Signal Input/Output
Official libraries
Arduino_APA102 :
Control rgb LEDs APA102ArduinoMotorCarrier :
Allows use of the Arduino Motor CarrierAudio :
Allows playing audio files from an SD card. For Arduino DUE only.AudioZero :
Allows playing audio files from an SD card. For Arduino Zero and MKR1000 only.MKRMotorCarrier :
Allows to use the MKR Motor Carrier
Contributed by the community
AceButton :
An adjustable, compact, event-driven button library that handles debouncing and dispatches events to a user-defined event handler.AceSegment :
Library for rendering seven segment LED modules using the TM1637, TM1638, MAX7219, HT16K33, or 74HC595 controller chips.AceSegmentWriter :
Write decimal numbers, hex numbers, temperature, clock digits, characters, and strings to the seven segment LED modules supported by the AceSegment library.ACS712 :
ACS712 library for Arduino.AD5144A :
Arduino Library for AD5144A 4 Channel digital potentiometerad5243 :
Arduino library to control the AD5243 family of digital potentiometers / rheostatsAD524X :
Arduino Library for AD524XAD57X4R :
Provides an SPI based interface to the AD5724R, AD5734R, and the AD5754R Quad 12-/14-/16-Bit Unipolar/Bipolar Voltage Output DACs.AD7390 DAC library :
Arduino library for the AD7390 digital to analog converter (DAC)AD985X :
Arduino library for AD9850 and AD9851 function generators. Supports both hardware SPI as software SPI.Adafruit ADS1X15 :
Arduino library for ADS1015/1115 ADCs.Adafruit AM radio library :
Arduino library for AM radio on samd21 microcontrollerAdafruit AW9523 :
Arduino library for the AW9523 GPIO expanders in the Adafruit shopAdafruit BD3491FS :
Arduino library for the BD3491FS Sound Processor in the Adafruit shopAdafruit BusIO :
This is a library for abstracting away UART, I2C and SPI interfacingAdafruit composite video Library :
Arduino library for composite video on samd21 microcontrollerAdafruit Keypad :
Diode-multiplexed keypad support for ArduinoAdafruit MCP23008 library :
Arduino Library for the MCP23008 (and '9) I2C I/O expanderAdafruit MCP23017 Arduino Library :
Arduino Library for MCP23XXX I2C and SPI GPIO port expandersAdafruit MCP3008 :
MCP3008 8-Channel 10-Bit ADCAdafruit MCP4725 :
MCP4725 12-bit I2C DACAdafruit Zero DMA Library :
DMA helper/wrapped for ATSAMD21 such as Arduino Zero & Feather M0Adafruit Zero FFT Library :
FFT library for Arduino Zero / Adafruit Feather M0 (SAMD21 processor).Adafruit Zero I2S Library :
I2S audio playback library for the Arduino Zero / Adafruit M0 (SAMD21 processor) and M4 (SAMD51) boardsAdafruit Zero PDM Library :
PDM Microphone Input library for Arduino Zero / Adafruit Feather M0 (SAMD21 processor).AdagioPro :
Controls Adagio RGB Poollights over RS-485Adaino :
An Analog Data Acquisition library for Arduino and IoT.ADC_SAmpler :
Enable analog sequencer with timer on SAM3x DUEADC_SEQR :
Enable analog sequencer on SAM3x DUEAdler :
"Arduino Library for calculating Adler-32 checksum.ADS1110 :
ADS1110 Driver (16-BIT ADC with Onboard Reference, PGA and I2C Interface)ADS1115_WE :
A library for the ADS1115 ADCADS1118 library :
Arduino library for TI ADS1118 (16-Bit Analog-to-Digital Converter with Internal Reference and Temperature Sensor).ADS1219 :
ADS1219 24 bit ADCAmigaMouseJoyEmu :
Library to emulate Amiga Mouse or joystickAnalog-Digital Multiplexers :
Arduino library for controlling analog/digital multiplexers (A/D mux).analogComp :
Set and manage the integrated analog comparatorAnalogIO-Arduino :
