- increased ambient light sensors power saving level

- reduced operating ambient light level
- slight speed up of LED dimm down time
- LED PWM frequency reduced to 120 Hz

README.md

@@ -84,7 +84,7 @@ Here is an overview of what's needed to build and run the software:
       - When it comes to the step `espup install`, you should consider using `espup install --targets esp32h2` instead, to avoid installing lots of unnecessary dependencies for unused Espressif targets.
 - `cargo build`
 
-After connecting the ESP32-H2 via a flash adapter to an USB computer port: 
+After connecting the ESP32-H2 via a flash adapter to a USB computer port: 
 - `cargo run --release`  _(flashes the chip)_
 - `espflash monitor` _(optional – see ESP32 console output)_ 
 

code/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "sensor-light"
-version = "1.0.2"
+version = "1.0.3-pre"
 authors = ["bitmagier <[email protected]>"]
 edition = "2021"
 resolver = "2"

code/src/main.rs

@@ -16,18 +16,18 @@ mod peripheral;
 pub const LED_POWER_STAGES: u32 = 1000;
 
 /// Percentage of hardware maximum LED brightness we want to reach
-pub const LED_MAX_POWER_LEVEL_PERCENT: f32 = 0.18;
+pub const LED_MAX_POWER_LEVEL_PERCENT: f32 = 0.15;
 
 /// max. reaction delay when LED Power Phase is in Off or ON state
 pub const ON_OFF_REACTION_STEP_DELAY_MS: u32 = 500;
 
 // step-delay (and also max. reaction time) when LED Power Phase is in PowerDown or PowerUp state
-pub const LED_DIMM_DOWN_STEP_DELAY_MS: u32 = 18;
+pub const LED_DIMM_DOWN_STEP_DELAY_MS: u32 = 15;
 
 pub const LED_DIMM_UP_STEP_DELAY_MS: u32 = 6;
 
 pub const LUX_BUFFER_SIZE: usize = 10;
-pub const LUX_THRESHOLD: f32 = 0.75;
+pub const LUX_THRESHOLD: f32 = 0.30;
 
 const STATUS_LOG_INTERVAL: Duration = Duration::from_secs(2);
 

code/src/peripheral.rs

@@ -278,8 +278,8 @@ pub fn init_veml7700<I2C: I2c>(
 
     // Initialize the VEML7700 with I2C
     let mut veml7700_device = Veml7700::new(i2c_driver);
-    // PSM mode two (in combination with defaults for other settings) means a refresh time of 1.1 sec
-    veml7700_device.enable_power_saving(PowerSavingMode::Two).map_err(Error::from)?;
+    // PSM mode Three (in combination with defaults for other settings) means a refresh time of 2.1 sec
+    veml7700_device.enable_power_saving(PowerSavingMode::Three).map_err(Error::from)?;
     veml7700_device.enable().map_err(Error::from)?;
     Ok(veml7700_device)
 }
@@ -299,7 +299,7 @@ where
     C: LedcChannel<SpeedMode=<T as LedcTimer>::SpeedMode>,
     T: LedcTimer + 'static,
 {
-    let freq = 250.Hz();
+    let freq = 120.Hz();
     let resolution = Resolution::Bits12;
 
     let timer_config = TimerConfig::default()