use esp_idf_sys::adc1_get_raw;
use esp_idf_sys::adc1_config_width;
use esp_idf_sys::adc1_config_channel_atten;
use esp_idf_hal::delay::FreeRtos;

fn main() {
    unsafe { 
        adc1_config_width(3);
        adc1_config_channel_atten(0, 3);
    }

    loop {
        unsafe {
            let adc_voltage: f32 = 2920.0 * (adc1_get_raw(0) as f32 / 4095.0);
            println!("ADC Voltage = {} mv", adc_voltage as i32);
        }
        FreeRtos::delay_ms(1000);
    }
}