A list of the 20 libraries in the architecture nrf52.

Adafruit Arcada GifDecoder This is a library to display animated GIFs on Adafruit Arcada boards
Adafruit LittlevGL Glue Library Simplifies use of LittlevGL library with Adafruit displays.
Adafruit Protomatter A library for Adafruit RGB LED matrices.
Adafruit SleepyDog Library Arduino library to use the watchdog timer for system reset and low power sleep.
Arduino Low Power Power save primitives features for SAMD and nRF52 32bit boards
Arduino_ScienceJournal The Arduino Science Journal firmware for the Physics Lab kit and the Arduino Nano 33 BLE Sense.
BLE-MIDI BLE-MIDI I/Os for Arduino
BSEC Software Library Bosch Sensortec Environmental Cluster (BSEC) Software library
Codec2 The Codec2 library is a proof-of-concept for running the Codec2 audio codec on an Arduino-compatible Adafruit Feather nRF52 Bluefruit LE board.
LoRa Node LoRa Node library for Arduino LoRa Node Shield.
MMA8653 Allows reading the MMA8653 accelerometer.
nRF52_OLED An I2C/SPI display driver for SSD1306/SH1106 oled displays
NRF52_MBED_TimerInterrupt This library enables you to use Interrupt from Hardware Timers on an NRF52-based board using mbed-RTOS such as Nano-33-BLE.
NRF52_TimerInterrupt This library enables you to use Interrupt from Hardware Timers on an nRF52-based board
nrf_rng True non-deterministic random numbers for nRF5 series chips. MIT License.
Servo Allows Arduino boards to control a variety of servo motors.
SPIMemory SPI Memory library for Arduino. (Formerly SPIFlash)
SX126x-Arduino Arduino library to use Semtech SX126x LoRa chips and modules to communicate
Taskrunner Allows arduino to run scheduler which can run functions at specific frequency
Thermal Printer Library Bluetooth Low Energy Thermal Printer Library