commit all

.gitignore

@@ -1,9 +1,13 @@
 .pio
-.vscode/.browse.c_cpp.db*
+# .vscode/.browse.c_cpp.db*
-.vscode/c_cpp_properties.json
+# .vscode/c_cpp_properties.json
-.vscode/launch.json
+# .vscode/launch.json
-.vscode/ipch
+# .vscode/ipch
-MinMaxPhoto-r
+.vscode
+time
+MinMaxPhoto-r.ods
+serial
+*.drawio.bkp
 
 
 # Created by https://www.toptal.com/developers/gitignore/api/platformio,c++

include/README

@@ -0,0 +1,37 @@
+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the convention is to give header files names that end with `.h'.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

lib/README

@@ -0,0 +1,47 @@
+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into the executable file.
+
+The source code of each library should be placed in a separate directory
+("lib/your_library_name/[Code]").
+
+For example, see the structure of the following example libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional. for custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+Example contents of `src/main.c` using Foo and Bar:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+The PlatformIO Library Dependency Finder will find automatically dependent
+libraries by scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html
+

lib/sensor/led.cpp

@@ -0,0 +1,28 @@
+#include <Arduino.h>
+#include "led.h"
+
+Led::Led(uint8_t pin) : pin(pin), state(false) {
+}
+
+void Led::setup() {
+    pinMode(pin, OUTPUT);
+    state = false;
+}
+
+void Led::turnOn() {
+    digitalWrite(pin, HIGH);
+    state = true;
+}
+
+void Led::turnOff() {
+    digitalWrite(pin, LOW);
+    state = false;
+}
+
+void Led::toggle() {
+    if (state) {
+        turnOff();
+    } else {
+        turnOn();
+    }
+}

lib/sensor/led.h

@@ -0,0 +1,19 @@
+#ifndef LED_H
+#define LED_H
+
+#include <Arduino.h>
+
+class Led{
+public:
+    Led(uint8_t pin);
+    void setup();
+    void turnOn();
+    void turnOff();
+    void toggle();
+
+private:
+    uint8_t pin;
+    bool state;
+};
+
+#endif

lib/sensor/photoresistance_ohm_retrieval.cpp

@@ -0,0 +1,28 @@
+#include <Arduino.h>
+#include "photoresistance_ohm_retrieval.h"
+
+
+SensorOhm::SensorOhm(uint8_t pin_analog_read, float vcc, int32_t rFixed, float current)
+: pin_analog_read(pin_analog_read), vcc(vcc), rFixed(rFixed), current(current) {
+    if (vcc > mega2560_max_vcc){
+        Serial.println("FATAL: VCC too high !");
+        while (true); // bloque le programme
+    }
+    if (current > mega2560_max_current){
+        Serial.println("FATAL: Intensity too high !");
+        while (true);
+    }
+}
+
+void SensorOhm::setup() {
+    pinMode(pin_analog_read, INPUT);
+}
+
+int32_t SensorOhm::readResistance() {
+    // The circuit is connected in series.
+    // The resistance of the photoresistor can be calculated using the voltage divider circuits.
+    int raw = analogRead(pin_analog_read);
+    float vOut = (raw / 1023.0f) * vcc;
+    int32_t res = (int32_t)(rFixed * (vcc - vOut)) / vOut;
+    return res;
+}

lib/sensor/photoresistance_ohm_retrieval.h

@@ -0,0 +1,27 @@
+#ifndef PHOTORESISANCE_OHM_RETRIEVAL_H
+#define PHOTORESISANCE_OHM_RETRIEVAL_H
+
+#include <Arduino.h>
+
+
+const float mega2560_max_current = 50e-3;  // 50 mA
+const float mega2560_max_vcc = 5.5;
+const int32_t r_voltage_divider = 330e3;
+
+// SensorOhm calculate the value of the photoresistor with the voltage divider circuits 
+class SensorOhm {
+public:
+    SensorOhm(uint8_t pin_analog_read = A0, float vcc = mega2560_max_vcc, int32_t rFixed = r_voltage_divider, float current = mega2560_max_current);
+
+    void setup();
+    int32_t readResistance();
+
+private:
+
+    uint8_t pin_analog_read;
+    float vcc;
+    int32_t rFixed;
+    float current;
+};
+
+#endif