This library allows to read a value from an analog input like an potentiometer, or from a digital input like an encoder. Moreover, allows to write it on digital output, exactly on PWM pin.AnalogKeypad :
Arduino Library for (Robotdyn) 4x4 and 4x3 AnalogKeypadAnalogMultiButton :
An Arduino library to capture button presses on multiple buttons through a single analog pin.AnalogPin :
Arduino Library for AnalogPinAnalogReadAsync :
Asynchronous version of analogRead().AnalogTouch :
AnalogTouch library for ArduinoAntiKeyRepetition :
Prevents keys(buttons) from being triggered continuously.Anyleaf :
Driver for the AnyLeaf pH, EC, and RTD sensors.ArduinoLearningKitStarter :
Library for the ArduinoLearningKitStarter (ALKS) board by RoboticsBrno with definition of pins and initialization of peripheries.ArduMax AD5241 Driver :
Driver for Analog Devices AD5241/2 and AD5280/2 digital potentiometers.ArduMax MCP41xxx Driver :
Driver for Microchip MCP41xxx/42xxx digital potentiometers and MCP43xxx/44xxx digital rheostats.ArduPID :
PID library for Arduinos with greater accuracy than the legacy Arduino PID libraryAsyncAnalog :
Arduino Library for async reading of an analog pinAudio - Adafruit Fork :
Adafruit SAMD51 port of Teensy Audio Library - Flexible, High Quality Audio ProcessingAudioShieldDTMF :
MCP4921 Audio Shield DTMF ExampleAutoAnalogAudio :
Automated analog reads and analog output (streaming) using Arduino DAC(or PWM), ADC, DMA and TimersAutoPID :
Automatic PID controlleravdweb_AnalogReadFast :
Fast analogRead 10/12 bit ADC for the Arduino Zero and UnoAxisJoystick :
The Library implements a set of methods for working with an axis joystick controller.BasicEncoder :
BasicEncoder counts pulses from one or more simple rotary encoder control knobs.Bits and Droids flight sim library :
Use serial communication to control flight sim.BlinkCode Library :
Asynchronous BlinkCode library for indicating flash fault codes.Blinkenlight :
Supercharge your status LEDs / beepersBolder Flight Systems Excitation :
Library of excitation waveforms.Bounce2 :
Debouncing library for Arduino and Wiring.btnapi :
Library for conecting buttonsBugtton :
Fast button debounce library for ATmega328P. Uses registers instead of digitalRead.Button :
Button is a tiny library to make reading buttons very simple.Button-Arduino :
This library allows to manage a button.ButtonGestures :
Use one button for up to 6 different functions using gestures!ButtonKing :
Arduino libary for improving the usage of a singe input button.ButtonSuite :
A library for using a simple mechanical push (momentary) button as a momentary button, a latching button, a counter, an enumerator, and more.CaptureTimer :
Arduino Input Capture LibraryCF Rotary Encoder :
A library for Arduino that helps interface for Rotary Encoders.CFPushButton :
A library for Arduino that helps interface for Push Buttons.Computherm RF Library :
Arduino library for Computherm Q8RF thermostat.Controlino :
A library for using direct or multiplexed input controls easily.Controller Utilities :
Contains a number of useful tools for building custom game controllers.controlVoltage :
A simple library for generating CV signals to control modular synthesizers.CurrentTransformerWithCallbacks :
Coil, Current Transformer (CT) based AC current measurements using fast ADC sampling of waveformCuteBuzzerSounds :
Simple and Cute Robot SoundsDAC7611 :
A library that makes interfacing the DAC7611p a breeze.DailyStruggleButton :
DailyStruggleButton is yet another Arduino library to debounce button (push tactile switch) and manage its events.DaisyDuino :
