From ce6a2b918583cc381ffda6b1dbe80f08439fec69 Mon Sep 17 00:00:00 2001
From: Laurent <laurent0206.cr@gmail.com>
Date: Thu, 25 Dec 2025 15:37:12 +0100
Subject: [PATCH] Migrated to arduino

---
 .../light-sensor-arduino/light-sensor.ino     | 126 ++++++++++++++++++
 esp32-lora/{ => light-sensor-python}/lora.py  |   0
 esp32-lora/{ => light-sensor-python}/main.py  |   0
 .../{ => light-sensor-python}/screen.py       |   0
 .../{ => light-sensor-python}/ssd1306.py      |   0
 .../{ => light-sensor-python}/sx127x.py       |   0
 6 files changed, 126 insertions(+)
 create mode 100644 esp32-lora/light-sensor-arduino/light-sensor.ino
 rename esp32-lora/{ => light-sensor-python}/lora.py (100%)
 rename esp32-lora/{ => light-sensor-python}/main.py (100%)
 rename esp32-lora/{ => light-sensor-python}/screen.py (100%)
 rename esp32-lora/{ => light-sensor-python}/ssd1306.py (100%)
 rename esp32-lora/{ => light-sensor-python}/sx127x.py (100%)

diff --git a/esp32-lora/light-sensor-arduino/light-sensor.ino b/esp32-lora/light-sensor-arduino/light-sensor.ino
new file mode 100644
index 00000000..d02a8bf8
--- /dev/null
+++ b/esp32-lora/light-sensor-arduino/light-sensor.ino
@@ -0,0 +1,126 @@
+#include "Arduino.h"
+#include <Wire.h>
+#include <SPI.h>
+#include "LoRaWan_APP.h"
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+
+#define SCREEN_WIDTH 128
+#define SCREEN_HEIGHT 64
+#define OLED_RESET    21
+#define OLED_SDA      17
+#define OLED_SCL      18
+
+#define LIGHT_SENSOR_PIN 1
+
+#define RF_FREQUENCY       868100000
+#define TX_OUTPUT_POWER    5
+
+#define LORA_BANDWIDTH         0
+#define LORA_SPREADING_FACTOR  7
+#define LORA_CODINGRATE        1
+#define LORA_PREAMBLE_LENGTH   8
+#define LORA_SYMBOL_TIMEOUT    0
+#define LORA_FIX_LENGTH_PAYLOAD_ON false
+#define LORA_IQ_INVERSION_ON   false
+
+#define BUFFER_SIZE 50
+
+char txpacket[BUFFER_SIZE];
+bool lora_idle = true;
+
+static RadioEvents_t RadioEvents;
+void OnTxDone(void);
+void OnTxTimeout(void);
+
+Adafruit_SSD1306 oled(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
+
+void setup() {
+    Serial.begin(115200);
+    Mcu.begin(HELTEC_BOARD, SLOW_CLK_TPYE);
+
+    RadioEvents.TxDone = OnTxDone;
+    RadioEvents.TxTimeout = OnTxTimeout;
+
+    Radio.Init(&RadioEvents);
+    Radio.SetChannel(RF_FREQUENCY);
+    Radio.SetTxConfig(MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
+                      LORA_SPREADING_FACTOR, LORA_CODINGRATE,
+                      LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
+                      true, 0, 0, LORA_IQ_INVERSION_ON, 3000);
+
+    Wire.begin(OLED_SDA, OLED_SCL);
+
+    if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
+        Serial.println(F("Échec de l'initialisation OLED"));
+        while(true);
+    }
+
+    oled.clearDisplay();
+    oled.setTextSize(1);
+    oled.setTextColor(SSD1306_WHITE);
+    oled.setCursor(0, 10);
+    oled.println("Hello OLED!");
+    oled.display();
+}
+
+void loop() {
+    if (lora_idle) {
+        delay(1000);
+
+        int sensorValue = analogRead(LIGHT_SENSOR_PIN);
+        float percentile = (sensorValue * 100.0) / 2430.0;
+
+        char percentileLine[30];
+        sprintf(percentileLine, "%.1f%%", percentile);
+
+        char adviceLine[30];
+        if (percentile > 75) {
+            strcpy(adviceLine, "Too bright");
+        } else if (percentile < 25) {
+            strcpy(adviceLine, "Too dark !");
+        } else {
+            strcpy(adviceLine, "I'm fine :)");
+        }
+
+        const char* lines[] = {
+            "Sensor value",
+            percentileLine,
+            adviceLine
+        };
+        displayMultipleMessages(lines, 3);
+
+        // Préparer le paquet JSON
+        snprintf(txpacket, BUFFER_SIZE, "{\"lightSensorValue\": %d}", sensorValue);
+        Serial.printf("\r\nSending packet: %s\n", txpacket);
+
+        Radio.Send((uint8_t*)txpacket, strlen(txpacket));
+        lora_idle = false;
+    }
+
+    Radio.IrqProcess();
+}
+
+void displayMultipleMessages(const char* messages[], int numLines) {
+    oled.clearDisplay();
+    oled.setTextSize(1);
+    oled.setTextColor(SSD1306_WHITE);
+
+    int lineHeight = 16;
+    for (int i = 0; i < numLines; i++) {
+        oled.setCursor(0, i * lineHeight);
+        oled.println(messages[i]);
+    }
+    oled.display();
+}
+
+void OnTxDone(void) {
+    Serial.println("TX done...");
+    lora_idle = true;
+}
+
+void OnTxTimeout(void) {
+    Radio.Sleep();
+    Serial.println("TX Timeout...");
+    lora_idle = true;
+}
diff --git a/esp32-lora/lora.py b/esp32-lora/light-sensor-python/lora.py
similarity index 100%
rename from esp32-lora/lora.py
rename to esp32-lora/light-sensor-python/lora.py
diff --git a/esp32-lora/main.py b/esp32-lora/light-sensor-python/main.py
similarity index 100%
rename from esp32-lora/main.py
rename to esp32-lora/light-sensor-python/main.py
diff --git a/esp32-lora/screen.py b/esp32-lora/light-sensor-python/screen.py
similarity index 100%
rename from esp32-lora/screen.py
rename to esp32-lora/light-sensor-python/screen.py
diff --git a/esp32-lora/ssd1306.py b/esp32-lora/light-sensor-python/ssd1306.py
similarity index 100%
rename from esp32-lora/ssd1306.py
rename to esp32-lora/light-sensor-python/ssd1306.py
diff --git a/esp32-lora/sx127x.py b/esp32-lora/light-sensor-python/sx127x.py
similarity index 100%
rename from esp32-lora/sx127x.py
rename to esp32-lora/light-sensor-python/sx127x.py