rust/Cargo.toml

@@ -77,7 +77,7 @@ serde = { version = "1.0.192",  features = ["derive"] }
 serde_json = "1.0.108"
 
 #timezone
-chrono = { version = "0.4.23", default-features = false , features = ["iana-time-zone" , "alloc"] }
+chrono = { version = "0.4.23", default-features = false , features = ["iana-time-zone" , "alloc", "serde"] }
 chrono-tz = {version="0.8.0", default-features = false , features = [ "filter-by-regex" ]}
 eeprom24x = "0.7.2"
 url = "2.5.3"

rust/src/config.rs

@@ -2,6 +2,7 @@ use std::str::FromStr;
 
 use serde::{Deserialize, Serialize};
 
+use crate::plant_state::PlantWateringMode;
 use crate::PLANT_COUNT;
 
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
@@ -83,8 +84,8 @@ pub struct PlantControllerConfig {
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
 #[serde(default)]
 pub struct PlantConfig {
-    pub mode: Mode,
+    pub mode: PlantWateringMode,
-    pub target_moisture: u8,
+    pub target_moisture: f32,
     pub pump_time_s: u16,
     pub pump_cooldown_min: u16,
     pub pump_hour_start: u8,
@@ -96,8 +97,8 @@ pub struct PlantConfig {
 impl Default for PlantConfig {
     fn default() -> Self {
         Self {
-            mode: Mode::OFF,
+            mode: PlantWateringMode::OFF,
-            target_moisture: 40,
+            target_moisture: 40.,
             pump_time_s: 30,
             pump_cooldown_min: 60,
             pump_hour_start: 9,
@@ -108,11 +109,3 @@ impl Default for PlantConfig {
         }
     }
 }
-
-#[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
-pub enum Mode {
-    OFF,
-    TargetMoisture,
-    TimerOnly,
-    TimerAndDeadzone,
-}

rust/src/main.rs

@@ -7,7 +7,7 @@ use anyhow::{bail, Result};
 use chrono::{DateTime, Datelike, TimeDelta, Timelike, Utc};
 use chrono_tz::{Europe::Berlin, Tz};
 
-use config::Mode;
+use config::PlantWateringMode;
 use esp_idf_hal::delay::Delay;
 use esp_idf_sys::{
     esp_ota_get_app_partition_count, esp_ota_get_running_partition, esp_ota_get_state_partition,
@@ -28,8 +28,9 @@ mod log;
 pub mod plant_hal;
 mod plant_state;
 mod tank;
+pub mod util;
 
-use plant_state::{PlantInfo, PlantStateMQTT};
+use plant_state::{PlantInfo, PlantState};
 use tank::*;
 
 const TIME_ZONE: Tz = Berlin;
@@ -406,18 +407,10 @@ fn safe_main() -> anyhow::Result<()> {
         }
     };
 
-    let mut plantstate: [PlantInfo; PLANT_COUNT] = core::array::from_fn(|_| PlantInfo {
+    let mut plantstate: [PlantState; PLANT_COUNT] =
-        ..Default::default()
+        core::array::from_fn(|i| PlantState::read_hardware_state(i, &mut board, &config.plants[i]));
-    });
-    determine_plant_state(
-        &mut plantstate,
-        timezone_time,
-        &tank_state,
-        &config,
-        &mut board,
-    );
 
-    let pump_required = plantstate.iter().any(|it| it.do_water) && !water_frozen;
+    let pump_required = plantstate.iter().any(|it| it.needs_to_be_watered(&config.plants[i], &timezone_time)) && !water_frozen;
     if pump_required {
         log(log::LogMessage::EnableMain, dry_run as u32, 0, "", "");
         if !dry_run {
@@ -568,279 +561,6 @@ fn publish_battery_state(
     };
 }
 
