def swarm(intensity, bounds, count, maxv, varyv, delay, color, **kwargs):
# setup the port and LED device
serial = busio.SPI(clk, MOSI=din)
device = matrices.Matrix8x8(serial, cs)
device.brightness(intensity)
device.fill(0)
ffs = Fireflies(bounds, count, maxv, varyv)
canvas = None
renderer = FireflyRendererLed_AF(canvas, device, bounds, ffs, color,
**kwargs)
while(True):
deque(map(lambda firefly: firefly.move(), ffs.flies))
renderer.render()
time.sleep(delay)
from analogio import AnalogIn
msg7RESET = DigitalInOut(board.D3)
msg7RESET.direction = Direction.OUTPUT
msg7Strobe = DigitalInOut(board.D4)
msg7Strobe.direction = Direction.OUTPUT
msg7DCout = AnalogIn(board.A3) # reset, strobe and DC out pins for MSGEQ7
clk = RX
din = TX
cs = DigitalInOut(board.A2) # pins for the MAX7219
spi = busio.SPI(clk, MOSI=din)
display = matrices.Matrix8x8(spi, cs) # SPI setup for MAX7219
baseVal = 21000 # base value for use with some math in the loop. 21000 because it's divisible by 7
def getVoltage(pin):
return (pin.value) # function to get the analog value from DC out
while True:
msg7RESET.value = True
time.sleep(.00001)
msg7RESET.value = False # resets the Reset pin on MSGEQ7
display.brightness(3) # brightness for the matrix
from adafruit_max7219 import matrices
from board import TX, RX, A2
import busio
import digitalio
import time
clk = RX
din = TX
cs = digitalio.DigitalInOut(A2)
spi = busio.SPI(clk, MOSI=din)
display = matrices.Matrix8x8(spi, cs)
while True:
display.brightness(3)
display.fill(1)
display.pixel(3, 3)
display.pixel(3, 4)
display.pixel(4, 3)
display.pixel(4, 4)
display.show()
time.sleep(3.0)
display.clear_all()
s = 'Hello, World!'
for c in range(len(s) * 8):
display.fill(0)
display.text(s, -c, 0)
display.show()
time.sleep(0.25)
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT
import time
import board
import digitalio
from adafruit_max7219 import matrices
# You may need to change the chip select pin depending on your wiring
spi = board.SPI()
cs = digitalio.DigitalInOut(board.D4)
matrix = matrices.Matrix8x8(spi, cs)
while True:
print("Cycle start")
# all lit up
matrix.fill(True)
matrix.show()
time.sleep(0.5)
# all off
matrix.fill(False)
matrix.show()
time.sleep(0.5)
# one column of leds lit
for i in range(8):
matrix.pixel(1, i, 1)
matrix.show()
time.sleep(0.5)