class BLEHandler(LoggingHandler):
"""Send logging output to the BLE uart port."""
def __init__(self):
"""Create an instance.
:param uart: the busio.UART instance to which to write messages
"""
self._advertising_now = False
self._uart = UARTServer()
self._uart.start_advertising()
def format(self, level, msg):
"""Generate a string to log.
:param level: The level at which to log
:param msg: The core message
"""
return super().format(level, msg) + '\r\n'
def emit(self, level, msg):
"""Generate the message and write it to the UART.
:param level: The level at which to log
:param msg: The core message
"""
while not self._uart.connected:
pass
data = bytes(self.format(level, msg), 'utf-8')
self._uart.write(data)
RSTEP_PIN.direction = Direction.OUTPUT
Rled.direction = Direction.OUTPUT
Gled.direction = Direction.OUTPUT
fwd_cmd = str.encode("f")
rev_cmd = str.encode("r")
fast_cmd = str.encode("h")
slow_cmd = str.encode("l")
fstep_cmd = str.encode("u")
rstep_cmd = str.encode("d")
x_cmd = str.encode("x")
flag = True
while True:
uart.start_advertising()
# Wait for a connection
while not uart.connected:
Gled.value = True
Rled.value = False
FWD_PIN.value = False
REV_PIN.value = False
SLOW_PIN.value = False
FAST_PIN.value = False
FSTEP_PIN.value = False
RSTEP_PIN.value = False
pass
while uart.connected:
# Load each pixel's color from the palette using an offset, run it
# through the gamma function, pack RGB value and assign to pixel.
color = fancy.palette_lookup(palette, (offset + i) / NUM_LEDS)
color = fancy.gamma_adjust(color, brightness=0.25)
pixels[i] = color.pack()
pixels.show()
# set initial palette to run on startup
palette_choice = PALETTE_RAINBOW
# True if cycling a palette
cycling = True
while True:
uart_server.start_advertising()
while not uart_server.connected:
if cycling:
set_palette(palette_choice)
offset = (offset + offset_increment) % OFFSET_MAX
# Now we're connected
while uart_server.connected:
if uart_server.in_waiting:
packet = Packet.from_stream(uart_server)
if isinstance(packet, ColorPacket):
cycling = False
# Set all the pixels to one color and stay there.
pixels.fill(packet.color)
pixels.show()