-fn determine_state_target_moisture_for_plant(
-    board: &mut std::sync::MutexGuard<'_, PlantCtrlBoard<'_>>,
-    plant: usize,
-    state: &mut PlantInfo,
-    config: &PlantControllerConfig,
-    tank_state: &TankState,
-    cur: DateTime<Tz>,
-) {
-    let plant_config = &config.plants[plant];
-    if plant_config.mode == Mode::OFF {
-        return;
-    }
-    match board.measure_moisture_hz(plant, plant_hal::Sensor::A) {
-        Ok(a) => {
-            state.a_raw = Some(a);
-            let mapped = map_range_moisture(a as f32);
-            match mapped {
-                Ok(result) => state.a = Some(result),
-                Err(err) => {
-                    state.sensor_error_a = Some(err);
-                }
-            }
-        }
-        Err(_) => {
-            state.sensor_error_a = Some(SensorError::Unknown);
-        }
-    }
-    if plant_config.sensor_b {
-        match board.measure_moisture_hz(plant, plant_hal::Sensor::B) {
-            Ok(b) => {
-                state.b_raw = Some(b);
-                let mapped = map_range_moisture(b as f32);
-                match mapped {
-                    Ok(result) => state.b = Some(result),
-                    Err(err) => {
-                        state.sensor_error_b = Some(err);
-                    }
-                }
-            }
-            Err(_) => {
-                state.sensor_error_b = Some(SensorError::Unknown);
-            }
-        }
-    }
-
-    //FIXME how to average analyze whatever?
-    let a_low = state.a.is_some() && state.a.unwrap() < plant_config.target_moisture;
-    let b_low = state.b.is_some() && state.b.unwrap() < plant_config.target_moisture;
-
-    if a_low || b_low {
-        state.dry = true;
-        match tank_state.enough_water(&config.tank) {
-            Err(_tank_err) => {
-                if !config.tank.tank_allow_pumping_if_sensor_error {
-                    state.no_water = true;
-                }
-            }
-            // when no tank error, if plant should be watered depends on if enough water is in tank
-            // no_water behaves inversly to enough_water
-            Ok(enough_water) => state.no_water = !enough_water,
-        }
-    }
-    let duration = TimeDelta::try_minutes(plant_config.pump_cooldown_min as i64).unwrap();
-    let last_pump = board.last_pump_time(plant);
-    match last_pump {
-        Some(last_pump) => {
-            let next_pump = last_pump + duration;
-            if next_pump > cur {
-                let local_time = next_pump.with_timezone(&TIME_ZONE);
-                state.next_pump = Some(local_time);
-                state.cooldown = true;
-            }
-        }
-        None => {
-            println!(
-                "Could not restore last pump for plant {}, restoring",
-                plant + 1
-            );
-            board.store_last_pump_time(plant, DateTime::from_timestamp_millis(0).unwrap());
-            state.pump_error = true;
-        }
-    }
-
-    if !in_time_range(
-        &cur,
-        plant_config.pump_hour_start,
-        plant_config.pump_hour_end,
-    ) {
-        state.out_of_work_hour = true;
-    }
-    if state.dry && !state.no_water && !state.cooldown && !state.out_of_work_hour {
-        state.do_water = true;
-    }
-}
-
-fn determine_state_timer_only_for_plant(
-    board: &mut std::sync::MutexGuard<'_, PlantCtrlBoard<'_>>,
-    plant: usize,
-    state: &mut PlantInfo,
-    config: &PlantControllerConfig,
-    tank_state: &TankState,
-    cur: DateTime<Tz>,
-) {
-    let plant_config = &config.plants[plant];
-    let duration = TimeDelta::try_minutes(plant_config.pump_cooldown_min as i64).unwrap();
-
-    let last_pump = board.last_pump_time(plant);
-    match last_pump {
-        Some(last_pump) => {
-            let next_pump = last_pump + duration;
-            if next_pump > cur {
-                let europe_time = next_pump.with_timezone(&TIME_ZONE);
-                state.next_pump = Some(europe_time);
-                state.cooldown = true;
-            } else {
-                match tank_state.enough_water(&config.tank) {
-                    Err(_tank_err) => {
-                        if !config.tank.tank_allow_pumping_if_sensor_error {
-                            state.do_water = true;
-                        }
-                    }
-                    Ok(enough_water) => {
-                        state.no_water = !enough_water;
-                    }
-                }
-            }
-        }
-        None => {
-            println!(
-                "Could not restore last pump for plant {}, restoring",
-                plant + 1
-            );
-            board.store_last_pump_time(plant, DateTime::from_timestamp_millis(0).unwrap());
-            state.pump_error = true;
-        }
-    }
-}
-
-fn determine_state_timer_and_deadzone_for_plant(
-    board: &mut std::sync::MutexGuard<'_, PlantCtrlBoard<'_>>,
-    plant: usize,
