电池仿真

use lager::{BatteryMode, LagerBox};

let lager = LagerBox::from_env()?;
let battery = lager.battery("battery1");

pub enum BatteryMode { Static, Dynamic }

pub struct BatteryState {
    pub netname: Option<String>,
    pub channel: Option<i64>,
    pub error: Option<String>,
    pub terminal_voltage: Option<f64>,  // V
    pub current: Option<f64>,           // A
    pub esr: Option<f64>,               // ohm
    pub soc: Option<f64>,               // percent
    pub voc: Option<f64>,               // V
    pub enabled: Option<bool>,
    pub mode: Option<String>,           // "Static" or "Dynamic"
    pub model: Option<String>,          // e.g. "LI_ION4_2"
    pub capacity: Option<f64>,          // Ah
    pub current_limit: Option<f64>,     // A
    pub ocp_limit: Option<f64>,
    pub ovp_limit: Option<f64>,
    pub volt_full: Option<f64>,
    pub volt_empty: Option<f64>,
    pub ocp_tripped: Option<bool>,
    pub ovp_tripped: Option<bool>,
}

battery.set_soc(20.0)?;   // nearly flat

use lager::{BatteryMode, LagerBox};

let lager = LagerBox::from_env()?;
let battery = lager.battery("battery1");
let warn = lager.gpio("low_batt_led");

battery.init_battery_mode()?;
battery.set_capacity(2.0)?;
battery.set_volt_full(4.2)?;
battery.set_volt_empty(3.0)?;
battery.set_mode(BatteryMode::Static)?;
battery.enable()?;

for soc in [80.0_f64, 40.0, 20.0, 10.0, 5.0] {
    battery.set_soc(soc)?;
    std::thread::sleep(std::time::Duration::from_secs(2));
    let s = battery.state()?;
    println!("SOC {soc:>5.1}%  terminal {:?} V  warn={:?}",
             s.terminal_voltage, warn.input()?);
}

battery.disable()?;