Arduino library for the Daisy audio platform.DDS :
Generate sinusoids on AVR-based Arduinos at varying frequencies. Requires an analog low-pass filter.DebounceEvent :
Simple push button and toggle switch debounce library that reports number of clicks and lengthDFRobot_ESP_EC_BY_GREENPONIK :
Update from DFROBOT library for ESP32 compatibilityDFRobot_ESP_PH_WITH_ADC_BY_GREENPONIK :
Update from DFROBOT library for ESP32+ADC compatibilityDFRobot_SpeechSynthesis :
Synthesize the sound you need, support Chinese, English.DFRobot_SU03T :
Speech input and output(SKU: DFR0987)digitalPinFast :
More speed for digitalPin operations.DigitalSignalsArduino :
Arduino Digital Signal libraryDimmer class for ATmega32U4 :
Easy use of 10/12 bit PWM outputs on ATmega32U4 for dimmer applications.Dimmer class for SAMD21 :
Easy use of PWM outputs on SAMD21 for dimmer applications.directADC :
Library for advanced ADC control (AVR)DmtrPots :
Potentiometer library for Arduino / Teensy.DUE_schmitt :
Enable SAM3x DUE IO Schmitt trigguerDueAdcFast :
Arduino Due ADC analogRead Fast 1Mhz with measures collect and also differential.EasyButton :
Arduino library for debouncing momentary contact switches, detect press, release, long press and sequences with event definitions and callbacks.EasyButtonAtInt01 :
Small and easy to use Arduino library for using push buttons at INT0/pin2 and / or any PinChangeInterrupt pin.<br/>Functions for long and double press detection are included.<br/><br/>Just connect buttons between ground and any pin of your Arduino - that's it<br/><br/><b>No call</b> of begin() or polling function like update() required. No blocking debouncing delay.<br/>EasyBuzzer :
EasyBuzzer LibraryEasyPin :
An easy and simple way for manage Arduino pins.eBtn :
A library to handle Buttons based on events.EButton :
A compact, simple-to-use, reliable and powerful event-driven button library, with proper debouncing and fine grained event structure.Embedded Type-C PID :
PID controller (Type-C) with a flexible API and errors handling.EmotiBit ADS1X15 :
Arduino library for ADS1015/1115 ADCs.EnableInterrupt :
Assign an interrupt to any supported pin on all Arduinos, plus ATtiny 84/85 and ATmega 644/1284.Encoder :
Counts quadrature pulses from rotary & linear position encoders.EncoderButton :
Lossless event based rotary encoder & button libraryEnergyMeter :
Arduino library to get data from energy meters in order to monitor them.ESensors :
Environmental sensors library.ESP32 AnalogWrite :
ESP32 Polyfill for analogWrite functionsESP32 ESP32S2 AnalogWrite :
ESP32 ESP32-S2 analogWrite functionsESP32AnalogRead :
Load the ESP32 ADC calibration data and use it to read from the ADC.ESP8266Audio :
Audio file and I2S sound playing routines for ESP8266, ESP32, and Raspberry Pi Pico RP2040ESPiLight :
pilight 433.92 MHz protocols library for ArduinoEspSoftwareSerial :
Implementation of the Arduino software serial for ESP8266/ESP32.EventAnalog :
Event based library for analog inputs.EventButton :
Event based button libraryEventJoystick :
Event based library for analog joysticks.ez_SIPO8_lib :
Support for multiple serial-in/paralle-out (SIPO) shift registers.ez_switch_lib :
Support for single and multiple switches for Arduino and ESP 32 microcontrollers.ezAnalogKeypad :
Analog Keypad and Analog Buttons library for Arduino, ESP32ezButton :
Button library for ArduinoezBuzzer :
Buzzer library for ArduinoezLED :
LED library for ArduinoezOutput :
Output library for ArduinoFadeLed :
Makes fading LEDs easyFastGPIO :
Faster general-purpose I/OfastIO :
