42 lines
1.2 KiB
Rust
42 lines
1.2 KiB
Rust
#![no_std]
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#![no_main]
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#![feature(type_alias_impl_trait)]
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use defmt::*;
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use embassy_executor::Spawner;
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use embassy_rp::adc::{Adc, Config, InterruptHandler};
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use embassy_rp::bind_interrupts;
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use embassy_time::{Duration, Timer};
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use {defmt_rtt as _, panic_probe as _};
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bind_interrupts!(struct Irqs {
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ADC_IRQ_FIFO => InterruptHandler;
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});
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#[embassy_executor::main]
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async fn main(_spawner: Spawner) {
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let p = embassy_rp::init(Default::default());
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let mut adc = Adc::new(p.ADC, Irqs, Config::default());
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let mut p26 = p.PIN_26;
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let mut p27 = p.PIN_27;
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let mut p28 = p.PIN_28;
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loop {
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let level = adc.read(&mut p26).await;
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info!("Pin 26 ADC: {}", level);
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let level = adc.read(&mut p27).await;
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info!("Pin 27 ADC: {}", level);
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let level = adc.read(&mut p28).await;
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info!("Pin 28 ADC: {}", level);
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let temp = adc.read_temperature().await;
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info!("Temp: {} degrees", convert_to_celsius(temp));
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Timer::after(Duration::from_secs(1)).await;
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}
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}
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fn convert_to_celsius(raw_temp: u16) -> f32 {
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// According to chapter 4.9.5. Temperature Sensor in RP2040 datasheet
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27.0 - (raw_temp as f32 * 3.3 / 4096.0 - 0.706) / 0.001721 as f32
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}
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