lib/sensor/sensormanager.cpp

@@ -0,0 +1,121 @@
+#include <Arduino.h>
+#include "sensormanager.h"
+
+
+SensorManager::SensorManager(){}
+
+SensorManager::~SensorManager(){}
+
+/**
+* @brief setup
+* * init manager and photorésistor objects
+* 
+* * @param nb_sensor @c uint8_t number of photoresistor
+* @param analog_in @c uint8_t* array of pin identificators
+* @return @c void
+*/
+void SensorManager::setup(uint8_t nb_sensor, uint8_t *analog_in){
+    nbPhotoSensor = nb_sensor;
+    for(uint8_t i = 0; i < nbPhotoSensor; i++){
+        SensorOhm tmp(analog_in[i]);
+        sensor_list[i] = tmp;
+        sensor_list[i].setup();
+        // init max and min array
+        if (unsigned_int){
+            min[i]= 2e9;
+            max[i]= 0;
+        }else{
+            min[i]= 2e9;
+            max[i]= -2e9;
+        }
+    }
+}
+
+/**
+* @brief get_resistance
+* * Get resistives values of photosensors
+* Warning res_tab 
+* * @param res_tab @c int32_t must be a local array pointer
+* @param tab_lenght @c uint8_t equal to or greater than the number of photo-res managed
+* @return @c void
+*/
+void SensorManager::get_resistances(int32_t* res_tab, uint8_t tab_lenght){
+    if (tab_lenght < nbPhotoSensor){
+        Serial.print("Error bad tab size");
+        return;
+    }
+
+    for (uint8_t i = 0; i < nbPhotoSensor; i++)
+    {
+        res_tab[i] = get_resistances_at(i);
+    }
+}
+
+void SensorManager::updateMinMax(uint8_t index, int32_t current_res) {
+    if(min[index] > current_res){
+        min[index] = current_res;
+    }
+    if(max[index] < current_res){
+        max[index] = current_res;
+    }
+}
+
+/**
+* @brief get_min_max
+* * Get highest and lowest resistives values of photosensors
+* Warning res_tab 
+* * @param min_res_tab_max_res_tab @c int32_t must be a local array pointer
+* @param tab_lenght @c uint8_t equal to or greater than the number of photo-res managed
+* @return @c void
+*/
+void SensorManager::get_min_max(int32_t* min_res_tab, int32_t* max_res_tab, uint8_t tab_lenght){
+    if (tab_lenght < nbPhotoSensor){
+        Serial.print("Error bad tab size");
+        return;
+    }
+
+    for (uint8_t i = 0; i < nbPhotoSensor; i++)
+    {
+        min_res_tab[i] = min[i];
+        max_res_tab[i] = max[i];
+    }
+}
+
+uint8_t SensorManager::get_nb_photores(){
+    return nbPhotoSensor;
+}
+
+void SensorManager::print_current_res(){
+    int32_t curr[nbPhotoSensor];
+    get_resistances(curr, nbPhotoSensor);
+
+    for (uint8_t i = 0; i < nbPhotoSensor; i++)
+    {
+        Serial.print("Photo-resistance n°");
+        Serial.print(i, DEC);
+        Serial.print(" : ");
+        Serial.print(curr[i], DEC);
+        Serial.print(" | ");
+    }
+    Serial.println();
+}
+
+void SensorManager::print_min_max_res(){
+    for (uint8_t i = 0; i < nbPhotoSensor; i++)
+    {
+        Serial.print("Photo-resistance n°");
+        Serial.print(i, DEC);
+        Serial.print(" : min = ");
+        Serial.print(min[i], DEC);
+        Serial.print(", max = ");
+        Serial.print(max[i], DEC);
+        Serial.print(" | ");
+    }
+    Serial.println();
+}
+
+int32_t SensorManager::get_resistances_at(uint8_t index){
+    int32_t tmp = sensor_list[index].readResistance();
+    updateMinMax(index, tmp);
+    return tmp;
+}

