A list of the 26 libraries that are licensed with the Unlicense license.

AD9850SPI Arduino SPI library for AD9850
ArdTap A library to manage an Arduino board from a mobile in a couple of minutes. No coding, only configuration.
AT24Cxx Library for Atmel's AT24Cxx Series EEPROMs.
BigCrystal A library that displays double height characters on LCD displays.
Buffered Streams Implementation of Arduino's Stream class which use internal ring buffers to emulate a pair of connected Streams or a Loopback Stream.
controlKeyboard A library for checking keyboard events like whether a key is pressed or released.
CustomJWT A library to make it easy to encode and decode JWT tokens on an Arduino.
DS3231 Arduino library for the DS3231 real-time clock (RTC)
esp32FOTA A simple library for firmware OTA updates
FDC2214 TI FDC2214 capacitative sensor library
Freenove VK16K33 Lib Arduino library for Freenove VK16K33 Lib.
LED Dithering Adjustable LED brightness on every IO pin with software-controlled blinking
MFRC522 Arduino RFID Library for MFRC522 (SPI)
MFRC522-spi-i2c-uart-async Arduino RFID Library for MFRC522 (SPI, I2C and UART) with asynchroneous callbacks
NetEEPROM A library that stores and retrieves network configuration from EEPROM.
Norman Mathematically simulate natural cycles of daylight, temperature, and humidity for remote locations using minimal data sets.
RAKwireless ADS7830 library RAKWireless library for the RAK16001 Sensor Modules
RAKwireless MQx library RAKWireless library for the MQx Gas Sensor Modules
RfidDb A library that stores 32 bit identifiers and associated names to EEPROM which can be used to as a basis for RFID access control applications.
RTC Library for I2C based RTCs (DS1307, DS3231, PCF8563).
TactileSwitch class for tactile switch
TwiLiquidCrytal by Arnakazim A library to interface an HD44780 based LCD via I2C (or TWI in Arduino terms).
uCDB API for querying Constant DataBase file store.
VNCL4020C-Arduino Library to use Vishay VNCL4020C PPG sensor
Yet Another Arduino Debounce Library An asynchronous Arduino Library for debouncing
Yet Another Arduino Wiegand Library An Arduino Library to receive data from Wiegand card readers.