def __init__(self, clk, dio):
self.clk = clk
self.dio = dio
self.brightness = 0x0f
GPIO.cleanup()
self.SetupGpio(self.clk, GPIO.OUT)
self.SetupGpio(self.dio, GPIO.OUT)
GPIO.output(self.clk, GPIO.LOW)
GPIO.output(self.dio, GPIO.LOW)
GPIO.direction(self.clk, GPIO.IN)
GPIO.direction(self.dio, GPIO.IN)
def stop(self):
GPIO.direction(self.dio, GPIO.OUT)
self.bit_delay()
GPIO.direction(self.clk, GPIO.IN)
self.bit_delay()
GPIO.direction(self.dio, GPIO.IN)
self.bit_delay()
def SetupGpio(self, pin, mode):
try:
GPIO.setup(pin, mode)
except:
GPIO.direction(pin, mode)
def write_byte(self, b):
# 8 Data Bits
for i in range(8):
# CLK low
GPIO.direction(self.clk, GPIO.OUT)
self.bit_delay()
GPIO.direction(self.dio, GPIO.IN if b & 1 else GPIO.OUT)
self.bit_delay()
GPIO.direction(self.clk, GPIO.IN)
self.bit_delay()
b >>= 1
GPIO.direction(self.clk, GPIO.OUT)
self.bit_delay()
GPIO.direction(self.clk, GPIO.IN)
self.bit_delay()
GPIO.direction(self.clk, GPIO.OUT)
self.bit_delay()
return
def start(self):
GPIO.direction(self.dio, GPIO.OUT)
self.bit_delay()