lib/sensor/sensormanager.h

@@ -0,0 +1,31 @@
+#ifndef SENSORMANAGER_H
+#define SENSORMANAGER_H
+
+#include <Arduino.h>
+#include "photoresistance_ohm_retrieval.h"
+
+class SensorManager
+{
+private:
+    static const uint8_t max_sensor = 10;
+    static const bool unsigned_int = 0;
+    uint8_t nbPhotoSensor;
+    SensorOhm sensor_list[max_sensor];
+    int32_t min[max_sensor], max[max_sensor];
+    
+
+public:
+    SensorManager();
+    ~SensorManager();
+
+    void setup(uint8_t nb_sensor, uint8_t *analog_in);
+    uint8_t get_nb_photores();
+    int32_t get_resistances_at(uint8_t index);
+    void get_resistances(int32_t* res_tab, uint8_t tab_lenght);
+    void get_min_max(int32_t* min_res_tab, int32_t* max_res_tab, uint8_t tab_lenght);
+    void updateMinMax(uint8_t index, int32_t current_res);
+    void print_current_res();
+    void print_min_max_res();
+};
+
+#endif

lib/storage/storage_interface.cpp

@@ -0,0 +1,263 @@
+#include "storage_interface.h"
+#include <Arduino.h>
+#include <EEPROM.h>
+
+
+// Manual implements of EEPROM.put() for few uint type
+
+uint16_t inline read_eeprom_uint16(uint8_t idx){
+    uint8_t tmp;
+    tmp = EEPROM.read(idx); // read high byte
+    return EEPROM.read(idx + 1) | (tmp << 8); // read low byte
+}
+
+void inline write_eeprom_uint16(uint8_t idx, uint16_t value){
+    EEPROM.write(idx, value >> 8); // write high byte
+    EEPROM.write(idx + 1, value & 0xFF); // write low byte
+}
+
+uint32_t inline read_eeprom_uint32(uint8_t idx) {
+    uint32_t result = 0;
+    
+    // Byte 1 (High level : MSB)
+    result |= (uint32_t)EEPROM.read(idx) << 24; 
+    
+    // Byte 2
+    result |= (uint32_t)EEPROM.read(idx + 1) << 16;
+    
+    // Byte 3
+    result |= (uint32_t)EEPROM.read(idx + 2) << 8;
+    
+    // Byte 4 (Low level : LSB)
+    result |= (uint32_t)EEPROM.read(idx + 3); 
+    
+    return result;
+}
+
+void inline write_eeprom_uint32(uint8_t idx, uint32_t value) {
+    
+    // Byte 1 (High level : MSB)
+    EEPROM.write(idx, (uint8_t)(value >> 24)); 
+    
+    // Byte 2
+    EEPROM.write(idx + 1, (uint8_t)(value >> 16));
+    
+    // Byte 3
+    EEPROM.write(idx + 2, (uint8_t)(value >> 8));
+    
+    // Byte 4 (Low level : LSB)
+    EEPROM.write(idx + 3, (uint8_t)(value & 0xFF)); 
+}
+
+Storage_interface::Storage_interface(){}
+
+Storage_interface::~Storage_interface(){}
+
+void Storage_interface::clear_eeprom(){
+    for (uint16_t i = 0 ; i < EEPROM.length() ; i++) {
+        EEPROM.write(i, 0);
+    }
+}
+
+void Storage_interface::clear_eeprom_at(uint16_t idx){
+    for (uint16_t i = idx ; i < EEPROM.length() ; i++) {
+        EEPROM.write(i, 0);
+    }
+}
+
+// legacy function (don't finished and never tested)
+/*
+uint16_t get_nb_package_legacy(){
+    uint8_t flags, nb_photo_sensor, nb_temp_sensor, temp_size_t, photo_size_t, schedule, tmp, timestamp_size_t;
+    uint16_t nb_package = 0, nb_measure, start_package = 0, timestamp_sum_size, next_position;
+    bool timestamp;
+    flags = EEPROM.read(start_package);
+
+    while ((flags & 0b1) != 0){
+        nb_package++;
+        nb_photo_sensor = EEPROM.read(start_package + OFFSET_NB_PHOTO_SENSOR);
+        photo_size_t = EEPROM.read(start_package + OFFSET_PHOTO_MEASURES_SIZE);
+
+        nb_temp_sensor = EEPROM.read(start_package + OFFSET_NB_TEMP_SENSOR);
+        temp_size_t = EEPROM.read(start_package + OFFSET_TEMP_MEASURES_SIZE);
