init

.gitignore

@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch

platformio.ini

@@ -0,0 +1,19 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:m5stack-core-esp32]
+platform = espressif32
+board = m5stack-core-esp32
+framework = arduino
+upload_protocol = esptool
+lib_deps = 
+	adafruit/Adafruit GFX Library@^1.11.3
+	sandeepmistry/LoRa@^0.8.0
+upload_port=/dev/ttyACM0

src/main.cpp

@@ -0,0 +1,138 @@
+#include <Arduino.h>
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Wire.h>
+#include <SPI.h>
+#include <LoRa.h>
+#include "main.h"
+
+#define RE 8
+#define DE 7
+
+// const byte code[]= {0x01, 0x03, 0x00, 0x1e, 0x00, 0x03, 0x65, 0xCD};
+const byte nitro[] = {0x01, 0x03, 0x00, 0x1e, 0x00, 0x01, 0xe4, 0x0c};
+const byte phos[] = {0x01, 0x03, 0x00, 0x1f, 0x00, 0x01, 0xb5, 0xcc};
+const byte pota[] = {0x01, 0x03, 0x00, 0x20, 0x00, 0x01, 0x85, 0xc0};
+
+byte values[11];
+
+void setup()
+{
+  Serial.begin(9600);
+  while (!Serial)
+    ;
+
+  Serial.println("LoRa Gönderen");
+  Serial.println();
+
+  if (!LoRa.begin(433E6))
+  {
+    Serial.println("LoRa'yı başlatamadım");
+    while (1)
+      ;
+  }
+
+  LoRa.setTxPower(20);
+
+  Serial.begin(9600);
+  Serial2.begin(9600);
+  pinMode(RE, OUTPUT);
+  pinMode(DE, OUTPUT);
+}
+
+void loop()
+{
+  byte val1, val2, val3;
+  val1 = nitrogen();
+  delay(250);
+  val2 = phosphorous();
+  delay(250);
+  val3 = potassium();
+  delay(250);
+
+  Serial.print("Nitrogen: ");
+  Serial.print(val1);
+  Serial.println(" mg/kg");
+  Serial.print("Phosphorous: ");
+  Serial.print(val2);
+  Serial.println(" mg/kg");
+  Serial.print("Potassium: ");
+  Serial.print(val3);
+  Serial.println(" mg/kg");
+  delay(2000);
+
+  LoRa.beginPacket();
+  LoRa.println("LoRa Alıcı");
+  LoRa.println();
+  LoRa.print("Nitrogen   ");
+  LoRa.print(val1);
+  LoRa.println(" mg/kg");
+  LoRa.print("Phosphorous     ");
+  LoRa.print(val2);
+  LoRa.println(" mg/kg");
+  LoRa.print("Potassium     ");
+  LoRa.print(val3);
+  LoRa.println(" mg/kg");
+  LoRa.endPacket();
+  delay(1000);
+}
+
+byte nitrogen()
+{
+  digitalWrite(DE, HIGH);
+  digitalWrite(RE, HIGH);
+  delay(10);
+  if (Serial2.write(nitro, sizeof(nitro)) == 8)
+  {
+    digitalWrite(DE, LOW);
+    digitalWrite(RE, LOW);
+    for (byte i = 0; i < 7; i++)
+    {
+      // Serial.print(Serial2.read(),HEX);
+      values[i] = Serial2.read();
+      // Serial.print(values[i],HEX);
+    }
+    Serial.println();
+  }
+  return values[4];
+}
+
+byte phosphorous()
+{
+  digitalWrite(DE, HIGH);
+  digitalWrite(RE, HIGH);
+  delay(10);
+  if (Serial2.write(phos, sizeof(phos)) == 8)
+  {
+    digitalWrite(DE, LOW);
+    digitalWrite(RE, LOW);
+    for (byte i = 0; i < 7; i++)
+    {
+      // Serial.print(Serial2.read(),HEX);
+      values[i] = Serial2.read();
+      // Serial.print(values[i],HEX);
+    }
+    Serial.println();
+  }
+  return values[4];
+}
+
+byte potassium()
+{
+  digitalWrite(DE, HIGH);
+  digitalWrite(RE, HIGH);
+  delay(10);
+  if (Serial2.write(pota, sizeof(pota)) == 8)
+  {
+    digitalWrite(DE, LOW);
+    digitalWrite(RE, LOW);
+    for (byte i = 0; i < 7; i++)
+    {
+      // Serial.print(Serial2.read(),HEX);
+      values[i] = Serial2.read();
+      // Serial.print(values[i],HEX);
+    }
+    Serial.println();
+  }
+  return values[4];
+}

src/main.h

@@ -0,0 +1,3 @@
+byte nitrogen();
+byte phosphorous();
+byte potassium();