node-red-contrib-iiot-rpi-gpio v1.0.26

node-red-contrib-iiot-rpi-gpio

A Node-Red node for Raspberry Pi gpio

Installation

Install with Node-Red Palette Manager or npm command:

cd ~/.node-red
npm install node-red-contrib-iiot-rpi-gpio

Nodes

• gpio-in: Reads GPIO input.
• gpio-out: Sets GPIO output.
• gpio-pwm: Generate pwm on GPIO output.
• gpio-cnt: Counts GPIO input pulse.
• gpio-enc: Counts rotary encoder pulse.
• gpio-kbd: Reads 4x4 keypad.

Usage

• This node works on Raspberry Pi with 32bit or 64bit OS.
• No additional library needed.
• For open inputs, select pull down/up resistors.
• Max. GPIO input voltage is +3.3V.
• Max. GPIO output current is 16mA.
• Check with raspi-config for alternate functions on GPIO.
• For more accurate pwm and servo use PCA9685 node.

Connecting KY-040 rotary encoder

Connecting 4x4 keypad

GPIO Mapping

CHANGELOG