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 7988 libraries
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lvgl
MIT
19693 Stars
3635 Forks
V9.2.2
Full-featured Graphics Library for Embedded Systems
kisvegabor, embeddedt, pete-pjb
10/30/2024
Data Processing
ArduinoJson
MIT
6932 Stars
1144 Forks
V7.4.1
A simple and efficient JSON library for embedded C++.
Benoit Blanchon
04/11/2025
Display
FastLED
MIT License
6896 Stars
1700 Forks
V3.9.17
Multi-platform library for controlling dozens of different types of LEDs along with optimized math, effect, and noise functions.
Daniel Garcia
05/29/2025
Communication
WiFiManager
MIT License
6859 Stars
2023 Forks
V2.0.17
WiFi Configuration manager with web configuration portal for Espressif ESPx boards, by tzapu
tablatronix
03/02/2024
Communication
IRremote
License
4727 Stars
1790 Forks
V4.4.1
Send and receive infrared signals with multiple protocols
Armin Joachimsmeyer
05/25/2025
Communication
Blinker
MIT License
4506 Stars
237 Forks
V0.3.10230510
Build a easy way for your IoT project.
i3wawter
02/15/2022
Display
TFT_eSPI
License
4172 Stars
1211 Forks
V2.5.43
TFT graphics library for Arduino processors with performance optimisation for RP2040, STM32, ESP8266 and ESP32
Bodmer
03/06/2024
Communication
Blynk
MIT License
3926 Stars
1405 Forks
V1.3.2
Build a smartphone app for your project in minutes!
Volodymyr Shymanskyy
09/04/2023
Communication
PubSubClient
MIT
3923 Stars
1483 Forks
V2.8.0
A client library for MQTT messaging.
Nick O'Leary
05/20/2020
Display
Adafruit NeoPixel
LGPL-3.0
3231 Stars
1293 Forks
V1.14.0
Arduino library for controlling single-wire-based LED pixels and strip.
Adafruit
05/28/2025
Device Control
IRremoteESP8266
LGPL-2.1
3153 Stars
859 Forks
V2.8.6
Send and receive infrared signals with multiple protocols (ESP8266/ESP32)
6 Maintainers
07/28/2023
Communication
MFRC522
Unlicense
2893 Stars
1477 Forks
V1.4.12
Arduino RFID Library for MFRC522 (SPI)
GithubCommunity
02/17/2025