Onion Omega2+ (2) LED Blink

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いきよいで、LED Blinkを試み
まず pythonのインストール。

Python Install

メモリが限られているので、python-lightがいいらしい。
root@Omega-6F83:~# opkg update
root@Omega-6F83:~# opkg install python-light
Installing python-light (2.7.13-4) to root…
Downloading http://repo.onion.io/omega2/packages/packages/python-light_2.7.13-4_mipsel_24kc.ipk
Installing python-base (2.7.13-4) to root…
Downloading http://repo.onion.io/omega2/packages/packages/python-base_2.7.13-4_mipsel_24kc.ipk
Installing libffi (3.2.1-2) to root…
Downloading http://repo.onion.io/omega2/packages/packages/libffi_3.2.1-2_mipsel_24kc.ipk
Installing libbz2 (1.0.6-2) to root…
Downloading http://repo.onion.io/omega2/packages/base/libbz2_1.0.6-2_mipsel_24kc.ipk
Configuring python-base.
Configuring libffi.
Configuring libbz2.
Configuring python-light.
root@Omega-6F83:~#

Onion GPIO Python Module

GPIOを制御するモジュール
root@Omega-6F83:~# opkg install python-light pyOnionGpio
Package python-light (2.7.13-4) installed in root is up to date.
Installing pyOnionGpio (0.1-1) to root…
Downloading http://repo.onion.io/omega2/packages/onion/pyOnionGpio_0.1-1_mipsel_24kc.ipk
Configuring pyOnionGpio.
root@Omega-6F83:~#

 

LED Blink

いよいよLED点滅のプログラム
GPIO1にLEDと抵抗を繋ぐ。

import time
import onionGpio
gpioNum = 1
gpioObj = onionGpio.OnionGpio(gpioNum)
## set to output
status  = gpioObj.setOutputDirection(0)
## alternate the value
loop    = 1
value   = 0
while loop == 1:
    # reverse the value
    if value == 0:
        value = 1
    else:
        value = 0
    # set the new value
    status  = gpioObj.setValue(value)
    print 'GPIO%d set to: %d'%(gpioNum, value)
    time.sleep(1)

一秒ことにLED点滅が確認できた。

参考：

  • https://docs.onion.io/omega2-docs/gpio-python-module.html#gpio-python-module