-    state: &mut PlantInfo,
-    config: &PlantControllerConfig,
-    tank_state: &TankState,
-    cur: DateTime<Tz>,
-) {
-    let plant_config = &config.plants[plant];
-    let duration = TimeDelta::try_minutes(plant_config.pump_cooldown_min as i64).unwrap();
-
-    let last_pump = board.last_pump_time(plant);
-    match last_pump {
-        Some(last_pump) => {
-            let next_pump = last_pump + duration;
-            if next_pump > cur {
-                let europe_time = next_pump.with_timezone(&TIME_ZONE);
-                state.next_pump = Some(europe_time);
-                state.cooldown = true;
-            }
-            if !in_time_range(
-                &cur,
-                plant_config.pump_hour_start,
-                plant_config.pump_hour_end,
-            ) {
-                state.out_of_work_hour = true;
-            }
-            if !state.cooldown && !state.out_of_work_hour {
-                match tank_state.enough_water(&config.tank) {
-                    Err(_tank_err) => {
-                        if !config.tank.tank_allow_pumping_if_sensor_error {
-                            state.do_water = true;
-                        }
-                    }
-                    Ok(enough_water) => {
-                        state.no_water = !enough_water;
-                    }
-                }
-            }
-        }
-        None => {
-            println!(
-                "Could not restore last pump for plant {}, restoring",
-                plant + 1
-            );
-            board.store_last_pump_time(plant, DateTime::from_timestamp_millis(0).unwrap());
-            state.pump_error = true;
-        }
-    }
-}
-
-fn determine_plant_state(
-    plantstate: &mut [PlantInfo; PLANT_COUNT],
-    cur: DateTime<Tz>,
-    tank_state: &TankState,
-    config: &PlantControllerConfig,
-    board: &mut std::sync::MutexGuard<'_, PlantCtrlBoard<'_>>,
-) {
-    for plant in 0..PLANT_COUNT {
-        let state = &mut plantstate[plant];
-        let plant_config = &config.plants[plant];
-        match plant_config.mode {
-            config::Mode::OFF => {}
-            config::Mode::TargetMoisture => {
-                determine_state_target_moisture_for_plant(
-                    board, plant, state, config, tank_state, cur,
-                );
-            }
-            config::Mode::TimerOnly => {
-                determine_state_timer_only_for_plant(board, plant, state, config, tank_state, cur);
-            }
-            config::Mode::TimerAndDeadzone => {
-                determine_state_timer_and_deadzone_for_plant(
-                    board, plant, state, config, tank_state, cur,
-                );
-            }
-        }
-
-        if state.sensor_error_a.is_some() || state.sensor_error_b.is_some() {
-            board.fault(plant, true);
-        }
-        if !state.dry {
-            state.consecutive_pump_count = 0;
-            board.store_consecutive_pump_count(plant, 0);
-        }
-        println!("Plant {} state is {:?}", plant, state);
-    }
-}
-
-fn update_plant_state(
-    plantstate: &mut [PlantInfo; PLANT_COUNT],
-    board: &mut std::sync::MutexGuard<'_, PlantCtrlBoard<'_>>,
-    config: &PlantControllerConfig,
-) {
-    for plant in 0..PLANT_COUNT {
-        let state = &plantstate[plant];
-        let plant_config = &config.plants[plant];
-
-        let mode = format!("{:?}", plant_config.mode);
-
-        let plant_dto = PlantStateMQTT {
-            a: &sensor_to_string(
-                &state.a,
-                &state.sensor_error_a,
-                plant_config.mode != Mode::OFF,
-            ),
-            a_raw: &state.a_raw.unwrap_or(0).to_string(),
-            b: &sensor_to_string(&state.b, &state.sensor_error_b, plant_config.sensor_b),
-            b_raw: &state.b_raw.unwrap_or(0).to_string(),
-            active: state.active,
-            mode: &mode,
-            last_pump: &time_to_string_utc(board.last_pump_time(plant)),
-            next_pump: &time_to_string(state.next_pump),
-            consecutive_pump_count: state.consecutive_pump_count,
-            cooldown: state.cooldown,
-            dry: state.dry,
-            not_effective: state.not_effective,
-            out_of_work_hour: state.out_of_work_hour,
-            pump_error: state.pump_error,
-        };
-
-        match serde_json::to_string(&plant_dto) {
-            Ok(state) => {
-                let plant_topic = format!("/plant{}", plant + 1);
-                let _ = board.mqtt_publish(&config, &plant_topic, state.as_bytes());
-                //reduce speed as else messages will be dropped
-                Delay::new_default().delay_ms(200);
-            }
-            Err(err) => {
-                println!("Error publishing lightstate {}", err);
-            }
-        };
-    }
-}
-
 fn wait_infinity(wait_type: WaitType, reboot_now: Arc<AtomicBool>) -> ! {
     let delay = wait_type.blink_pattern();
 

