From a89a0c2f122759a7e743e75152f7af7f67b4387b Mon Sep 17 00:00:00 2001 From: ceekdee Date: Tue, 27 Sep 2022 21:55:41 -0500 Subject: Initial add for sx126x --- examples/nrf/Cargo.toml | 7 +- examples/nrf/src/bin/lora_p2p_report.rs | 84 ++++++++++++++++ examples/nrf/src/bin/lora_p2p_sense.rs | 173 ++++++++++++++++++++++++++++++++ 3 files changed, 263 insertions(+), 1 deletion(-) create mode 100644 examples/nrf/src/bin/lora_p2p_report.rs create mode 100644 examples/nrf/src/bin/lora_p2p_sense.rs (limited to 'examples') diff --git a/examples/nrf/Cargo.toml b/examples/nrf/Cargo.toml index a5d340c69..54df16ba0 100644 --- a/examples/nrf/Cargo.toml +++ b/examples/nrf/Cargo.toml @@ -5,7 +5,8 @@ version = "0.1.0" [features] default = ["nightly"] -nightly = ["embassy-executor/nightly", "embassy-nrf/nightly", "embassy-net/nightly", "embassy-nrf/unstable-traits", "embassy-usb", "embedded-io/async", "embassy-net"] +nightly = ["embassy-executor/nightly", "embassy-nrf/nightly", "embassy-net/nightly", "embassy-nrf/unstable-traits", "embassy-usb", "embedded-io/async", "embassy-net", + "embassy-lora", "lorawan-device", "lorawan"] [dependencies] embassy-futures = { version = "0.1.0", path = "../../embassy-futures" } @@ -16,6 +17,10 @@ embassy-nrf = { version = "0.1.0", path = "../../embassy-nrf", features = ["defm embassy-net = { version = "0.1.0", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", "pool-16"], optional = true } embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"], optional = true } embedded-io = "0.3.0" +embassy-lora = { version = "0.1.0", path = "../../embassy-lora", features = ["rak4631", "time", "defmt"], optional = true } + +lorawan-device = { version = "0.8.0", default-features = false, features = ["async"], optional = true } +lorawan = { version = "0.7.1", default-features = false, features = ["default-crypto"], optional = true } defmt = "0.3" defmt-rtt = "0.3" diff --git a/examples/nrf/src/bin/lora_p2p_report.rs b/examples/nrf/src/bin/lora_p2p_report.rs new file mode 100644 index 000000000..46cb848b1 --- /dev/null +++ b/examples/nrf/src/bin/lora_p2p_report.rs @@ -0,0 +1,84 @@ +//! This example runs on the RAK4631 WisBlock, which has an nRF52840 MCU and Semtech Sx126x radio. +#![no_std] +#![no_main] +#![macro_use] +#![allow(dead_code)] +#![feature(type_alias_impl_trait)] + +use defmt::*; +use embassy_executor::Spawner; +use embassy_lora::sx126x::*; +use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pin as _, Pull}; +use embassy_nrf::{interrupt, spim}; +use embassy_time::{Duration, Timer}; +use lorawan_device::async_device::radio::{Bandwidth, CodingRate, PhyRxTx, RfConfig, SpreadingFactor}; +use {defmt_rtt as _, panic_probe as _}; + +#[embassy_executor::main] +async fn main(_spawner: Spawner) { + let p = embassy_nrf::init(Default::default()); + let mut spi_config = spim::Config::default(); + spi_config.frequency = spim::Frequency::M1; // M16 ??? + + let mut radio = { + let irq = interrupt::take!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1); + let spim = spim::Spim::new(p.TWISPI1, irq, p.P1_11, p.P1_13, p.P1_12, spi_config); + + let cs = Output::new(p.P1_10, Level::High, OutputDrive::Standard); + let reset = Output::new(p.P1_06, Level::High, OutputDrive::Standard); + let dio1 = Input::new(p.P1_15.degrade(), Pull::Down); + let busy = Input::new(p.P1_14.degrade(), Pull::Down); + let antenna_rx = Output::new(p.P1_05, Level::Low, OutputDrive::Standard); + let antenna_tx = Output::new(p.P1_07, Level::Low, OutputDrive::Standard); + + match Sx126xRadio::new(spim, cs, reset, antenna_rx, antenna_tx, dio1, busy, false).await { + Ok(r) => r, + Err(err) => { + info!