Libraries

The Arduino environment can be extended through the use of libraries. Libraries provide extra functionality for use in sketches. Discover how to installing libraries

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Found 8137 libraries
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lvgl
MIT
20155 Stars
3703 Forks
V9.3.0
Full-featured Graphics Library for Embedded Systems
kisvegabor
kisvegabor, embeddedt, pete-pjb
06/03/2025

Display
FastLED
MIT License
6983 Stars
1706 Forks
V3.10.1
Multi-platform library for controlling dozens of different types of LEDs along with optimized math, effect, and noise functions.
Daniel
Daniel Garcia
06/24/2025

Data Processing
ArduinoJson
MIT
6972 Stars
1145 Forks
V7.4.2
A simple and efficient JSON library for embedded C++.
Benoit
Benoit Blanchon
06/20/2025

Communication
WiFiManager
MIT License
6904 Stars
2032 Forks
V2.0.17
WiFi Configuration manager with web configuration portal for Espressif ESPx boards, by tzapu
tzapu
tablatronix
03/02/2024

Communication
IRremote
View license
4762 Stars
1792 Forks
V4.4.3
Send and receive infrared signals with multiple protocols
shirriff,
Armin Joachimsmeyer
06/29/2025

Communication
Blinker
MIT License
4594 Stars
238 Forks
V0.3.10230510
Build a easy way for your IoT project.
i3water
i3wawter
02/15/2022

Display
TFT_eSPI
View license
4263 Stars
1220 Forks
V2.5.43
TFT graphics library for Arduino processors with performance optimisation for RP2040, STM32, ESP8266 and ESP32
Bodmer
Bodmer
03/06/2024

Communication
PubSubClient
MIT
3936 Stars
1488 Forks
V2.8.0
A client library for MQTT messaging.
Nick
Nick O'Leary
05/20/2020

Communication
Blynk
MIT License
3930 Stars
1406 Forks
V1.3.2
Build a smartphone app for your project in minutes!
Volodymyr
Volodymyr Shymanskyy
09/04/2023

Display
Adafruit NeoPixel
LGPL-3.0
3245 Stars
1291 Forks
V1.15.1
Arduino library for controlling single-wire-based LED pixels and strip.
Adafruit
Adafruit
05/28/2025

Device Control
IRremoteESP8266
LGPL-2.1
3196 Stars
871 Forks
V2.8.6
Send and receive infrared signals with multiple protocols (ESP8266/ESP32)
David
6 Maintainers
07/28/2023

Communication
MFRC522
View license
2913 Stars
1475 Forks
V1.4.12
Arduino RFID Library for MFRC522 (SPI)
GithubCommunity
GithubCommunity
02/17/2025