Fast pin control for ATmega328.FastPID :
A PID controlled implemented using fixed-point arithmetic.FastShiftIn :
Arduino library for (AVR) optimized shiftIn - e.g. for 74HC165FastShiftOut :
Arduino library for (AVR) optimized shiftOut - e.g. 74HC595FireplaceMLX :
MobaLedLib Extension adds simulation of single fireplaceFletcher :
"Arduino Library for calculating Fletcher's checksum.FlightSimOutputs :
Library for easy handling of digital outputs on Midwest737Simulations.com Multi Output card.FlightSimSwitches :
Library for easy handling of Switches and Buttons in X-Plane with PJRC's TeensyFormulinha :
Formulinha Robot LibraryFreqCount :
FreqCount measures the frequency of a signal by counting the number of pulses during a fixed time.FreqMeasure :
FreqMeasure measures the elapsed time during each cycle of an input frequency.FrequencyDetector :
Measure the main frequency of analog captured signal connected to an Arduino and check for noise and mute.<br/>FTDebouncer :
An efficient, low footprint, fast pin debouncing library for ArduinoGAMMA :
Arduino Library for the GAMMA functionGemelon Pushbutton :
Arduino library to debounce a pushbutton.GFButton :
Library to manage buttonsGroveDriverPack :
GroveDriverPackGyverPWM :
Library for advanced PWM settings of AVRHalfStepper :
<br/>An Arduino library to enable half-stepping and single/dual phasing for step motors.HT16K33 :
Arduino Library for HT16K33 I2C 4x7segment displayHV518 :
Arduino library to control Microchip HV518HX711 :
Arduino library for HX711 loadcell amplifierHysteresis :
Hysteresis libraryHzMeter_asukiaaa :
It measures Hz from pulse input.i2c_adc_ads7828 :
Arduino library for the Texas Instruments ADS7828 12-bit, 8-channel I2C A/D converter.I2cDiscreteIoExpander :
Arduino library for the Texas Instruments PCF8575C 16-bit I2C I/O expander.I2CKeyPad :
Arduino library for 4x4 KeyPad connected to a PCF8574iBit_Arduino :
A control library for iBit Board.iKB1_Arduino :
A control library for IKB-1 Extension I/O Board.Indio :
Library for the Industruino IND.I/O productInfrared :
An object oriented library for sending, receiving, generating, and decoding IR signals on the Arduino.InfraredMLX :
Extension adds infrared features to control MobaLedLib using an infrared remote controlInputDebounce :
Simple polling input debounce Arduino library.IoT_Modules-Buttons :
Button library for easier use of buttons in projects.iotec_MAX7319 :
A library for using the MAX7319 from MAXIM Integrated.IRLremote :
Lightweight Infrared library for ArduinoIRMP :
Receive and send infrared signals.<br/>IRRemoteControl :
A lightweight library for send/receive infra-red signal.IRsmallDecoder :
Allows the reception and decoding of infrared signals from remote controls.Itty Bitty :
<br/>With the fastest possible Arduino-compatible GPIO and register manipulation...<br/>It's the biggest of hits when you need to bang bits!JC_Button :
Arduino library to debounce button switches, detect presses, releases, and long presses.jm_CPPM :
A CPPM Library for Arduino.K1200 :
Library for the Velleman K1200 watch.KeyDetector :
A library for detecting state change on analog and digital pins.KidMotorV4-Arduino :
Drive DC motor / Servo motor, I/O expander with KidMotor V4KMP_MCP23S08 :
Unified driver for the the MCP23S08 SPI expanderKrypton :
A library that makes use of Krypton ion thruster controller.LED Dithering :
Adjustable LED brightness on every IO pin with software-controlled blinkingLedBlinky :
Allows an Arduino/Genuino board to control the builtin led and external leds.LEDDriver :
