#![no_std]
#![no_main]
use esp32c3_hal::{
adc::{AdcConfig, Attenuation, ADC, ADC1},
clock::ClockControl,
gpio::IO,
peripherals::Peripherals,
prelude::*,
timer::TimerGroup,
Delay,
Rtc,
};
use esp_backtrace as _;
use esp_println::println;
#[entry]
fn main() -> ! {
let peripherals = Peripherals::take();
let mut system = peripherals.SYSTEM.split();
let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
let mut rtc = Rtc::new(peripherals.RTC_CNTL);
let timer_group0 = TimerGroup::new(peripherals.TIMG0, &clocks);
let mut wdt0 = timer_group0.wdt;
let timer_group1 = TimerGroup::new(peripherals.TIMG1, &clocks);
let mut wdt1 = timer_group1.wdt;
rtc.swd.disable();
rtc.rwdt.disable();
wdt0.disable();
wdt1.disable();
let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
let analog = peripherals.APB_SARADC.split();
let mut adc1_config = AdcConfig::new();
let mut pin = adc1_config.enable_pin(io.pins.gpio2.into_analog(), Attenuation::Attenuation11dB);
let mut adc1 = ADC::<ADC1>::adc(
&mut system.peripheral_clock_control,
analog.adc1,
adc1_config,
)
.unwrap();
let mut delay = Delay::new(&clocks);
loop {
let pin_value: u16 = nb::block!(adc1.read(&mut pin)).unwrap();
println!("PIN2 ADC reading = {}", pin_value);
delay.delay_ms(1500u32);
}
}