added docs

README.md

@@ -1 +1,10 @@
 # Smart_Garden
+
+## Requirements
+VisualStudioCode with PlatformIO extension
+
+## Build
+Configuration is defined in `platformio.ini` file. If you have PlatformIO extension installed, just use built-in build-command.
+
+## Flash to µC
+Connect ESP32 to any desired USB-Port and use PlatformIOs upload-command.

docker-compose.yml

@@ -1,23 +0,0 @@
-version: "3"
-
-services:
-  smartgarden-meteor:
-    image: tvm/smart_garden:latest
-    build: .
-    restart: always
-    labels:
-      - traefik.enable=true
-      - traefik.http.routers.smartgarden-meteor-http.rule=Host(`smartgarden-meteor.timovolkmann.de`)
-      - traefik.http.routers.smartgarden-meteor-http.entrypoints=web
-      - traefik.http.routers.smartgarden-meteor-http.middlewares=https-redirect@file
-      - traefik.http.routers.smartgarden-meteor-https.rule=Host(`git.timovolkmann.de`)
-      - traefik.http.routers.smartgarden-meteor-https.entrypoints=web-secure
-      - traefik.http.routers.smartgarden-meteor-https.tls.certresolver=le
-      - traefik.http.services.smartgarden-meteor-service.loadbalancer.server.port=3000
-      - traefik.docker.network=traefik_default
-    
-
-
-networks:
-  traefik_default:
-    external: true

platformio.ini

@@ -18,9 +18,7 @@ monitor_speed = 115200
 lib_deps =
   439 #ID of Lightsensor library BH1750 
   19 #DHT sensor library 
-  ; 31 #Adafruit Unified Sensor
   AutoConnect@^1.1.7
-  AsyncMqttClient@^0.8.2
   ArduinoJson@^6.15.2
   PubSubClient@^2.8
   ArduinoNvs@^2.5

src/capacitiveSoilMoistureSensor.cpp

@@ -5,19 +5,22 @@
 
 const int numReadings = 20;
 
+// reads soil moisture multiple times and calculates average to eliminate noise
 int readCapacitiveSoilMoistureSensor() {
   int total = 0;  // the running total
-  // read from the sensor:
+  // read from the sensor
   for (int readIndex = 0; readIndex < numReadings; readIndex++) {
     total = total + analogRead(PIN_MS);
     delay(2);
   }
   int measurement = total / numReadings;
 
+  // map measurement to relative soil moisture value in %
   int finalRes = map(measurement, VALUE_AIR, VALUE_WATER, 0, 100);
   Serial.print("current soil moisture: ");
   Serial.println(finalRes);
 
+  // clamp mesurement to a value between 0 and 100
   if (finalRes < 0) {
     return 0;
   } else if (finalRes > 100) {

src/connections.cpp

@@ -120,7 +120,7 @@ void onMqttMessage(char *topic, byte *payload, unsigned int payload_length) {
   Serial.println();
 
   if (strcmp(topic, MQTT_LIGHT_PROPERTIES) == 0) {
-    Serial.println("receiving light treshold...");
+    Serial.println("receiving light threshold...");
     Serial.println(topic);
     StaticJsonDocument<1024> doc;
     DeserializationError err = deserializeJson(doc, payload);