+
+        tmp = EEPROM.read(start_package + OFFSET_NB_TEMP_SENSOR); // read high byte
+        nb_measure = EEPROM.read(start_package + OFFSET_NB_TEMP_SENSOR + 1) | (tmp << 8); // read low byte
+
+        timestamp = false;
+        timestamp_size_t = EEPROM.read(start_package + OFFSET_timestamp_SIZE);
+        if ((flags & 0b001) != 0 ){
+            timestamp = true;
+            schedule = EEPROM.read(start_package + OFFSET_MEASURES_SCH);
+            timestamp_sum_size = (nb_measure/schedule) * timestamp_size_t;
+        }else if ((flags & 0b01) != 0){
+            timestamp = true;
+            timestamp_sum_size = nb_measure * timestamp_size_t;
+        }else{
+            timestamp_sum_size = 0;
+        }        
+    }
+    return nb_package;
+}*/
+
+/**
+* @brief get_last_header_nbpackage
+* * 
+* 
+* * @param last_header_idx @c uint16_t EEPROM index of the last header
+* @return @c uint16_t EEPROM stored package number
+*/
+uint16_t Storage_interface::get_last_header_nbpackage(uint16_t* last_header_idx){
+    uint8_t flags;
+    uint16_t start_package = 0, nb_package = 0;
+    *last_header_idx = 0;
+    flags = EEPROM.read(start_package);
+
+    while ((flags & 0b1) != 0){
+        nb_package++;
+        *last_header_idx = start_package;
+        start_package = read_eeprom_uint16(start_package + OFFSET_NEXT_PACKAGE);
+        flags = EEPROM.read(start_package);
+        nb_package++;
+    }
+    return nb_package;
+}
+
+// factorise reused code implementation and keep level acces
+uint16_t Storage_interface::get_nb_package(){
+    uint16_t pointer;
+    return get_last_header_nbpackage(&pointer);
+}
+
+
+void Storage_interface::get_store_struct(uint16_t offset, bool* timestamp, bool* is_final_set, bool* photo_sensor, bool* temp_sensor, uint8_t* timestamp_schedule, uint8_t* nb_photo_sensor, uint8_t* nb_temp_sensor, uint8_t* photo_size, uint8_t* temp_size, uint16_t* p_next_package, uint16_t* nb_measures){
+    uint8_t flags;
+    flags = EEPROM.read(offset);
+
+    // Checking there if a struct is possibly at the index 
+    if ((flags & 0b1) == 0){
+        Serial.println("Missing struct index or bad index");
+        return;
+    }
+
+    // timestamps reads
+    *timestamp = false;
+    if ((flags & 0b001) != 0 ){
+        *timestamp = true;
+        *timestamp_schedule = EEPROM.read(offset + OFFSET_MEASURES_SCH);
+    }
+    *timestamp_schedule = 0;
+    if (flags & 0b01){
+        *timestamp = true;
+        if (EEPROM.read(offset + OFFSET_MEASURES_SCH) != 0)
+            Serial.println("Incoherent timestamp parameter in the header.");
+    }
+
+    // photo res reads
+    *photo_sensor = false;
+    if (flags & 0b0001){
+        *photo_sensor = true;
+        *nb_photo_sensor = EEPROM.read(offset + OFFSET_NB_PHOTO_SENSOR);
+    }
+
+    // temp res reads
+    *temp_sensor = false;
+    if (flags & 0b00001){
+        *temp_sensor = true;
+        *nb_temp_sensor = EEPROM.read(offset + OFFSET_NB_TEMP_SENSOR);
+    }
+
+    // gather the index of the next package in the EEPROM
+    *p_next_package = read_eeprom_uint16(offset + OFFSET_NEXT_PACKAGE);
+
+    // gather the number of measures
+    *nb_measures = read_eeprom_uint16(offset + OFFSET_NB_TEMP_SENSOR);
+}
+
+void Storage_interface::set_store_struct(uint16_t offset, bool timestamp, bool is_final_set, bool photo_sensor, bool temp_sensor, uint8_t timestamp_schedule, uint8_t nb_photo_sensor, uint8_t nb_temp_sensor, uint8_t photo_size, uint8_t temp_size){
