| ArduinoBearSSL | Port of BearSSL to Arduino. |
| ArduinoBLE | Enables BLE connectivity on the Arduino MKR WiFi 1010, Arduino UNO WiFi Rev.2, Arduino Nano 33 IoT, and Arduino Nano 33 BLE. |
| ArduinoCloudThing | Easly connect your Arduino/Genuino board to the Arduino Cloud |
| ArduinoDMX | Control DMX lights with your Arduino. |
| ArduinoECCX08 | Arduino Library for the Atmel/Microchip ECC508 and ECC608 crypto chips |
| ArduinoGraphics | Core graphics library for Arduino. |
| ArduinoHttpClient | [EXPERIMENTAL] Easily interact with web servers from Arduino, using HTTP and WebSocket's. |
| ArduinoIoTCloud | This library allows to connect to the Arduino IoT Cloud service. |
| ArduinoIoTCloudBearSSL | Port of BearSSL to Arduino. |
| Arduino Low Power | Power save primitives features for SAMD and nRF52 32bit boards |
| ArduinoModbus | Use Modbus equipment with your Arduino. |
| ArduinoMqttClient | [BETA] Allows you to send and receive MQTT messages using Arduino. |
| ArduinoRS485 | Enables sending and receiving data using the RS485 standard with RS485 shields, like the MKR 485 Shield. |
| Arduino SigFox for MKRFox1200 | Helper library for MKRFox1200 board and ATAB8520E Sigfox module |
| ArduinoSound | [EXPERIMENTAL] A simple way to play and analyze audio data using Arduino. |
| Arduino Uno WiFi Dev Ed Library | This library allows users to use network features like rest and mqtt. Includes some tools for the ESP8266. |
| Arduino_APDS9960 | A library for the APDS9960 sensor |
| Arduino_ConnectionHandler | Arduino Library for network connection management (WiFi, GSM, [Ethernet]) |
| Arduino_DebugUtils | Debugging module with different debug levels, timestamps and printf-style output. |
| Arduino_HTS221 | Allows you to read the temperature and humidity sensors of your Nano 33 BLE Sense. |
| Arduino_JSON | [BETA] Process JSON in your Arduino sketches. |
| Arduino_LPS22HB | Allows you to read the pressure sensor of your Nano 33 BLE Sense. |
| Arduino_LSM6DS3 | Allows you to read the accelerometer and gyroscope values from the LSM6DS3 IMU on your Arduino Nano 33 IoT or Arduino Uno WiFi Rev2 boards. |
| Arduino_LSM9DS1 | Allows you to read the accelerometer, magnetometer and gyroscope values from the LSM9DS1 IMU on your Arduino Nano 33 BLE Sense. |
| Arduino_MKRENV | Allows you to read the temperature, humidity, pressure, light and UV sensors of your MKR ENV shield. |
| Arduino_MKRGPS | Allows you to read the location from the GPS on your MKR GPS shield. |
| Arduino_MKRRGB | Allows you to draw on your MKR RGB shield. |
| Arduino_MKRTHERM | Allows you to read the temperature sensors connected to your MKR THERM shield. |
| Arduino_OAuth | [BETA] OAuth 1.0 client library for Arduino. |
| Audio | Allows playing audio files from an SD card. For Arduino DUE only. |
| AudioFrequencyMeter | Get the fundamental pitch of an audio signal |
| AudioZero | Allows playing audio files from an SD card. For Arduino Zero and MKR1000 only. |
| BNO055 | Allows to use the IMU MKR Shield |
| Braccio | Allows to move each Braccio parts using simple calls. |
| Bridge | Enables the communication between the Linux processor and the microcontroller. For Arduino/Genuino Yún, Yún Shield and TRE only. |
| Ciao | Enables communication between microcontroller and MIPS cpu. Natively support network communications, terminal (linux) and file access. |
| CTC GO CORE | All in one library containing examples from lessons and projects for CTC GO! Core Module |
| Esplora | Grants easy access to the various sensors and actuators of the Esplora. For Arduino Esplora only. |
| Ethernet | Enables network connection (local and Internet) using the Arduino Ethernet Board or Shield. |
| GSM | Enables GSM/GRPS network connection using the Arduino GSM Shield. |
| Keyboard | Allows an Arduino/Genuino board with USB capabilites to act as a Keyboard. |
| LiquidCrystal | Allows communication with alphanumerical liquid crystal displays (LCDs). |
| Madgwick | Helpers for MadgwickAHRS algorithm |
| MIDIUSB | Allows an Arduino board with USB capabilites to act as a MIDI instrument over USB. |
| MKRMotorCarrier | Allows to use the MKR Motor Carrier |
| MKRGSM | Enables GSM/GRPS network connection using the Arduino MKR GSM 1400 board. |
| MKRIMU | Allows you to read the acceleration, gyroscope, magnetic field and euler angles from the IMU on your MKR IMU shield. |
| MKRNB | Enables NB/GRPS network connection using the Arduino MKR NB 1500 board. |
| MKRWAN | Support library for MKR WAN 1300 |
| Mouse | Allows an Arduino/Genuino board with USB capabilites to act as a Mouse. |
| NTPClient | An NTPClient to connect to a time server |
| PhysicsLabFirmware | Firmware for the Physics Lab kit. |
| Robot Control | Enables easy access to the controls of the Arduino Robot Control board. For Arduino Robot only. |
| Robot IR Remote | Allows controlling the Arduino Robot via an IR remote control. For Arduino Robot only. |
| Robot Motor | Enables easy access to the motors of the Arduino Robot Motor board. For Arduino Robot only. |
| RTCZero | Allows to use the RTC functionalities. For Arduino Zero, MKRZero and MKR1000 only. |
| Scheduler | Allows multiple tasks to run at the same time, without interrupting each other. For Arduino sam and samd architectures only (Due, Zero...). |
| SD | Enables reading and writing on SD cards. |
| Servo | Allows Arduino/Genuino boards to control a variety of servo motors. |
| SpacebrewYun | Enables the communication between interactive objects using WebSockets. For Arduino Yún only. |
| Stepper | Allows Arduino boards to control a variety of stepper motors. |
| Temboo | This library enables calls to Temboo, a platform that connects Arduino/Genuino boards to 100+ APIs, databases, code utilities and more. |
| TFT | Allows drawing text, images, and shapes on the Arduino TFT graphical display. |
| USBHost | Allows the communication with USB peripherals like mice, keyboards, and thumbdrives. |
| WiFi | Enables network connection (local and Internet) using the Arduino WiFi shield. |
| WiFiNINA | Enables network connection (local and Internet) with the Arduino MKR WiFi 1010, Arduino MKR VIDOR 4000 and Arduino UNO WiFi Rev.2. |
| WiFi101 | Network driver for ATMEL WINC1500 module (used on Arduino/Genuino Wifi Shield 101 and MKR1000 boards) |
| WiFi101OTA | Update sketches on your board over WiFi |