("Sx126xRadio error = {}", err); + return; + } + } + }; + + let mut debug_indicator = Output::new(p.P1_03, Level::Low, OutputDrive::Standard); + let mut start_indicator = Output::new(p.P1_04, Level::Low, OutputDrive::Standard); + + start_indicator.set_high(); + Timer::after(Duration::from_secs(5)).await; + start_indicator.set_low(); + + match radio.lora.sleep().await { + Ok(()) => info!("Sleep successful"), + Err(err) => info!("Sleep unsuccessful = {}", err), + } + + let rf_config = RfConfig { + frequency: 903900000, // channel in Hz + bandwidth: Bandwidth::_250KHz, + spreading_factor: SpreadingFactor::_10, + coding_rate: CodingRate::_4_8, + }; + + let mut buffer = [00u8; 100]; + + // P2P receive + match radio.rx(rf_config, &mut buffer).await { + Ok((buffer_len, rx_quality)) => info!( + "RX received = {:?} with length = {} rssi = {} snr = {}", + &buffer[0..buffer_len], + buffer_len, + rx_quality.rssi(), + rx_quality.snr() + ), + Err(err) => info!("RX error = {}", err), + } + + match radio.lora.sleep().await { + Ok(()) => info!("Sleep successful"), + Err(err) => info!("Sleep unsuccessful = {}", err), + } + + debug_indicator.set_high(); + Timer::after(Duration::from_secs(5)).await; + debug_indicator.set_low(); +} diff --git a/examples/nrf/src/bin/lora_p2p_sense.rs b/examples/nrf/src/bin/lora_p2p_sense.rs new file mode 100644 index 000000000..57aaea665 --- /dev/null +++ b/examples/nrf/src/bin/lora_p2p_sense.rs @@ -0,0 +1,173 @@ +//! This example runs on the RAK4631 WisBlock, which has an nRF52840 MCU and Semtech Sx126x radio. +#![no_std] +#![no_main] +#![macro_use] +#![feature(type_alias_impl_trait)] +#![feature(alloc_error_handler)] +#![allow(incomplete_features)] + +use defmt::*; +use embassy_executor::Spawner; +use embassy_lora::sx126x::*; +use embassy_nrf::gpio::{AnyPin, Input, Level, Output, OutputDrive, Pin as _, Pull}; +use embassy_nrf::temp::Temp; +use embassy_nrf::{interrupt, spim}; +use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex; +use embassy_sync::pubsub::{PubSubChannel, Publisher}; +use embassy_time::{Duration, Timer}; +use lorawan_device::async_device::radio::{Bandwidth, CodingRate, PhyRxTx, RfConfig, SpreadingFactor, TxConfig}; +use {defmt_rtt as _, panic_probe as _, panic_probe as _}; + +// Sensor packet constants +const TEMPERATURE_UID: u8 = 0x01; +const MOTION_UID: u8 = 0x02; + +// Message bus: queue of 2, 1 subscriber (Lora P2P), 2 publishers (temperature, motion detection) +static MESSAGE_BUS: PubSubChannel = PubSubChannel::new(); + +#[derive(Clone, defmt::Format)] +enum Message { + Temperature(i32), + MotionDetected, +} + +#[embassy_executor::task] +async fn temperature_task( + mut temperature: Temp<'static>, + publisher: Publisher<'static, CriticalSectionRawMutex, Message, 2, 1, 2>, +) { + Timer::after(Duration::from_secs(45)).await; // stabilize for 45 seconds + + let mut temperature_reporting_threshhold = 10; + + loop { + let value = temperature.read().await; + let mut temperature_val = value.to_num::(); + + info!("Temperature: {}", temperature_val); // debug ??? + + // only report every 2 degree Celsius drops, from 9 through 5, but starting at 3 always report + + if temperature_val == 8 || temperature_val == 6 || temperature_val == 4 { + temperature_val += 1; + } + + if temperature_reporting_threshhold > temperature_val + && (temperature_val == 9 || temperature_val == 7 || temperature_val == 5) + { + temperature_reporting_threshhold = temperature_val; + publisher.publish(Message::Temperature(temperature_val)).await; + } else if temperature_val <= 3 { + publisher.publish(Message::Temperature(temperature_val)).await; + } + + Timer::after(Duration::from_secs(20 * 60)).await; + } +} + +#[embassy_executor::task] +async fn motion_detection_task( + mut pir_pin: Input<'static, AnyPin>, + publisher: Publisher<'static, CriticalSectionRawMutex, Message, 2, 1, 2>, +) { + Timer::after(Duration::from_secs(30)).await; // stabilize for 30 seconds + + loop { + // wait for motion detection + pir_pin.wait_for_low().await; + publisher.publish(Message::MotionDetected).await; + + // wait a minute before setting up for more motion detection + Timer::after(Duration::from_secs(60)).await; + } +} + +#[embassy_executor::main] +async fn main(spawner: Spawner) { + let p = embassy_nrf::init(Default::default()); + // set up to funnel temperature and motion detection events to the Lora Tx task + let mut lora_tx_subscriber = unwrap!(MESSAGE_BUS.subscriber()); + let temperature_publisher = unwrap!(MESSAGE_BUS.publisher()); + let motion_detection_publisher = unwrap!(MESSAGE_BUS.publisher()); + + let mut spi_config = spim::Config::default(); + spi_config.frequency = spim::Frequency::M1; // M16 ??? + + let mut radio = { + let irq = interrupt::take!(SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1); + let spim = spim::Spim::new(p.TWISPI1, irq, p.P1_11, p.P1_13, p.P1_12, spi_config); + + let cs = Output::new(p.P1_10, Level::High, OutputDrive::Standard); + let reset = Output::new(p.P1_06, Level::High, OutputDrive::Standard); + let dio1 = Input::new(p.P1_15.degrade(), Pull::Down); + let busy = Input::new(p.P1_14.degrade(), Pull::Down); + let antenna_rx = Output::new(p.P1_05, Level::Low, OutputDrive::Standard); + let antenna_tx = Output::new(p.P1_07, Level::Low, OutputDrive::Standard); + + match Sx126xRadio::new(spim, cs, reset, antenna_rx, antenna_tx, dio1, busy, false).await { + Ok(r) => r, + Err(err) => { + info!("Sx126xRadio error = {}", err); + return; + } + } + }; + + // set up for the temperature task + let temperature_irq = interrupt::take!(TEMP); + let temperature = Temp::new(p.TEMP, temperature_irq); + + // set the motion detection pin + let pir_pin = Input::new(p.P0_10.degrade(), Pull::Up); + + let mut start_indicator = Output::new(p.P1_04, Level::Low, OutputDrive::Standard); + let mut debug_indicator = Output::new(p.P1_03, Level::Low, OutputDrive::Standard); + + start_indicator.set_high(); + Timer::after(Duration::from_secs(5)).await; + start_indicator.set_low(); + + match radio.lora.sleep().await { + Ok(()) => info!("Sleep successful"), + Err(err) => info!("Sleep unsuccessful = {}", err), + } + + unwrap!(spawner.spawn(temperature_task(temperature, temperature_publisher))); + unwrap!(spawner.spawn(motion_detection_task(pir_pin, motion_detection_publisher))); + + loop { + let message = lora_tx_subscriber.next_message_pure().await; + + let tx_config = TxConfig { + // 11 byte maximum payload for Bandwidth 125 and SF 10 + pw: 20, // up to 20 // 5 ??? + rf: RfConfig { + frequency: 903900000, // channel in Hz, not MHz + bandwidth: Bandwidth::_250KHz, + spreading_factor: SpreadingFactor::_10, + coding_rate: CodingRate::_4_8, + }, + }; + + let mut buffer = [TEMPERATURE_UID, 0xffu8, MOTION_UID, 0x00u8]; + match message { + Message::Temperature(temperature) => buffer[1] = temperature as u8, + Message::MotionDetected => buffer[3] = 0x01u8, + }; + + // crypto for text ??? + match radio.tx(tx_config, &buffer).await { + Ok(ret_val) => info!("TX ret_val = {}", ret_val), + Err(err) => info!("TX error = {}", err), + } + + match radio.lora.sleep().await { + Ok(()) => info!("Sleep successful"), + Err(err) => info!("Sleep unsuccessful = {}", err), + } + + debug_indicator.set_high(); + Timer::after(Duration::from_secs(5)).await; + debug_indicator.set_low(); + } +} -- cgit