Python LT8900 via SPI

This Python module enables a Python to talk to an LT8900 radio attached to an serial peripheral interface (SPI).

Example

#! /usr/bin/env python3

import time

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)