PWM LED Driver with ability to brighten and dimm fluentlyLeeman Geophysical Learning Shield :
Tools for the Leeman Geophysical LLC Learning Shield.LettersKeypad :
A simple 4x3 phonetic alphabet keypad library.Lifely Agrumino Lemon :
Library for Agrumino Lemon DeviceLitSwitch :
A special library for an LED/momentary switch hardware combination.<br />Lixie :
Allows for easy writing to Lixie Digit displays!Lixie II :
Library for controlling Lixie II displays!LogansGreatButton :
An all in one, easy to use, powerful, self contained button library so you can focus on your other code! Includes Debouncing, Avoids Delays, multiclicks and allows you to decide what happens at the beginning and end of Short, Long, Hold and Shifts so you can create a intuative and responsive experience.Low level quick digital IO :
高性能引脚读写。More efficient digital IO than builtin functionsLTC1392 library :
Arduino library for the LTC1392 Micropower Temperature, Power Supply and Differential Voltage MonitorM10ADC :
ADC library for PulseRain M10 board.M10CODEC :
CODEC library for the Si3000 CODEC on PulseRain M10 board.M10DTMF :
DTMF library for PulseRain M10 board.M10ESP8266 :
library for ESP8266 shield.M10Examples :
Examples for PulseRain M10 board.M10I2C :
I2C library for PulseRain M10 board.M10JTAG :
JTAG UART library for PulseRain M10 board.M10LCD :
Library for LCD InterfaceM10PS2 :
Library for PS2 InterfaceM10PWM :
PWM library for PulseRain M10 board.M10SD :
microSD library for PulseRain M10 board.M10SerialAUX :
Auxiliary Serial port library for PulseRain M10 board.M10SevenSeg :
Library for Seven Segment DisplayM10SRAM :
SRAM (Microchip 23LC1024) library for PulseRain M10 board.MagicPot :
Arduino library for reading values easily from potentiometers.Mapf :
extended arduino map() functionMAX14661 :
Arduino library for MAX14661 16 channel I2C multiplexerMCP23008 :
Arduino library for I2C MCP23008 8 channel port expander 8 IO-linesMCP23008_I2C :
Library for MCP23008 I2C based GPIO expanders for Arduino platform supported boardsMCP23017 :
MCP23017 I2C Port expander library.MCP23017_I2C :
Library for MCP23017 I2C based GPIO expanders for Arduino platform supported boardsMCP23017_RT :
Arduino library for I2C MCP23017 16 channel port expander 16 IO-linesMCP23017_WE :
A library for the MCP23017, MCP23S17, MCP23018 and MCP23S18 port expanders.MCP23S08 :
Arduino library for SPI MCP23S08 8 channel port expander 8 IO-linesMCP23S17 :
Arduino library for SPI MCP23S17 16 channel port expander 16 IO-linesMCP3202 :
Used to interface the 12 bit ADC MCP3202 by Microchip.MCP3221 :
MCP3221 Driver (12-bit ADC with hardware I2C Interface)MCP3304 :
A simple library for working with the MCP3304 in a bit bang version. Useful for Raspberry PicoMCP3X21 :
MCP3021 & MCP3221 Arduino libraryMCP4251 :
MCP4251 Digital Pot ControlMCP48xx DAC Library :
A library to control the MCP48xx family of SPI digital to analog converters (DACs).MD_AButton :
Library for multiple switches on one analog input.MD_KeySwitch :
Library for digital switches.MD_SN76489 :
Library for SN76489 sound generator.MD_UISwitch :
Library for Uinversal User Interface Switches.MD_YM2413 :
Library for Yamaha YM2413 sound synthesizer.MicroTone :
low-flash high-performance pulse train library with attiny13miniDAC :
Library for Arduino miniDAC module by Tamojit Saha and Sandeepan Sengupta.MINMAX :
MINMAX library for Arduino.MjGrove :
MjGroveMobaLedLib :
<h3>Arduino library for driving up to 768 (49152 ESP32) LEDs, signals, sound modules or other actuators via one signal line on a model railway</h3>ModernPIDControlSS :