+    uint8_t flags = 0;
+
+    // Existing package flag for function package searcher  
+    flags = flags | 0b10000000;
+
+    // Timestamp init struct
+    if(timestamp_schedule != 0){
+        flags = flags | 0b00100000;
+        EEPROM.write(offset + OFFSET_MEASURES_SCH, timestamp_schedule);
+        if(!timestamp)
+            Serial.println("Bad timestamp parameter for header writer.");
+    }else{
+        EEPROM.write(offset + OFFSET_MEASURES_SCH, 0);
+        if (timestamp)
+            flags = flags | 0b01000000;
+    }
+
+    // Sensor part
+    if (photo_sensor){
+        flags = flags | 0b00010000;
+        EEPROM.write(offset + OFFSET_NB_PHOTO_SENSOR, nb_photo_sensor);
+    }else{
+        EEPROM.write(offset + OFFSET_NB_PHOTO_SENSOR, 0);
+        if (nb_photo_sensor != 0)
+            Serial.println("Bad photo sensor parameter for header writer.");
+    }
+
+    if (temp_sensor){
+        flags = flags | 0b00001000;
+        EEPROM.write(offset + OFFSET_NB_TEMP_SENSOR, nb_temp_sensor);
+    }else{
+        EEPROM.write(offset + OFFSET_NB_TEMP_SENSOR, 0);
+        if (nb_temp_sensor != 0)
+            Serial.println("Bad temperature sensor parameter for header writer.");
+    }
+        
+    // TODO Analyse if is_final_set just be remove from parameter
+    if (is_final_set){
+        flags = flags | 0b00000100;
+    }
+
+    // uint16_t next package pointer set at 0
+    write_eeprom_uint16(offset + OFFSET_NEXT_PACKAGE, offset + OFFSET_START_DATA_MEASURES);
+
+    // set number of measures to 0
+    write_eeprom_uint16(offset + OFFSET_NB_MEASURES, 0);
+
+    // write flags header
+    EEPROM.write(offset , flags);
+
+    clear_eeprom_at(offset + OFFSET_START_DATA_MEASURES);
+}
+
+void Storage_interface::add_last_package(bool timestamp, bool is_final_set, bool photo_sensor, bool temp_sensor, uint8_t timestamp_schedule, uint8_t nb_photo_sensor, uint8_t nb_temp_sensor, uint8_t photo_size, uint8_t temp_size, uint16_t nb_measures){
+    uint16_t p_last_header, free_space;
+    uint8_t flags;
+
+    get_last_header_nbpackage(&p_last_header);
+    flags = EEPROM.read(p_last_header);
+
+    // change is_last_package flag 
+    flags = flags & 0b11111011;
+    EEPROM.write(p_last_header , flags);
+
+    free_space = EEPROM.read(p_last_header + OFFSET_NEXT_PACKAGE);
+    set_store_struct(free_space, timestamp, is_final_set, photo_sensor, temp_sensor, timestamp_schedule, nb_photo_sensor, nb_temp_sensor, photo_size, temp_size);
+}
+
+// Dont check if the stored measure structure match with the header
+void Storage_interface::add_measure(uint8_t* photo_values, uint8_t* temp_values, uint32_t timestamp, uint8_t nb_photo, uint8_t nb_temp){
+    uint16_t p_last_header, free_space, idx;
+
+    get_last_header_nbpackage(&p_last_header);
+
+    free_space = EEPROM.read(p_last_header + OFFSET_NEXT_PACKAGE);
+    EEPROM.write(p_last_header + OFFSET_NB_MEASURES, EEPROM.read(p_last_header + OFFSET_NB_MEASURES) + 1);
+
+    EEPROM.put(free_space, timestamp);
+    idx = p_last_header + int32_size;
+    for(int i = 0; i < nb_photo; i++, idx += int8_size){
+        EEPROM.put(idx, photo_values[i]);
+    }
+    for(int i = 0; i < nb_temp; i++, idx += int8_size){
+        EEPROM.put(idx, temp_values[i]);
+    }
+}

