diff --git a/rust/src/main.rs b/rust/src/main.rs
index 6cdf2e9..a6abb98 100644
--- a/rust/src/main.rs
+++ b/rust/src/main.rs
@@ -5,7 +5,7 @@ use std::{
 
 use anyhow::{bail, Result};
 use chrono::{DateTime, Datelike, TimeDelta, Timelike, Utc};
-use chrono_tz::{TZ_VARIANTS, Tz};
+use chrono_tz::{Europe::Berlin, Tz};
 
 use config::Mode;
 use esp_idf_hal::delay::Delay;
@@ -30,7 +30,7 @@ mod tank;
 
 use tank::*;
 
-const MOIST_SENSOR_MAX_FREQUENCY: u32 = 5500; // 60kHz (500Hz margin)
+const MOIST_SENSOR_MAX_FREQUENCY: u32 = 6500; // 60kHz (500Hz margin)
 const MOIST_SENSOR_MIN_FREQUENCY: u32 = 150; // this is really really dry, think like cactus levels
 
 const FROM: (f32, f32) = (
@@ -913,7 +913,13 @@ fn wait_infinity(wait_type: WaitType, reboot_now: Arc<AtomicBool>) -> ! {
     let mut led_count = 8;
     let mut pattern_step = 0;
 
+    let mut led_count = 8;
     loop {
+        // TODO implement actually different blink patterns instead of modulating blink duration
+        if wait_type == WaitType::MissingConfig {
+            led_count %= 8;
+            led_count += 1;
+        };
         unsafe {
             BOARD_ACCESS.lock().unwrap().update_charge_indicator();
             match wait_type {