def repeat(interval, func):
def loop():
while not Event().wait(interval):
func()
Thread(target=loop).start()
# uses https://raw.githubusercontent.com/tomstokes/python-spi/master/spi.py
from spi import SPI
spi = SPI('/dev/spidev1.0')
spi.mode = SPI.MODE_0
spi.bits_per_word = 8
spi.speed = 10 * 1000000
IODIRA = 0x00
IOCON = 0x0a
GPIOA = 0x12
# write to MCP23S17 register(s), GPIOA by default
def mcp23s17(address, values, register=GPIOA):
global spi
opcode = 0x40 | (address << 1)
spi.write([opcode, register] + values)
# configure up to 5 MCP23S17
