def bitmap(arr, dc):
""" write a sequence of bytes, either as data or command"""
#wiringPy.digital_write(pin_DC, dc)
#wiringPy.digital_write(pin_DC, dc)
if dc==ON:
GPIO.output(pin_DC, GPIO.HIGH)
else:
GPIO.output(pin_DC, GPIO.LOW)
#str=struct.pack('B'*len(arr), *arr)
#print(str)
#print(arr);
#for item in arr:
# writeonebyte(item)
#wiringPy.digital_write_serial_array(0, )
GPIO.bitbang(pin_CLK,pin_DIN,pin_CE,struct.pack('B'*len(arr), *arr))