lib/storage/storage_interface.h

@@ -0,0 +1,53 @@
+#ifndef STORAGE_INTERFACE_H
+#define STORAGE_INTERFACE_H
+#include <Arduino.h>
+#include <EEPROM.h>
+
+// based on https://docs.arduino.cc/learn/programming/eeprom-guide/
+
+class Storage_interface
+{
+private:
+
+    static constexpr uint8_t OFFSET_MEASURES_SCH = 1, OFFSET_NB_PHOTO_SENSOR = 2, OFFSET_NB_TEMP_SENSOR = 3, OFFSET_PHOTO_MEASURES_SIZE = 4, OFFSET_TEMP_MEASURES_SIZE = 5, OFFSET_NB_MEASURES = 6, OFFSET_NEXT_PACKAGE = 8, OFFSET_START_DATA_MEASURES = 10; // unit in byte 
+    static constexpr uint8_t int32_size = sizeof(int32_t), int16_size = sizeof(int16_t), int8_size = sizeof(int8_t);
+    static constexpr uint16_t MEGA_2560_EEPROM_SIZE = 4096;
+
+    void clear_eeprom();
+    void clear_eeprom_at(uint16_t idx);
+
+    void get_store_struct(uint16_t offset, bool* timestamp, bool* is_final_set, bool* photo_sensor, bool* temp_sensor, uint8_t* timestamp_schedule, uint8_t* nb_photo_sensor, uint8_t* nb_temp_sensor, uint8_t* photo_size, uint8_t* temp_size, uint16_t* p_next_package, uint16_t* nb_measures);
+    void set_store_struct(uint16_t offset, bool timestamp, bool is_final_set, bool photo_sensor, bool temp_sensor, uint8_t timestamp_schedule, uint8_t nb_photo_sensor, uint8_t nb_temp_sensor, uint8_t photo_size, uint8_t temp_size);
+
+    uint16_t get_last_header_nbpackage(uint16_t* last_header_idx);
+
+public:
+
+    uint16_t get_nb_package();
+    void add_last_package(bool timestamp, bool is_final_set, bool photo_sensor, bool temp_sensor, uint8_t timestamp_schedule, uint8_t nb_photo_sensor, uint8_t nb_temp_sensor, uint8_t photo_size, uint8_t temp_size, uint16_t nb_measures);
+    void add_measure(uint8_t* photo_values, uint8_t* temp_values, uint32_t timestamp, uint8_t nb_photo, uint8_t nb_temp);
+    Storage_interface();
+    ~Storage_interface();
+
+    // Dont check if the stored measure structure match with the header
+    template< typename T, typename TT>
+    void add_measure(T* photo_values, TT* temp_values, uint32_t timestamp, uint8_t nb_photo, uint8_t nb_temp){
+        uint16_t p_last_header, free_space, idx;
+
+        get_last_header_nbpackage(&p_last_header);
+
+        free_space = EEPROM.read(p_last_header + OFFSET_NEXT_PACKAGE);
+        EEPROM.write(p_last_header + OFFSET_NB_MEASURES, EEPROM.read(p_last_header + OFFSET_NB_MEASURES) + 1);
+
+        EEPROM.put(free_space, timestamp);
+        idx = p_last_header + int32_size;
+        for(int i = 0; i < nb_photo; i++, idx += sizeof(T)){
+            EEPROM.put(idx, photo_values[i]);
+        }
+        for(int i = 0; i < nb_temp; i++, idx += sizeof(TT)){
+            EEPROM.put(idx, temp_values[i]);
+        }
+    }
+};
+
+#endif

lib/traitement/traitement.cpp

@@ -0,0 +1,23 @@
+#include <Arduino.h>
+#include "traitement.h"
+
+Traitement::Traitement(){}
+
+Traitement::~Traitement(){}
+
+
+/**
+* @brief map_r
+* * Normalise resistance value 
+* 
+* * @param min_res_tab @c int32_t*
+* @param max_res_tab @c int32_t*
+* @param res_values @c int32_t*
+* @param result @c int32_t*
+* @param tab_lenght @c uint8_t
+*/
+void Traitement::map_r(int32_t* min_res_tab, int32_t* max_res_tab, int32_t* res_values, int16_t* result, uint8_t tab_lenght){
+    for(int i = 0; i < tab_lenght; i++){
+        result[i] = map(res_values[i], min_res_tab[i], max_res_tab[i], min_out_norm, max_out_norm);
+    }
+}

