From 87b2d4cb2c327e1d013c11f920f155c9cf60e99f Mon Sep 17 00:00:00 2001
From: sieja <sieja>
Date: Thu, 4 Sep 2025 19:20:56 +0200
Subject: [PATCH] PlantWaterer v0.1

---
 ESP32/PlantWaterer/PlantWaterer.ino | 109 ++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 ESP32/PlantWaterer/PlantWaterer.ino

diff --git a/ESP32/PlantWaterer/PlantWaterer.ino b/ESP32/PlantWaterer/PlantWaterer.ino
new file mode 100644
index 0000000..5ef2727
--- /dev/null
+++ b/ESP32/PlantWaterer/PlantWaterer.ino
@@ -0,0 +1,109 @@
+#include <SPI.h>
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+#define Version "0.1"
+#define SCREEN_WIDTH 128
+#define SCREEN_HEIGHT 32
+#define OLED_RESET -1
+#define SCREEN_ADDRESS 0x3C
+//PINS
+#define WTR_SENSOR 4     //GPIO04    D4
+#define PIN_PUMP 26      //GPIO26    D26
+#define wetSoil 1200     // Define max value we consider soil 'wet'
+#define midSoil 1730     // Define max value we consider soil 'wet'
+#define drySoil 2400     // Define min value we consider soil 'dry'
+#define AIR 3150         // Define min value we consider soil 'dry'
+#define cupOfWater 1024  // Define min value we consider soil 'dry'
+// #define LED_RED_TANK 26  //GPIO25    D25
+// #define WTR_LVL 33  //GPI
+Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
+
+//MAIN VALUES VARIABLES
+int moisture = 0;
+int watertingCnt = 0;
+int minValue = 5000;
+int maxValue = 0;
+int waitSec = 16;
+int waitMs = 1000 * waitSec;
+
+  void setup() {
+  pinMode(WTR_SENSOR, INPUT_PULLDOWN);
+  pinMode(PIN_PUMP, OUTPUT);
+  digitalWrite(PIN_PUMP, LOW);
+  Serial.begin(9600);
+  if (!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
+    Serial.println(F("SSD1306 allocation failed"));
+  }
+
+  display.setTextSize(1);
+  display.setTextColor(SSD1306_WHITE);
+  display.clearDisplay();
+  display.setCursor(0, 0);
+  display.println("Version:");
+  display.setCursor(60, 0);
+  display.println(Version);
+  display.display();
+  moisture = analogRead(WTR_SENSOR);
+  delay(5000);
+  moisture = analogRead(WTR_SENSOR);
+
+}
+
+void loop() {
+  // ###################################################
+  // WYŚWIETLACZ
+   moisture = analogRead(WTR_SENSOR);
+  display.clearDisplay();
+  display.setCursor(110, 0);
+  display.println(Version);
+  display.setCursor(0, 0);
+  display.println("cnt:");
+  display.setCursor(25, 0);
+  display.println(watertingCnt);
+  display.setCursor(45, 0);
+  display.println("lvl:");
+  display.setCursor(70, 0);
+  display.println(moisture);
+  display.setCursor(0, 10);
+  display.println("threshold:>");
+  display.setCursor(73, 10);
+  display.println(drySoil);
+
+if (moisture > maxValue){
+  maxValue = moisture;
+}
+if (moisture < minValue){
+  minValue = moisture;
+}
+  display.setCursor(0, 20);
+  display.println("min:");
+  display.setCursor(23, 20);
+  display.println(minValue);
+  display.setCursor(70, 20);
+  display.println("max:");
+  display.setCursor(93, 20);
+  display.println(maxValue);
+
+  Serial.print("Analog output: ");
+  Serial.println(moisture);
+
+  if (moisture < drySoil) {
+    Serial.println("Status: Soil is too wet");
+    digitalWrite(PIN_PUMP, HIGH);
+
+  } else {
+    display.fillCircle(110, 12, 5, SSD1306_WHITE);
+    display.display();
+    Serial.println("Status: Soil is too dry - time to water!");
+    digitalWrite(PIN_PUMP, LOW);
+    watertingCnt++;
+    delay(waitMs/4);
+    digitalWrite(PIN_PUMP, HIGH);
+}
+  Serial.println();
+
+  display.fillCircle(110, 12, 5, SSD1306_BLACK);
+  display.display();
+  delay(waitMs);
+}
\ No newline at end of file