Raspberry Pi Forums

Code: Select all

import wiringpi
import time

wiringpi.wiringPiSetupGpio()

_DATA 		= 23
_STRB 		= 24
_CLK 		= 25

_DIGITS     = 6
_7SEGTYPE   = 'A'

_DIGITS		= [0x00, 0x00, 0x00, 0x00, 0x00, 0x00]
			# 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, Blank, -
'''
_NUMBERS = [bytes(b'xB11100111'),
			bytes(b'xB10000100'),
			bytes(b'xB11010011'),
			bytes(b'xB11010110'),
			bytes(b'xB10110100'),
			bytes(b'xB01110110'),
			bytes(b'xB01110111'),
			bytes(b'xB11000100'),
			bytes(b'xB11110111'),
			bytes(b'xB11110110'),
			bytes(b'xB00000000'),
			bytes(b'xB00010000')]
'''			
_NUMBERS1 = [231,
			 132,
			 211,
			 214,
			 180,
			 118,
			 119,
			 196,
			 247,
			 246,
			 0,
			 16]


'''
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BOARD)

GPIO.setup(_DATA , GPIO.OUT)
GPIO.setup(_STRB , GPIO.OUT)
GPIO.output(_STRB, 1)	
GPIO.setup(_CLK , GPIO.OUT)
'''

wiringpi.pinMode(_DATA, 1)
wiringpi.pinMode(_STRB, 1)
wiringpi.pinMode(_CLK, 	1)

#wiringpi.digitalWrite(_STRB, 0)

def Print(number, digits, dp):
	negate = False
	x = int(dp)
	y = int(0)
	
	tmp = long(number)
	
	if(tmp <  0):
		negate = 1
		tmp = tmp * -1
		if(tmp > 999999):
			tmp /= 10
			if(x > 0):
				x = x-1
	else:
		if(tmp > 999999):
			tmp /= 10
			if(x > 0):
				x = x-1
				
	while(tmp > 0 and y < digits):
		_DIGITS[y] = tmp % 10
		tmp /= 10
		y += 1
		
	while(y < digits):
		_DIGITS[y] = 0
		y += 1
		
	if(negate):
		_DIGITS[digits - 1] = 11
		
	#for x in range(6):
		#print _DIGITS[x]	
		
	PrintDigits(digits, x)	
	
def PrintDigits(digits, dp):
	global _DIGITS
	global _7SEGTYPE
	
	wiringpi.digitalWrite(_STRB, 0)
	
	for i in range(6):		
		dig = _NUMBERS[_DIGITS[i]]
		print dig
		#if(dp > 0):
			#if(i == dp):
				#dig |= xB00001000
				
		if(_7SEGTYPE == 'C'):
			PrintHex(dig, 0)		
		elif (_7SEGTYPE == 'A')	:			
			PrintHex(dig, 0)
	
	wiringpi.digitalWrite(_STRB, 1)

def PrintHex( x, y):	
	wiringpi.shiftOut(_DATA, _CLK, 0, x)
	
if __name__ == "__main__":
	Print(1, 6, 0)	
	

Code: Select all

import spidev
import time
spi = spidev.SpiDev()
spi.open(0,0)
Counter=0;
#Digits   Convert nibble  value into  the correct segment led  digit 
Digits = [63,6,91,79,102,109,125,7,127,111,119,124,57,94,121,113]
while True:

  D1 =  Digits[Counter % 10]
  D2 =  Digits[(Counter / 10) % 10]
  D3 =  Digits[(Counter / 100) % 10]
  D4 =  Digits[(Counter / 1000) % 10]
  #this is actually the single command to send info ( 4 bytes)
  spi.xfer2([D1,D2,D3,D4]);
  Counter = Counter + 1
  time.sleep(0.1)