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led-bar.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import RPi.GPIO as GPIO
import time
pd = 17 #DATA IN
pc = 18 #CLK IN
CmdMode = 0x0000 # Work on 8-bit mode
ON = 0x00ff # 8-bit 1 data
OFF = 0x0000 # 8-bit 0 data
def isBitSet(x, n):
return (x & n**2) != 0
def sendData(d):
clk = True
GPIO.output(pc,0)
time.sleep(0.0005)
for i in range(1,17):
GPIO.output(pc,clk)
GPIO.output(pd,isBitSet(d,i))
clk = not clk
time.sleep(0.00001)
GPIO.output(pc,0)
time.sleep(0.0005)
def latchData():
l = False
GPIO.output(pd,0)
time.sleep(0.0005)
for i in range(1,9):
GPIO.output(pd,l)
l = not l
time.sleep(0.0005)
def setup():
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.setup(pd, GPIO.OUT)
GPIO.setup(pc, GPIO.OUT)
GPIO.output(pd,0)
GPIO.output(pc,0)
#sendData(CmdMode)
for i in range(1,13):
sendData(OFF)
latchData()
def sendLedArray(l):
#sendData(CmdMode)
for i in l:
if i:
sendData(ON)
else:
sendData(OFF)
latchData()
def pattern_countUp():
sendLedArray([1,0,0,0,0,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([1,1,0,0,0,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([1,1,1,0,0,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([1,1,1,1,0,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([1,1,1,1,1,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([1,1,1,1,1,1,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([1,1,1,1,1,1,1,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([1,1,1,1,1,1,1,1,0,0,0,0])
time.sleep(0.1)
sendLedArray([1,1,1,1,1,1,1,1,1,0,0,0])
time.sleep(0.1)
sendLedArray([1,1,1,1,1,1,1,1,1,1,0,0])
def pattern_Kitt():
sendLedArray([1,0,0,0,0,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,1,0,0,0,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,1,0,0,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,1,0,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,0,1,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,0,0,1,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,0,0,0,1,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,0,0,0,0,1,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,0,0,0,0,0,1,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,0,0,0,0,0,0,1,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,0,0,0,0,0,1,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,0,0,0,0,1,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,0,0,0,1,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,0,0,1,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,0,1,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,0,1,0,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,0,1,0,0,0,0,0,0,0,0,0])
time.sleep(0.1)
sendLedArray([0,1,0,0,0,0,0,0,0,0,0,0])
setup()
while(True):
#pattern_Kitt()
pattern_countUp()
print('done.')