Modern PID Control Architecture and CPLMFC TuningMorePins :
Makes use of shift registers to create more pins, as many as needed, using only 3 Arduino PinsMorseDuino :
Arduino library for generation morse code and displaying it on LEDsMOVI Voice Dialog Shield :
This is the Arduino library for the MOVI(tm) Voice Dialog Shield.MovingAverage :
Arduino Library for averaging fixed-point numbersMovingAverageAngle :
Arduino & Mbed Library for averaging angles 0-360°MovingAverageFloat :
Arduino Library for averaging float numbersMovingAverager :
A basic moving average filter.MSGEQ7 :
Library for Musicvisualization with MSGEQ7MultiButton :
Reliable detection of single, double and long clicks.MusicBuzzer :
A Collection of musics for buzzerMusicWithoutDelay :
A library to play multiple musical notes at the same time without Delay.MyButton :
Making buttons easy and fun to work with (normal, and counting buttons)Nintendo :
Connect all your favourite Nintendo Controllers to your Arduino.Notched Shaft Encoder :
Monitor the postion and clickable button status from a Notched Shaft EncoderNPush :
NPush library for Push buttons.NRotary :
NRotary library for using rotary encoders.ObjectButton :
An Arduino library for detecting button actions.OneButton :
Arduino library for improving the usage of a singe input button.OptoDebounce :
100Hz opto debouncer.P1AM :
P1AM-100 CPU libraryPCA9505_06 Library :
Library for the 40bit PCA9505/06 I2C Port ExpanderPCA9536 :
PCA9536 Driver (4-Channel GPIO I2C Expander)PCA9634 :
Arduino library for PCA9634 I2C LED driver 8 channelPCA9634 library :
A library for the PCA9634 8-bit Fm+ I2C-bus LED driver.PCA9635 :
Arduino library for PCA9635 I2C LED driverPCA9685_RT :
Arduino library for I2C PCA9685 16 channel PWMPCF8574 :
Arduino library for PCF8574 - 8 channel I2C IO expanderPCF8575 :
Arduino library for PCF8575 - 16 channel I2C IO expanderPCF8591 :
PCF8591 library for Arduino. Supports multiple I2C WireN bus.PCF8591 library :
PCF8591, library for Arduino, ESP8266 and esp32PciManager :
This library helps you manage Pin Change Interrupts: subscribe and receive change events.PCM :
Playback of short audio samples.Pico-DMX :
DMX protocol library for the RaspberryPi PicoPicoAnalogCorrection :
Arduino library to calibrate and improve ADC measurements with the Raspberry Pi Pico.PID :
PID controllerPID_v2 :
PID controllerPin :
An easy to use Arduino library for fast and simultaneous operations on Arduino I/O pins.PinChangeInterrupt :
A simple & compact PinChangeInterrupt library for Arduino.PinExtender Library :
Library for Pin ExtentionPIO8255 :
Arduino library for using intel 8255 CMOSes.Plaquette :
An object-oriented library for creative physical computing.Plex64 :
A library for the Plex64 analog input multiplexer shield.Polymorphic Buttons :
A simple library to make multifunction buttons.PPMEncoder :
A library to encode/generate a PPM signal for controlling RC Cars, etc...pressure :
Arduino library for pressure conversionPS2Keyboard :
Use a PS/2 Keyboard for inputPulsePattern :
Library to generate repeating pulse patterns. (AVR only)PulsePosition :
Send and receive multiple high resolution PPM encoded signal streams.PulseRainUARTConsole :
Arduino Library for UART ConsolePushbutton :
Pushbutton library for ArduinoPushButton Event Modelling Library :
PushButton events modelling libraryQDEC :
High-efficiency, state-machine based quadrature decoder.QuickPID :
