onoff
GPIO access and interrupt detection with Node.js
i2c-bus
I2C serial bus access with Node.js
rpio
High performance GPIO/i2c/PWM/SPI module for Raspberry Pi, Orange Pi, Banana Pi
pigpio
Fast GPIO, PWM, servo control, state change notification, and interrupt handling on the Raspberry Pi
detect-rpi
Detects if node is currently running on a Raspberry Pi.