|
| 1 | +#![no_std] |
| 2 | +#![no_main] |
| 3 | + |
| 4 | +use assign_resources::assign_resources; |
| 5 | +use defmt::{debug, info, unwrap}; |
| 6 | +use defmt_rtt as _; |
| 7 | +use embassy_executor::Spawner; |
| 8 | +use embassy_rp::gpio::{Input, Level, Output, Pull}; |
| 9 | +use embassy_time::{Delay, Duration, Ticker, Timer}; |
| 10 | +use panic_probe as _; |
| 11 | +use pico_plc_bsp::peripherals; |
| 12 | +use portable_atomic as _; |
| 13 | + |
| 14 | +assign_resources! { |
| 15 | + io: IoPinResources { |
| 16 | + io0: IO_0, |
| 17 | + io1: IO_1, |
| 18 | + io2: IO_2, |
| 19 | + io3: IO_3, |
| 20 | + io4: IO_4, |
| 21 | + io5: IO_5, |
| 22 | + }, |
| 23 | + inputs: InputPinResources { |
| 24 | + in0: IN_0, |
| 25 | + in1: IN_1, |
| 26 | + in2: IN_2, |
| 27 | + in3: IN_3, |
| 28 | + in4: IN_4, |
| 29 | + in5: IN_5, |
| 30 | + in6: IN_6, |
| 31 | + in7: IN_7, |
| 32 | + }, |
| 33 | + relays: RelayResources { |
| 34 | + relay0: RELAY_0, |
| 35 | + relay1: RELAY_1, |
| 36 | + relay2: RELAY_2, |
| 37 | + relay3: RELAY_3, |
| 38 | + relay4: RELAY_4, |
| 39 | + relay5: RELAY_5, |
| 40 | + relay6: RELAY_6, |
| 41 | + relay7: RELAY_7, |
| 42 | + }, |
| 43 | + onewire: OnewireResources { |
| 44 | + pin: ONEWIRE, |
| 45 | + }, |
| 46 | +} |
| 47 | + |
| 48 | +#[embassy_executor::main] |
| 49 | +async fn main(spawner: Spawner) { |
| 50 | + let p = pico_plc_bsp::peripherals::PicoPlc::default(); |
| 51 | + let r = split_resources!(p); |
| 52 | + |
| 53 | + let led = Output::new(p.PIN_25, Level::Low); |
| 54 | + |
| 55 | + let io0 = Input::new(r.io.io0, Pull::Up); |
| 56 | + let io1 = Input::new(r.io.io1, Pull::Up); |
| 57 | + let io2 = Input::new(r.io.io2, Pull::Up); |
| 58 | + let io3 = Input::new(r.io.io3, Pull::Up); |
| 59 | + let io4 = Input::new(r.io.io4, Pull::Up); |
| 60 | + let io5 = Input::new(r.io.io5, Pull::Up); |
| 61 | + |
| 62 | + let in0 = Input::new(r.inputs.in0, Pull::Down); |
| 63 | + let in1 = Input::new(r.inputs.in1, Pull::Down); |
| 64 | + let in2 = Input::new(r.inputs.in2, Pull::Down); |
| 65 | + let in3 = Input::new(r.inputs.in3, Pull::Down); |
| 66 | + let in4 = Input::new(r.inputs.in4, Pull::Down); |
| 67 | + let in5 = Input::new(r.inputs.in5, Pull::Down); |
| 68 | + let in6 = Input::new(r.inputs.in6, Pull::Down); |
| 69 | + let in7 = Input::new(r.inputs.in7, Pull::Down); |
| 70 | + |
| 71 | + unwrap!(spawner.spawn(read_isolated_input(in0, 0))); |
| 72 | + unwrap!(spawner.spawn(read_isolated_input(in1, 1))); |
| 73 | + unwrap!(spawner.spawn(read_isolated_input(in2, 2))); |
| 74 | + unwrap!(spawner.spawn(read_isolated_input(in3, 3))); |
| 75 | + unwrap!(spawner.spawn(read_isolated_input(in4, 4))); |
| 76 | + unwrap!(spawner.spawn(read_isolated_input(in5, 5))); |
| 77 | + unwrap!(spawner.spawn(read_isolated_input(in6, 6))); |
| 78 | + unwrap!(spawner.spawn(read_isolated_input(in7, 7))); |
| 79 | + |
| 80 | + unwrap!(spawner.spawn(read_io(io0, 0))); |
| 81 | + unwrap!(spawner.spawn(read_io(io1, 1))); |
| 82 | + unwrap!(spawner.spawn(read_io(io2, 2))); |
| 83 | + unwrap!(spawner.spawn(read_io(io3, 3))); |
| 84 | + unwrap!(spawner.spawn(read_io(io4, 4))); |
| 85 | + unwrap!(spawner.spawn(read_io(io5, 5))); |
| 86 | + |
| 87 | + unwrap!(spawner.spawn(relay_output(r.relays))); |
| 88 | + |
| 89 | + unwrap!(spawner.spawn(blink_led(led))); |
| 90 | + |
| 91 | + unwrap!(spawner.spawn(read_temperature_sensors(r.onewire))); |
| 92 | +} |
| 93 | + |
| 94 | +#[derive(Default)] |
| 95 | +struct PinChangeDetector { |
| 96 | + last: Option<Level>, |
| 97 | +} |
| 98 | + |
| 99 | +impl PinChangeDetector { |
| 100 | + fn update(&mut self, new: Level) -> Option<Level> { |
| 101 | + let changed = self.last != Some(new); |
| 102 | + self.last = Some(new); |
| 103 | + |
| 104 | + if changed { |
| 105 | + self.last |
| 106 | + } else { |
| 107 | + None |
| 108 | + } |
| 109 | + } |
| 110 | +} |
| 111 | + |
| 112 | +fn level_as_str(level: Level) -> &'static str { |
