low.js for ESP32 API

low.js provides several modules in addition to the Node.js API modules with which the microcontroller peripherials can be interfaced.

Module Name	Description
can	Interface devices and electronics via CAN
gpio	Get or set GPIO pin values, use PWM or ADC
i2c	Interface electronics via I2C
lowsys	Methods to control low.js itself
opc-ua	Implements OPC-UA client functionality
sdcard	Methods to control SD cards
signal	Output arbitrary signals on GPIOs
spi	Interface electronics via SPI
uart	Interface electronics via UART
ws	WebSocket client and server support! Not part of low.js, but rather an external module from the npm repository, preinstalled as an example. Can be uninstalled.

For some some selected drivers to interface things, please take a a look at our examples GitHub repository.