. This bit is a good controller option for inventions that require sensing touch, contact or pressure.

Click here for more info on the i11 pressure sensor Bit.

With the temperature sensor you can use the temperature in the surrounding air to control your circuit. It's especially useful for gathering data when paired with the number Bit set to "value" mode.

Click here for more info on the i12 temperature sensor Bit.

The light sensor Bit can turn your circuit on and off by detecting the brightness or darkness of the environment they are in. Control your circuit's with light! The amount of light shining on the sensor will change how your circuit behaves. It's a great way to activate your circuit, and is perfect for alarms!

Click here for more info on the i13 light sensor Bit.

The bend sensor Bit 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 sensitivity.

Click here for more info on the i14 bend sensor Bit.

The pulse Bit is just as the name describes, a pulse that flips on and off constantly. The speed slider sets the rate at which the pulse bit switches on and off like an automatic switch that keeps flipping.

Click here for more info on the i16 pulse Bit.

The timeout Bit is basically a timer that can be set to let something trigger or deactivate after a set amount of time. Triggering can be done by setting the switch to off - on mode, and deactivating can be done by setting the swithc to on - off mode. Using a small screwdriver, the time for the timer can be adjusted for a plethora of different uses.

Click here for more info on the i17 timeout Bit.

The motion trigger Bit is like the sensor on an automatic door — when someone is moving nearby, it sends an "on" signal to the following Bits. It’s very sensitive and can detect a variety of motion! Try it with some LEDs to create a security light.

Click here for more info on the i18 motion trigger Bit.

The roller switch has a little lever with a wheel and activates when something presses it. It's an especially sensitive button that's perfect for detecting when your invention is touching something else. You can also flip the mode switch to make it turn off when the lever is pushed in (instead of on). Try that mode with an LED to make a fridge light.

Click here for more info on the i19 roller switch Bit.

The microphone Bit takes vocal input and can deal with it in two different ways. When the switch is set to sound, it can be attached to a speaker to output the audio it takes in like a real microphone. When the switch is set to other, the vocal input will be treated as a signal, basically like a sound sensor. If the microphone picks up any audio, a signal will be generated to pass through to other output bits like lights.

Click here for more info on the i21 microphone Bit.

The sequencer Bit is a marvelous Bit that can take an input and connect it to 8 different outputs one at a time! This is excellent for controlling LEDs or musical beats in sequential pattern. You can twist the dial in the center to decide the order the outputs will be played.

Forward will play outputs from 1-8 then repeat.

Backward will play outputs from 8-1 then repeat.

Pendulum will play outputs from 1-8, then 8-1 and then repeat.

Random will play outputs ranomly.

Click here for more info on the i22 sequencer Bit.

The threshold Bit acts as a gate for input signals to outputs. Essentially the threshold bit won't let any voltage pass through unless a certain voltage is met at the threshold bit. By twisting the knob, the limit can be set to determine what an ON voltage is to allow the circuit to be complete.

Click here for more info on the i23 threshold Bit.

The random Bit has the ability to raise some real chaos! This bit can take input signals and convert them to white noise (like radios do when you can't find the channel), or random voltages which can be set and tweaked using the pulse (i16) or microsequencer (i36) bits. These can then be output to te various synth bits (see below) to mix and make some funky beats! Or maybe even some funky light strobes!

Click here for more info on the i34 random Bit.

The keyboard lets you play melodies! It features 13 switches that make up an entire octave of notes.

Click here for more info on the i30 keyboard Bit.

The oscillator is a sound source that is capable of creating audio tones that will be used in almost every sound experiment you create with littleBits. This is the main sound source for the Synth Kit and Music Inventor Kit!

Click here for more info on the i31 oscillator Bit.

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 "brighter" (more high frequencies) or "darker" (more low frequencies.)

Click here for more info on the i32 filter Bit.

The envelope modifies the loudness contour of a sound. It takes a sound input and shapes it into something you'd hear from an acoustic musical instrument, like a piano or saxophone.

Click here for more info on the i33 envelope Bit.

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.

Click here for more info on the i35 delay Bit.

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 step is active).

Click here for more info on the i36 micro sequencer Bit.

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 speaker!

Click here for more info on the i37 mix Bit.