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Bitopedia:

Everything you want to know about each Bit and how it functions within a circuit.

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Kits
Bit Basics
Basics
accelerometer
INPUT
bargraph
OUTPUT
bend sensor
INPUT
Bluetooth Low Energy (BLE)
WIRE
branch
WIRE
bright LED
OUTPUT
button
INPUT
buzzer
OUTPUT
codeBit
WIRE
CV
WIRE
DC motor
OUTPUT
DC motor (tethered)
OUTPUT
delay
INPUT
dimmer
INPUT
AND
WIRE
double OR
WIRE
envelope
INPUT
fan
OUTPUT
filter
INPUT
fork
WIRE
w10
inverter
WIRE
IR LED
OUTPUT
IR transmitter
OUTPUT
keyboard
INPUT
latch
WIRE
LED matrix
OUTPUT
light sensor
INPUT
light wire
OUTPUT
power
POWER
long LED
OUTPUT
Makey Makey
WIRE
micro:bit Adapter
WIRE
microphone
INPUT
micro sequencer
INPUT
MIDI
WIRE
mix
INPUT
motion trigger
INPUT
MP3 player
INPUT
NAND
WIRE
NOR
WIRE
number
OUTPUT
oscillator
INPUT
perf
WIRE
Power (bit + cable)
POWER
pressure sensor
INPUT
proto
WIRE
proximity sensor
INPUT
pulse
INPUT
random
INPUT
remote trigger
INPUT
RGB LED
OUTPUT
roller switch
INPUT
round LED matrix
OUTPUT
sequencer
INPUT
servo
OUTPUT
Servo o11
OUTPUT
slide dimmer
INPUT
slide switch
INPUT
sound trigger
INPUT
speaker
OUTPUT
split
WIRE
synth speaker
OUTPUT
temperature sensor
INPUT
threshold
INPUT
timeout
INPUT
toggle switch
INPUT
USB I/O
WIRE
USB power
POWER
UV LED
OUTPUT
vibration motor
OUTPUT
wire
WIRE
wireless receiver (5 channels)
WIRE
wireless transmitter (5 channels)
WIRE
XOR
WIRE
×

1 of 5

sound trigger
Found In
Invention Kit, Makerspace Kit
INPUT
Meet the sound trigger Bit
How the sound trigger Bit works
The sound trigger has a microphone that measures how much noise is around it. When the noise goes above a certain level, the sound trigger will send out an on or 5 volt signal to the following Bits in the circuit. Use the adjustment slider to set the sensitivity (how much noise is needed to trigger your Bit).
Geek Speak: the sound trigger Bit
This i20 sound trigger bit uses a microphone to detect audio. The audio signal from the microphone is first amplified to increase the sensitivity of the module. Next, the signal is passed through a circuit that behaves similarly to our timeout module: when the peaks from the microphone are higher than the detection threshold, the output is set high. Once the microphone signal drops below the threshold, the output returns low again.