rust/src/plant_state.rs

@@ -1,68 +1,110 @@
-use chrono::{DateTime, Utc};
+use chrono::{DateTime, TimeDelta, Utc};
 use chrono_tz::Tz;
-use serde::Serialize;
+use measurements::humidity;
+use serde::{Deserialize, Serialize};
 
-use crate::{config, plant_hal};
+use crate::{
+    config::{self, PlantConfig},
+    plant_hal::{self, PLANT_COUNT},
+};
 
 const MOIST_SENSOR_MAX_FREQUENCY: u32 = 5500; // 60kHz (500Hz margin)
 const MOIST_SENSOR_MIN_FREQUENCY: u32 = 150; // this is really really dry, think like cactus levels
 
 pub enum HumiditySensorError {
     ShortCircuit { hz: f32, max: f32 },
-    OpenLoop{hz: f32, min: f32}
+    OpenLoop { hz: f32, min: f32 },
 }
 
+#[derive(Debug, PartialEq)]
 pub enum HumiditySensorState {
     Disabled,
     HumidityValue { raw_hz: u32, moisture_percent: f32 },
     SensorError(HumiditySensorError),
-    BoardError(String)
+    BoardError(String),
 }
 
 impl HumiditySensorState {
+    pub fn is_err(&self) -> bool {
+        matches!(self, Self::SensorError(_)) || matches!(self, Self::BoardError(_))
     }
 
-pub enum PumpError {}
+    pub fn moisture_percent(&self) -> Option<f32> {
+        if let HumiditySensorState::HumidityValue {
+            raw_hz,
+            moisture_percent,
+        } = self
+        {
+            Some(moisture_percent)
+        } else {
+            None
+        }
+    }
+}
+
+impl HumiditySensorState {}
+
+#[derive(Debug, PartialEq)]
+pub enum PumpError {
+    PumpNotWorking {
+        failed_attempts: usize,
+        max_allowed_failures: usize,
+    },
+}
 
 pub struct PumpState {
     consecutive_pump_count: u32,
-    previous_pump: Option<DateTime<Utc>>
+    previous_pump: Option<DateTime<Utc>>,
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
+pub enum PlantWateringMode {
+    OFF,
+    TargetMoisture,
+    TimerOnly,
 }
 
 pub enum PlantError {}
 
 pub struct PlantState {
-    sensor_a: HumiditySensorState,
+    pub sensor_a: HumiditySensorState,
-    sensor_b: HumiditySensorState,
+    pub sensor_b: HumiditySensorState,
-    pump: PumpState,
+    pub pump: PumpState,
 }
 