A fast PID controller with multiple options. Various Integral anti-windup, Proportional and Derivative control modes.r89m Buttons :
A library that makes working with buttons simple.r89m CapacitiveButton :
Handle CapacitiveButtons, powered by the CapacitiveSensor libraryr89m MPR121Button :
Handle MPR121Buttons, powered by Adafruit's MPR121 libraryr89m PushButton :
Handle PushButtons, debounced using the Bounce2 library.RadioengeLoraWAN :
Implementation of RadioengeLoraWAN AT-COMMANDS..RBD_Button :
Read and debounce buttons and switches.RCLSwitch :
Compact version of RC SwitchResponsiveAnalogRead :
Arduino library for eliminating noise in analogRead inputs without decreasing responsivenessRGB :
This library for Arduino allows you to control RGB led.RGB_LED :
A library that manage 4 legs rgb leds colour and light duration.Romans Audio FastDigitalPin Library :
Arduino lib for fast digital reads and writes.RotaryEncoder :
Use a rotary encoder with quadrature pulses as an input device.RS485 :
RS485 library for Arduino.SAMD21 Audio Player :
Simple audio player for SAMD21-based ArduinosSAMD21 turbo PWM :
Fast-PWM library for SAMD21G-based ArduinosSchmittTrigger :
A lightweight schmitt trigger for debouncing and filtering.Seeed Arduino Audio :
Flexible, High Quality Audio Processing LibrarySensor :
A simple Arduino Sensor/map wrapperSensorToButton :
An algorithm to convert analog Data into a Button.<br />SeqButton :
Sequential Button Arduino LibraryServoInput :
Read positional data from servo motors and drivers.SevenSegmentPanel :
Driver for panel on 7-segment indicatorsShiftInSlow :
Arduino library for shiftIn with build-in delay - e.g. for 74HC165ShiftOutSlow :
Arduino library for shiftOut with build-in delay - e.g. for 74HC165ShiftRegister-PWM-Library :
Makes shift register pins PWM capable.SIKTEC_MDSwitch :
Library to easily use Multi Direction Switches.SIKTEC_SPI :
A Lightweight SPI wrapper for HW SPI and Software SPISim Racing Library :
Interface with sim racing peripherals including pedals, gear shifters, and handbrakes.Simple Repository IO :
A simple IO controllerSimpleExpressions :
Make you Robots cute and noisyslight_ButtonInput :
Event based button input.slight_RotaryEncoder :
Event based rotary ecnoder input.SmartButton Library :
Asynchronous SmartButton library for handling various button events.SmoothADC :
Get ADC to return averaged values.SN76489 :
sn76489 arduino library.Sodaq_PcInt :
An Arduino library to deal with PCINT (Pin Change Interrupts)SoftPWM :
A software library to produce a 50 percent duty cycle PWM signal on arbitrary pins.<br />SoftwareSerialTX :
<h3>A SoftwareSerial implementation only for transmitting data, maximum size reduced </h3>Soundex :
"Arduino Library for calculating Soundex hash.SoundPlayer :
Allows Arduino Boards to play 8-bit sounds recorded at 40kHz sampling frequency.SparkFun AD5330 :
Libraries for the AD5330 8-bit DACSparkFun ADS1015 Arduino Library :
Library for the ADS1015 ADC to I2C converter used on the SparkFun Qwiic 12-bit ADC and Flex Glove Controller.SparkFun MiniGen :
SparkFun MiniGen library allows the user to generate sine, square, or triangle waves at up to 3MHz, and approximately 1Vp-p.SparkFun TLC5940 :
Library for the TLC5940 IC.SparkFun VKey Arduino Library :
Arduino Library for interfacing the SparkFun VKey Voltage Keypad.SpeedMeasurer :
Pito tube library for 2 BMP180 sensorsSPI-DAC7611 :
A library that interfaces with the DAC7611 using the standard SPI library.Step_CYC10_I2C :
Library for the I2C Soft Controller on Step CYC10 FPGA boardStep_CYC10_Seven_Seg_Display :