lib/traitement/traitement.h

@@ -0,0 +1,19 @@
+#ifndef TRAITEMENT_H
+#define TRAITEMENT_H
+
+#include <Arduino.h>
+
+class Traitement
+{
+private:
+const uint8_t min_out_norm = 0, max_out_norm = 255;
+    
+public:
+    Traitement();
+    ~Traitement();
+
+    void map_r(int32_t* min_res_tab, int32_t* max_res_tab, int32_t* res_values, int16_t* result, uint8_t tab_lenght);
+
+};
+
+#endif

platformio.ini

@@ -0,0 +1,22 @@
+; 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:megaADK]
+platform = atmelavr
+board = megaADK
+framework = arduino
+test_framework = unity
+build_flags = -std=gnu++17
+lib_deps = 
+	northernwidget/DS3231@^1.1.2
+    arduino-libraries/Ethernet
+    robtillaart/CRC
+
+lib_ldf_mode = deep+

src/Notes.txt

@@ -0,0 +1,24 @@
+40 en moyenne
+700 grand max avec lumière téléphone
+téléphoen 100 à 150 lumen
+-> soit environ 100 lux a 1m contre 100 000 lux en plein jours sur 1m²
+résistance 120 ohm
+
+
+0 a 1024 en analogique
+
+
+
+DateTime of RTC:        2025-11-21 10:46:8 |  Temp of RTC:        24.0000
+Photo-resistance n°0 : 620 | Photo-resistance n°1 : 686 | Photo-resistance n°2 : 854 | Photo-resistance n°3 : 653 | Photo-resistance n°4 : 1058 | Photo-resistance n°5 : 686 | 
+Photo-resistance n°0 : min = 128, max = 2062273 | Photo-resistance n°1 : min = 160, max = 5554006 | Photo-resistance n°2 : min = 193, max = 784809 | Photo-resistance n°3 : min = 96, max = 4755895 | Photo-resistance n°4 : min = 323, max = 1939035 | Photo-resistance n°5 : min = 96, max = 289546 | 
+
+
+DateTime of RTC:        2025-11-21 10:46:10 |  Temp of RTC:        24.0000
+Photo-resistance n°0 : 620 | Photo-resistance n°1 : 686 | Photo-resistance n°2 : 888 | Photo-resistance n°3 : 653 | Photo-resistance n°4 : 1092 | Photo-resistance n°5 : 720 | 
+Photo-resistance n°0 : min = 128, max = 2062273 | Photo-resistance n°1 : min = 160, max = 5554006 | Photo-resistance n°2 : min = 193, max = 784809 | Photo-resistance n°3 : min = 96, max = 4755895 | Photo-resistance n°4 : min = 323, max = 1939035 | Photo-resistance n°5 : min = 96, max = 289546 | 
+
+
+DateTime of RTC:        2025-11-21 10:46:13 |  Temp of RTC:        24.0000
+Photo-resistance n°0 : 620 | Photo-resistance n°1 : 720 | Photo-resistance n°2 : 888 | Photo-resistance n°3 : 653 | Photo-resistance n°4 : 1092 | Photo-resistance n°5 : 720 | 
+Photo-resistance n°0 : min = 128, max = 2062273 | Photo-resistance n°1 : min = 160, max = 5554006 | Photo-resistance n°2 : min = 193, max = 784809 | Photo-resistance n°3 : min = 96, max = 4755895 | Photo-resistance n°4 : min = 323, max = 1939035 | Photo-resistance n°5 : min = 96, max = 289546 |

src/Robot_Go_West.code-workspace

@@ -0,0 +1,9 @@
+{
+	"folders": [
+		{
+			"name": "Robot_Go_West",
+			"path": ".."
+		}
+	],
+	"settings": {}
+}