 fn map_range_moisture(s: f32) -> Result<f32, HumiditySensorError> {
     if s < MOIST_SENSOR_MIN_FREQUENCY {
-        return Err(HumiditySensorError::OpenCircuit { hz: s, min: FROM.0 });
+        return Err(HumiditySensorError::OpenCircuit {
+            hz: s,
+            min: MOIST_SENSOR_MIN_FREQUENCY,
+        });
     }
     if s > MOIST_SENSOR_MAX_FREQUENCY {
-        return Err(HumiditySensorError::ShortCircuit { hz: s, max: FROM.1 });
+        return Err(HumiditySensorError::ShortCircuit {
+            hz: s,
+            max: MOIST_SENSOR_MAX_FREQUENCY,
+        });
     }
-    let moisture_percent = (s - MOIST_SENSOR_MIN_FREQUENCY) * 100 / (MOIST_SENSOR_MAX_FREQUENCY - MOIST_SENSOR_MIN_FREQUENCY);
+    let moisture_percent = (s - MOIST_SENSOR_MIN_FREQUENCY) * 100
+        / (MOIST_SENSOR_MAX_FREQUENCY - MOIST_SENSOR_MIN_FREQUENCY);
 
     return Ok(moisture_percent);
 }
 
-
 impl PlantState {
     pub fn read_hardware_state(
         plant_id: usize,
         board: &mut plant_hal::PlantCtrlBoard,
-        config: &config::PlantConfig
+        config: &config::PlantConfig,
     ) -> Self {
         let sensor_a = if config.sensor_a {
             match board.measure_moisture_hz(plant_id, plant_hal::Sensor::A) {
-                Ok(raw) => {
+                Ok(raw) => match map_range_moisture(raw) {
-                    match map_range_moisture(raw) {
+                    Ok(moisture_percent) => HumiditySensorState::HumidityValue {
-                        Ok(moisture_percent) => HumiditySensorState::HumidityValue { raw_hz: raw, moisture_percent },
+                        raw_hz: raw,
+                        moisture_percent,
+                    },
                     Err(err) => HumiditySensorState::SensorError(err),
-                    }
                 },
                 Err(err) => HumiditySensorState::BoardError(err.to_string()),
             }
@@ -71,11 +113,12 @@ impl PlantState {
         };
         let sensor_b = if config.sensor_b {
             match board.measure_moisture_hz(plant_id, plant_hal::Sensor::B) {
-                Ok(raw) => {
+                Ok(raw) => match map_range_moisture(raw) {
-                    match map_range_moisture(raw) {
+                    Ok(moisture_percent) => HumiditySensorState::HumidityValue {
-                        Ok(moisture_percent) => HumiditySensorState::HumidityValue { raw_hz: raw, moisture_percent },
+                        raw_hz: raw,
+                        moisture_percent,
+                    },
                     Err(err) => HumiditySensorState::SensorError(err),
-                    }
                 },
                 Err(err) => HumiditySensorState::BoardError(err.to_string()),
             }
@@ -84,45 +127,145 @@ impl PlantState {
         };
         let previous_pump = board.last_pump_time(plant_id);
         let consecutive_pump_count = board.consecutive_pump_count(plant_id);
-        Self {
+        let state = Self {
             sensor_a,
             sensor_b,
-            pump: PumpState { consecutive_pump_count , previous_pump}
+            pump: PumpState {
+                consecutive_pump_count,
+                previous_pump,
+            },
+        };
+        if state.is_err() {
+            board.fault(plant_id, true);
+        }
+        state
+    }
+
+    pub fn pump_in_timeout(&self, plant_conf: &PlantConfig, current_time: &DateTime<Tz>) -> bool {
+        self.pump.previous_pump.is_some_and(|last_pump| {
+            last_pump
+                .checked_add_signed(TimeDelta::minutes(plant_conf.pump_cooldown_min.into()))
+                .is_some_and(|earliest_next_allowed_pump| {
+                    earliest_next_allowed_pump > *current_time
+                })
+        })
+    }
+
+    pub fn is_err(&self) -> bool {
+        self.sensor_a.is_err() || self.sensor_b.is_err()
+    }
+
+    pub fn needs_to_be_watered(
+        &self,
+        plant_conf: &PlantConfig,
+        current_time: &DateTime<Tz>,
+    ) -> bool {
+        match plant_conf.mode {
+            PlantWateringMode::OFF => false,
+            PlantWateringMode::TargetMoisture => {
+                let moisture_percent = match (
+                    self.sensor_a.moisture_percent(),
+                    &self.sensor_b.moisture_percent(),
+                ) {
+                    (Some(moisture_a), Some(moisture_b)) => (moisture_a + moisture_b) / 2.,
+                    (Some(moisture_percent), _) => moisture_percent,
+                    (_, Some(moisture_percent)) => moisture_percent,
+                    _ => {
+                        // Case for both sensors hitting an error do not water plant in this case
+                        return false;
+                    }
+                };
+                if self.pump_in_timeout(plant_conf, current_time) {
+                    false
+                } else {
+                    if moisture_percent < plant_conf.target_moisture {
+                        true
+                    } else {
+                        false
+                    }
+                }
+            }
+            PlantWateringMode::TimerOnly => {
+                if self.pump_in_timeout(plant_conf, current_time) {
+                    false
+                } else {
+                    true
+                }
+            }
         }
     }
 }
 
