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array-gpio

array-gpio is a low-level javascript library for Raspberry Pi using direct register access.

It maps the ARM peripheral registers in memory using /dev/mem for PWM, I2C, SPI
and /dev/gpiomem for GPIO control.

One of its features is the use of array objects for GPIO input/output control.

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- GPIO
- PWM
- I2C
- SPI

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All pin numbering used on this module are based on the RPI's board pinout diagram numbers 1~40.

Table of contents

1. Supported Raspberry Pi Devices
2. Node.js version requirement
3. Supported OS
4. Installation
5. Quick Tour
- Creating a GPIO input and output object
- Monitoring the state of a GPIO input object
- Using isOn and isOff to get the current state of a GPIO input/output object
- Monitoring multiple GPIO input objects
- Turning on and off a GPIO output with a delay
- Create a GPIO input/output array object
- Create a GPIO output pulse
6. API
- GPIO
- Input
- Output
- PWM
- I2C
- SPI

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* Model: Pi Zero & Zero W, Pi 3 Model B+, Pi 4, Compute Module 3 & 4 (Generally most of the 40-pin models)

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- Raspberry Pi OS (32 and 64-bit)
- Raspbian
- 64-bit Ubuntu 20+ (Only GPIO peripheral is supported)

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* Node.js version: 10.x, 12.x, 14.x, 16.x, 18.x (Ideally, the latest LTS version)

Installation

``console
$ npm install array-gpio
``