def write_frame(self):
"""
Send a DMX frame
"""
# DMX needs a 88us low to begin a frame,
# 77uS us used because of time it takes to init pin
dmx_uart = Pin(tx_pins[self.port], Pin.OUT_PP)
dmx_uart.value(0)
udelay(74)
dmx_uart.value(1)
# Now turn into a UART port and send DMX data
dmx_uart = UART(self.port)
dmx_uart.init(250000, bits=8, parity=None, stop=2)
#send bytes
dmx_uart.write(self.dmx_message)
#Delete as its going to change anyway
del (dmx_uart)
