View source for RPi.GPIO : NanoPi NEO/NEO2/Air GPIO Programming with Python

[[RPi.GPIO : NanoPi NEO/NEO2/Air GPIO Programming with Python/zh|查看中文]]

==Introduction to RPi.GPIO_NP==

For users to easily access GPIO with python FriendlyElec integrated RPi.GPIO in the FriendlyCore images for the NanoPi H3/H5.<br/>
RPi.GPIO is a famous library in python for Raspberry Pi. FriendlyElec ported it to the NanoPi H3/H5's FriendlyCore images and renamed it as RPi.GPIO_NP.<br/>
Most RPi.GPIO_NP's APIs are the same as those of RPi.GPIO and you can refer to https://pypi.python.org/pypi/RPi.GPIO for more details.<br/>

==Install RPi.GPIO_NP==
The RPi.GPIO_NP library is integrated in all the FriendlyCore images that are and will be released after June 5, 2017. Therefore for images released after this date no installation is needed.<br />
Source code：https://github.com/friendlyarm/RPi.GPIO_NP

==Code Sample with RPi.GPIO_NP==
Here is code sample on how to access a NanoPi NEO2. A [[Matrix - LED]] is connected to a NanoPi NEO2 in the following hardware setup:<br />
[[File:WiringNP-LED-Demo.jpg|frameless|300px|WiringNP-LED-Demo]]<br />
Pin Connection:<br />
{| class="wikitable"
|-
|Matrix-LED || NanoPi NEO2
|-
|S    || Pin7
|-
|V    || Pin4
|- 
|G    || Pin6
|}

The code sample shows how to make an LED blink in Python<br />
Pin 7 is accessed in this code sample:<br />

===Code Sample in Python===
Create a source file in Python:
<syntaxhighlight lang="bash">
vi led.py
</syntaxhighlight>
Type in the following lines:
<syntaxhighlight lang="python">
#!/usr/bin/env python
import RPi.GPIO as GPIO
import time
PIN_NUM = 7

GPIO.setmode(GPIO.BOARD)
GPIO.setup(PIN_NUM,GPIO.OUT)
while True:
        GPIO.output(PIN_NUM,True)
        time.sleep(1)
        GPIO.output(PIN_NUM,False)
        time.sleep(1)
</syntaxhighlight>
Run led.py：
<syntaxhighlight lang="bash">
chmod +x led.py
sudo ./led.py
</syntaxhighlight>
The LED module will blink if you do everything right.

==Update Log==
===June-7-2017===
* Released English Version