exixe Raspberry Pi/Python library

This is a simple Python library for exixe modules intended to be used on a Raspberry Pi.

Requirements

In order to use this library, you must have python installed, SPI interface turned on the Raspberry Pi and spidev python library installed.

Configuration

Turning on SPI

The SPI peripheral is not turned on by default. To enable it, do the following.

Run sudo raspi-config.
Use the down arrow to select 5 Interfacing Options
Arrow down to P4 SPI.
Select yes when it asks you to enable SPI,
Also select yes if it asks about automatically loading the kernel module.
Use the right arrow to select the < Finish > button.
Select yes when it asks to reboot.

Installing spidev

From pip:

pip install spidev

From source:

sudo apt-get update sudo apt-get install python-dev
git clone git://github.com/doceme/py-spidev
cd py-spidev
sudo python setup.py install
sudo python3 setup.py install

Usage

The code has some good documentation that I dont want to repeat but this will be a general overview on how to use the library.

Create SPI initialization

spi = spidev.SpiDev()
spi.open(0,0)
spi.max_speed = 7800000

Identify CS pin to control the individual exixe
Create exixe object

exixe_1 = Exixe(cs_pin,spi)

Control object

exixe_1.set_digit(5)
exixe_1.set_led(127,0,0) # turn led to red