-#[derive(Debug, PartialEq, Default, Serialize)]
+fn update_plant_state(
+    plantstate: &mut [PlantInfo; PLANT_COUNT],
+    board: &mut std::sync::MutexGuard<'_, PlantCtrlBoard<'_>>,
+    config: &PlantControllerConfig,
+) {
+    for plant in 0..PLANT_COUNT {
+        let state = &plantstate[plant];
+        let plant_config = &config.plants[plant];
+
+        let mode = format!("{:?}", plant_config.mode);
+
+        let plant_dto = PlantStateMQTT {
+            a: &sensor_to_string(
+                &state.a,
+                &state.sensor_error_a,
+                plant_config.mode != PlantWateringMode::OFF,
+            ),
+            a_raw: &state.a_raw.unwrap_or(0).to_string(),
+            b: &sensor_to_string(&state.b, &state.sensor_error_b, plant_config.sensor_b),
+            b_raw: &state.b_raw.unwrap_or(0).to_string(),
+            active: state.active,
+            mode: &mode,
+            last_pump: &time_to_string_utc(board.last_pump_time(plant)),
+            next_pump: &time_to_string(state.next_pump),
+            consecutive_pump_count: state.consecutive_pump_count,
+            cooldown: state.cooldown,
+            dry: state.dry,
+            not_effective: state.not_effective,
+            out_of_work_hour: state.out_of_work_hour,
+            pump_error: state.pump_error,
+        };
+
+        match serde_json::to_string(&plant_dto) {
+            Ok(state) => {
+                let plant_topic = format!("/plant{}", plant + 1);
+                let _ = board.mqtt_publish(&config, &plant_topic, state.as_bytes());
+                //reduce speed as else messages will be dropped
+                Delay::new_default().delay_ms(200);
+            }
+            Err(err) => {
+                println!("Error publishing lightstate {}", err);
+            }
+        };
+    }
+}
+
+#[derive(Debug, PartialEq, Serialize)]
 /// State of a single plant to be tracked
 pub struct PlantInfo {
     /// state of humidity sensor on bank a
-    a: HumiditySensorState,
+    sensor_a: HumiditySensorState,
-    /// raw measured frequency value for sensor on bank a in hertz
-    a_raw: Option<u32>,
     /// state of humidity sensor on bank b
-    b: HumiditySensorState,
+    sensor_b: HumiditySensorState,
-    /// raw measured frequency value for sensor on bank b in hertz
-    b_raw: Option<u32>,
     /// configured plant watering mode
-    mode: config::Mode,
+    mode: config::PlantWateringMode,
-    /// how often has the logic determined that plant should have been irrigated but wasn't
-    consecutive_pump_count: u32,
     /// plant needs to be watered
     do_water: bool,
     /// is plant considerd to be dry according to settings
     dry: bool,
-    /// is pump currently running
-    active: bool,
-    /// TODO: convert this to an Option<PumpErorr> enum for every case that can happen
-    pump_error: bool,
-    /// if pump count has increased higher than configured limit
-    not_effective: bool,
     /// plant irrigation cooldown is active
     cooldown: bool,
     /// we want to irrigate but tank is empty
     no_water: bool,
-    /// pump should not be watered at this time of day
+    /// plant should not be watered at this time of day TODO: does this really belong here? Isn't this a global setting?
     out_of_work_hour: bool,
+    /// is pump currently running
+    active: bool,
+    /// how often has the logic determined that plant should have been irrigated but wasn't
+    consecutive_pump_count: u32,
+    pump_error: Option<PumpError>,
     /// last time when pump was active
     last_pump: Option<DateTime<Tz>>,
     /// next time when pump should activate

