mirror of
https://github.com/esp-rs/esp-hal.git
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f52aa1351c
* Create virtual peripherals for `ADC`/`DAC` * Refactor the `analog::dac` module * Refactor the `analog::adc` module * Decouple the ADC driver from the `embedded-hal` traits * Update `CHANGELOG.md` * Seal the `AdcCalScheme` trait, reduce visibility of `AdcCalEfuse` trait * Remove `APB_SARADC`/`SENS` peripherals from the `Peripherals` struct
52 lines
1.6 KiB
Rust
52 lines
1.6 KiB
Rust
//! Connect a potentiometer to PIN3 and see the read values change when
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//! rotating the shaft. Alternatively you could also connect the PIN to GND or
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//! 3V3 to see the maximum and minimum raw values read.
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#![no_std]
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#![no_main]
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use esp32s3_hal::{
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adc::{self, AdcConfig, Attenuation, ADC},
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clock::ClockControl,
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gpio::IO,
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peripherals::{Peripherals, ADC1},
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prelude::*,
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Delay,
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};
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use esp_backtrace as _;
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use esp_println::println;
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#[entry]
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fn main() -> ! {
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let peripherals = Peripherals::take();
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let system = peripherals.SYSTEM.split();
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let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
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let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
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// Create ADC instances
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// You can try any of the following calibration methods by uncommenting them.
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// Note that only AdcCalLine and AdcCalCurve return readings in mV; the other
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// two return raw readings in some unspecified scale.
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//
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// type AdcCal = ();
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// type AdcCal = adc::AdcCalBasic<ADC1>;
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// type AdcCal = adc::AdcCalLine<ADC1>;
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type AdcCal = adc::AdcCalCurve<ADC1>;
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let mut adc1_config = AdcConfig::new();
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let mut pin = adc1_config.enable_pin_with_cal::<_, AdcCal>(
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io.pins.gpio3.into_analog(),
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Attenuation::Attenuation11dB,
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);
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let mut adc1 = ADC::<ADC1>::adc(peripherals.ADC1, adc1_config).unwrap();
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let mut delay = Delay::new(&clocks);
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loop {
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let pin_mv = nb::block!(adc1.read(&mut pin)).unwrap();
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println!("PIN2 ADC reading = {pin_mv} mV");
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delay.delay_ms(1500u32);
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}
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}
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