| 113 | + match level { |
| 114 | + Level::Low => "low", |
| 115 | + Level::High => "high", |
| 116 | + } |
| 117 | +} |
| 118 | + |
| 119 | +#[embassy_executor::task(pool_size = 8)] |
| 120 | +async fn read_isolated_input(input: Input<'static>, num: usize) { |
| 121 | + let mut detector = PinChangeDetector::default(); |
| 122 | + |
| 123 | + loop { |
| 124 | + Timer::after_micros(10).await; |
| 125 | + |
| 126 | + if let Some(level) = detector.update(input.get_level()) { |
| 127 | + info!("Input {} is {}", num, level_as_str(level)); |
| 128 | + } |
| 129 | + } |
| 130 | +} |
| 131 | + |
| 132 | +#[embassy_executor::task(pool_size = 6)] |
| 133 | +async fn read_io(input: Input<'static>, num: usize) { |
| 134 | + let mut detector = PinChangeDetector::default(); |
| 135 | + |
| 136 | + loop { |
| 137 | + Timer::after_micros(10).await; |
| 138 | + |
| 139 | + if let Some(level) = detector.update(input.get_level()) { |
| 140 | + info!("IO {} is {}", num, level_as_str(level)); |
| 141 | + } |
| 142 | + } |
| 143 | +} |
| 144 | + |
| 145 | +#[embassy_executor::task] |
| 146 | +async fn blink_led(mut led: Output<'static>) { |
| 147 | + loop { |
| 148 | + led.toggle(); |
| 149 | + Timer::after_millis(500).await; |
| 150 | + } |
| 151 | +} |
| 152 | + |
| 153 | +#[embassy_executor::task] |
| 154 | +async fn relay_output(r: RelayResources) { |
| 155 | + let mut relays = [ |
| 156 | + Output::new(r.relay0, Level::Low), |
| 157 | + Output::new(r.relay1, Level::Low), |
| 158 | + Output::new(r.relay2, Level::Low), |
| 159 | + Output::new(r.relay3, Level::Low), |
| 160 | + Output::new(r.relay4, Level::Low), |
| 161 | + Output::new(r.relay5, Level::Low), |
| 162 | + Output::new(r.relay6, Level::Low), |
| 163 | + Output::new(r.relay7, Level::Low), |
| 164 | + ]; |
| 165 | + |
| 166 | + let mut ticker = Ticker::every(Duration::from_secs(1)); |
| 167 | + |
| 168 | + loop { |
| 169 | + for (i, relay) in relays.iter_mut().enumerate() { |
| 170 | + info!("Turning relay {} on", i); |
| 171 | + relay.set_high(); |
| 172 | + |
| 173 | + ticker.next().await; |
| 174 | + |
| 175 | + info!("Turning relay {} off", i); |
| 176 | + relay.set_low(); |
| 177 | + |
| 178 | + ticker.next().await; |
| 179 | + } |
| 180 | + } |
| 181 | +} |
| 182 | + |
| 183 | +#[embassy_executor::task] |
| 184 | +async fn read_temperature_sensors(r: OnewireResources) { |
| 185 | + let mut bus = pico_plc_bsp::onewire::new(r.pin).unwrap(); |
| 186 | + |
| 187 | + for device_address in bus.devices(false, &mut Delay) { |
| 188 | + let device_address = device_address.unwrap(); |
| 189 | + info!("Found one wire device at address: {}", device_address.0); |
| 190 | + } |
| 191 | + |
| 192 | + let mut ticker = Ticker::every(Duration::from_secs(5)); |
| 193 | + |
| 194 | + loop { |
| 195 | + ds18b20::start_simultaneous_temp_measurement(&mut bus, &mut Delay).unwrap(); |
| 196 | + |
| 197 | + Timer::after_millis(ds18b20::Resolution::Bits12.max_measurement_time_millis() as u64).await; |
| 198 | + |
| 199 | + let mut search_state = None; |
| 200 | + while let Some((device_address, state)) = bus |
| 201 | + .device_search(search_state.as_ref(), false, &mut Delay) |
| 202 | + .unwrap() |
| 203 | + { |
| 204 | + search_state = Some(state); |
| 205 | + |
| 206 | + if device_address.family_code() == ds18b20::FAMILY_CODE { |
| 207 | + debug!("Found DS18B20 at address: {}", device_address.0); |
| 208 | + |
| 209 | + let sensor = ds18b20::Ds18b20::new::<()>(device_address).unwrap(); |
| 210 | + let sensor_data = sensor.read_data(&mut bus, &mut Delay).unwrap(); |
| 211 | + info!( |
| 212 | + "DS18B20 {} is {}°C", |
| 213 | + device_address.0, sensor_data.temperature |
| 214 | + ); |
| 215 | + } else { |
| 216 | + info!( |
| 217 | + "Found unknown one wire device at address: {}", |
| 218 | + device_address.0 |
| 219 | + ); |
| 220 | + } |
| 221 | + } |
| 222 | + |
| 223 | + ticker.next().await; |
| 224 | + } |
| 225 | +} |
0 commit comments