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//! This example runs on the STM32 LoRa Discovery board which has a builtin Semtech Sx127x radio
#![no_std]
#![no_main]
#![macro_use]
#![allow(dead_code)]
#![feature(generic_associated_types)]
#![feature(type_alias_impl_trait)]
use defmt_rtt as _; // global logger
use panic_probe as _;
use embassy_lora::{sx127x::*, LoraTimer};
use embassy_stm32::{
exti::ExtiInput,
gpio::{Input, Level, Output, Pull, Speed},
rng::Rng,
spi,
time::U32Ext,
Peripherals,
};
use lorawan::default_crypto::DefaultFactory as Crypto;
use lorawan_device::async_device::{region, Device, JoinMode};
fn config() -> embassy_stm32::Config {
let mut config = embassy_stm32::Config::default();
config.rcc.mux = embassy_stm32::rcc::ClockSrc::HSI16;
config.rcc.enable_hsi48 = true;
config
}
#[embassy::main(config = "config()")]
async fn main(_spawner: embassy::executor::Spawner, p: Peripherals) {
// SPI for sx127x
let spi = spi::Spi::new(
p.SPI1,
p.PB3,
p.PA7,
p.PA6,
p.DMA1_CH3,
p.DMA1_CH2,
200_000.hz(),
spi::Config::default(),
);
let cs = Output::new(p.PA15, Level::High, Speed::Low);
let reset = Output::new(p.PC0, Level::High, Speed::Low);
let _ = Input::new(p.PB1, Pull::None);
let ready = Input::new(p.PB4, Pull::Up);
let ready_pin = ExtiInput::new(ready, p.EXTI4);
let radio = Sx127xRadio::new(spi, cs, reset, ready_pin, DummySwitch)
.await
.unwrap();
let region = region::EU868::default().into();
let mut device: Device<_, Crypto, _, _> =
Device::new(region, radio, LoraTimer, Rng::new(p.RNG));
defmt::info!("Joining LoRaWAN network");
// TODO: Adjust the EUI and Keys according to your network credentials
device
.join(&JoinMode::OTAA {
deveui: [0, 0, 0, 0, 0, 0, 0, 0],
appeui: [0, 0, 0, 0, 0, 0, 0, 0],
appkey: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
})
.await
.ok()
.unwrap();
defmt::info!("LoRaWAN network joined");
defmt::info!("Sending 'PING'");
device.send(b"PING", 1, false).await.ok().unwrap();
defmt::info!("Message sent!");
}
pub struct DummySwitch;
impl RadioSwitch for DummySwitch {
fn set_rx(&mut self) {}
fn set_tx(&mut self) {}
}
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