rust/src/util.rs

@@ -0,0 +1,10 @@
+
+pub trait LimitPrecision {
+    fn to_precision(self, presision: i32) -> self;
+}
+
+impl LimitPrecision for f32 {
+    fn to_precision(self, precision: i32) -> self {
+        (self * (10_f32).powi(precision)).round() / (10_f32).powi(precision)
+    }
+}

rust/src/webserver/webserver.rs

@@ -1,8 +1,8 @@
 //offer ota and config mode
 
 use crate::{
-    determine_tank_state, get_version, log::LogMessage, map_range_moisture, plant_hal::PLANT_COUNT,
+    determine_tank_state, get_version, log::LogMessage, plant_hal::PLANT_COUNT,
-    BOARD_ACCESS,
+    plant_state::PlantState, util::LimitPrecision, BOARD_ACCESS,
 };
 use anyhow::bail;
 use chrono::DateTime;
@@ -35,8 +35,8 @@ struct LoadData<'a> {
 
 #[derive(Serialize, Debug)]
 struct Moistures {
-    moisture_a: Vec<u8>,
+    moisture_a: Vec<Option<f32>>,
-    moisture_b: Vec<u8>,
+    moisture_b: Vec<Option<f32>>,
 }
 
 #[derive(Deserialize, Debug)]
@@ -81,33 +81,21 @@ fn get_live_moisture(
     _request: &mut Request<&mut EspHttpConnection>,
 ) -> Result<Option<std::string::String>, anyhow::Error> {
     let mut board = BOARD_ACCESS.lock().unwrap();
+    let config = board.get_config().unwrap();
 
-    let mut a: Vec<u8> = Vec::new();
+    let plant_state = Vec::from_iter(
-    let mut b: Vec<u8> = Vec::new();
+        (0..PLANT_COUNT).map(|i| PlantState::read_hardware_state(i, &mut board, &config.plants[i])),
-    for plant in 0..8 {
+    );
-        let a_hz = board.measure_moisture_hz(plant, crate::plant_hal::Sensor::A)?;
+    let a = Vec::from_iter(
-        let b_hz = board.measure_moisture_hz(plant, crate::plant_hal::Sensor::B)?;
+        plant_state
-        let a_pct = map_range_moisture(a_hz as f32);
+            .iter()
-
+            .map(|s| s.sensor_a.moisture_percent().map(|f| f.to_precision(2))),
-        match a_pct {
+    );
-            Ok(result) => {
+    let b = Vec::from_iter(
-                a.push(result);
+        plant_state
-            }
+            .iter()
-            Err(_) => {
+            .map(|s| s.sensor_b.moisture_percent().map(|f| f.to_precision(2))),
-                a.push(200);
+    );
-            }
-        }
-
-        let b_pct = map_range_moisture(b_hz as f32);
-        match b_pct {
-            Ok(result) => {
-                b.push(result);
-            }
-            Err(_) => {
-                b.push(200);
-            }
-        }
-    }
 
     let data = Moistures {
         moisture_a: a,