D 2020-04-28T18:04:25.162
L Python\sLT8900\svia\sSPI
N text/x-markdown
P f0390dfb20bd73bb4f142823dd5a1697dc32fbcca8530cb7ecc0fc939492e8e4
U rkeene
W 921
Python LT8900 via SPI
=====================
This Python module enables a Python to talk to an LT8900 radio attached to an serial peripheral interface (SPI).
Example
-------
import gpiozero
import lt8900_spi
# Need to keep this attached to drive the line high -- if the object disappears then
# the GPIO port gets reconfigured as an input port
# Note broadcom pin numbers are used
reset_gpio = gpiozero.LED(24)
reset_gpio.on()
def reset_module_via_gpio():
reset_gpio.off()
time.sleep(0.1)
reset_gpio.on()
time.sleep(0.1)
radio = lt8900_spi.radio(0, 0, {
'reset_command': reset_module_via_gpio
})
if not radio.initialize():
raise ValueError('Initialize failed')
radio.set_syncword([0x258B, 0x147A])
radio.multi_transmit([0xB0, 0x51, 0xF0, 0x00, 0x00, 0x01, 212], [9, 40, 71], delay = 0.5)
Z 4e6d824365cdd6c59e833f3c58866fbd