adjust max frequency to actual existing ones, fix ui error state

rust/src/main.rs

@@ -32,7 +32,7 @@ use tank::*;
 
 const TIME_ZONE: Tz = Berlin;
 
-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) = (

rust/src_webpack/src/plant.ts

@@ -139,13 +139,13 @@ export class PlantView {
     }
 
     update(a: number, b: number) {
-      if (a = 200){
+      if (a == 200){
         this.moistureA.innerText = "error"
       } else {
         this.moistureA.innerText = String(a)
       }
       
-      if (b = 200){
+      if (b == 200){
         this.moistureB.innerText = "error"
       } else {
         this.moistureB.innerText = String(b)