Library for the 7-segment display on Step CYC10 FPGA boardsTune :
Open loop PID autotuner using a novel s-curve inflection point test method.SUSHI-EXP-BOARD :
Arduino library for SUSHI-EXP board.Switch :
Arduino library for deglitching and debouncing switches and buttons.SX1509 IO Expander :
Arduino library and hardware files for the SparkFun SX1509 IO Expander Breakout board.Talkie :
Speech library for Arduino. Generates speech from a fixed vocabulary encoded with LPC.TalkingButton :
Transform a press button into a powerful input devicetca9544a :
Arduino library to control the TCA9544A I2C bus multiplexerTCA9548 :
Arduino Library for TCA9548 I2C multiplexer.TCA9555 :
Arduino library for I2C TCA9555 16 channel port expander - 16 IO-linesTeensy_3X_Multipurpose_Board :
Library to interface with Teensy 3.X breakout board (PCB gerber and Eagle project files included!)TeensyAudioFlashLoader :
utility to load audio samples from uSD card to external flash ram on teensy 4.1TeensyAudioLaunchCtrl :
Trigger audio samples using your usb midi controllerTeensyAudioSampler :
play pitched multi-polyphonic audio samples with teensy audio libraryTeensyVariablePlayback :
Play samples at variable pitch using Teensy Audio LibraryThrottle :
Just like Debounce but fasterTimerExtensions :
Easy access to advanced Arduino timer functions, such as precise timing, pulse generation, and input event capture.tinyESPNow :
Arduino library for tinyESPNow.tinyI2S :
Arduino library for tinyI2S.TinyWireM :
I2C library for Trinket and Gemma, adapted from BroHogan's code on Arduino PlaygroundTlc5940 :
Use the Texas Instruments TLC5940 16-channel LED DriverTM16xx LEDs and Buttons :
TM16xx library for Arduino. Supports LED and KEY modules based on TM1638 and similar chips.TN_SwitchState :
A library to manage switch state transitions.Toggle :
Arduino bounce library for deglitching and debouncing hardware, signals and data. Works with all switch types, port expander and other 8-bit data sources.Tone :
A software digital square wave tone generation library.<br />toneAC :
Replacement to the standard tone library with many advantagesToneLibrary :
This is an Arduino Library to produce a tone on any Arduino pin.Tsunami :
Library for interfacing with the Tsunami's hardware peripherals.TVout :
A library for generating PAL or NTSC video output with an AVR.vbus-arduino :
Allows arduino to read data from some vbus compatible controllers.Volume :
Gives tone functionality with 8 bit volume control with no extra partsVolume 3 :
Gives tone functionality with 10-bit volume control with no extra parts!Volume2 :
Gives tone() functionality with multiple waveforms and 8-bit volume control - with no extra parts!WeatherMeters :
Weather Meters libraryweight :
Library of weight conversion functionsWiFiWire :
Arduino library for Wire on WiFi.wm8978-esp32 :
An esp32 library for the wm8978 dac.WTV020SD16P :
Arduino library for the WTV020-SD-16P sound moduleX9C10X :
Arduino Library for X9C10X series digital potentiometer.XLR8ADC :
Arduino library to take advantage of XLR8 ADC performance.XLR8SPI :
Library to use SPI interfaces through SPI XBs.Yet Another Arduino PcInt Library :
A library to support Pin Change Interruptions (PCINT) on AVR ArduinosYK04_Module :
Library for working with a remote control sensors based on the YK04 driver.ZMotor2 Library :
Library for a board called Motor2ZMotor3Library :
Library for a board called Motor3ZzzButton :
Arduino / C++ library to manage buttonsZzzMovingAvg :
Simple Arduino / C++ library to compute moving average