src/main.cpp

@@ -0,0 +1,108 @@
+#include <Arduino.h>
+#include <Wire.h>
+#include <DS3231.h>
+
+#include "photoresistance_ohm_retrieval.h"
+#include "myFunction.h"
+#include "sensormanager.h"
+#include "traitement.h"
+#include "storage_interface.h"
+
+int ledPin = 2, decTemp = 4; // nb decimal temperature printing
+const int nbPhotoSensor = 6;
+uint8_t analogPin [nbPhotoSensor] = {A0, A1, A2 ,A3 ,A5 ,A6};
+int32_t min_res [nbPhotoSensor] = {128, 160, 193, 96, 323, 96};
+int32_t max_res [nbPhotoSensor] = {2062273, 5554006, 784809, 4755895, 1939035, 289546};
+bool winter = 1;
+
+SensorOhm test[nbPhotoSensor];
+SensorManager s_manager;
+Traitement tr;
+
+RTClib myRTC;
+DS3231 Clock;
+
+// void setup() {
+//   Wire.begin();
+//   Serial.begin(9600);
+//   Serial.println("\nScanning I2C bus...");
+
+//   for (byte addr = 1; addr < 127; addr++) {
+//     Wire.beginTransmission(addr);
+//     if (Wire.endTransmission() == 0) {
+//       Serial.print("I2C device found at address 0x");
+//       Serial.println(addr, HEX);
+//     }
+//   }
+//   Serial.println("Scan complete.");
+//       constexpr time_t tstmp {1660644000UL};
+
+//     Clock.setEpoch(tstmp, false);
+//     // set to 24h
+//     Clock.setClockMode(false);
+// }
+
+void setup() {
+    Wire.begin();
+    Serial.begin(9600);
+    //pinMode(ledPin, OUTPUT);
+
+    s_manager.setup(nbPhotoSensor, analogPin);
+}
+
+void loop() {
+    DateTime now;
+
+    if (Serial.available()) {
+        unsigned long epoch = Serial.parseInt();  // read epoch
+        if (epoch > 1000000000UL) {               // sanity check
+            // summer or winter time
+            if (winter == 1) {
+                epoch += 3600;
+            }
+            Clock.setEpoch(epoch);
+            Serial.print("RTC mis à jour avec epoch: ");
+            Serial.println(epoch);
+        }
+        while (Serial.available()) Serial.read(); // clean buffer
+
+        // Just for verification of DS3231 Data
+        // check now the data from ESP8266 and DS3231
+        // get year
+        bool century = false;
+        bool h12Flag;
+        bool pmFlag;
+        now = myRTC.now();
+        Serial.print("\n\n");
+        Serial.print(" DateTime of DS3231:     ");
+        Serial.print(Clock.getYear(), DEC);
+        Serial.print("-");
+        Serial.print(Clock.getMonth(century), DEC);
+        Serial.print("-");
+        Serial.print(Clock.getDate(), DEC);
+        Serial.print(" ");
+        Serial.print(Clock.getHour(h12Flag, pmFlag), DEC);
+        Serial.print(":");
+        Serial.print(Clock.getMinute(), DEC);
+        Serial.print(":");
+        Serial.print(Clock.getSecond(), DEC);
+        Serial.print("  -  weekday ");
+        Serial.print(Clock.getDoW(), DEC);
+        Serial.println();
+    }
+
+    printDate(Clock, decTemp);
+
+    s_manager.print_current_res();
+    s_manager.print_min_max_res();
+
+    int32_t res_array[nbPhotoSensor]/*, min_array[nbPhotoSensor], max_array[nbPhotoSensor]*/;
+    int16_t result[nbPhotoSensor];
+    s_manager.get_resistances(res_array, nbPhotoSensor);
+
+    tr.map_r(min_res, max_res, res_array, result, nbPhotoSensor);
+    print_named_tab(result, nbPhotoSensor, "int32_t normalised",(uint8_t) 18);
+
+
+    delay(2000);
+}

src/myFunction.cpp

@@ -0,0 +1,45 @@
+#include <Arduino.h>
+#include <Wire.h>
+#include <DS3231.h>
+
+#include "myFunction.h"
+
+void printDate(DS3231 Clock, int8_t decTemp){
+    // RTClib myRTC;
+
+    // DateTime now = myRTC.now();
+    
+    // Serial.print(now.year(), DEC);
+    // Serial.print('/');
+    // Serial.print(now.month(), DEC);
+    // Serial.print('/');
+    // Serial.print(now.day(), DEC);
+    // Serial.print(' ');
+    // Serial.print(now.hour(), DEC);
+    // Serial.print(':');
+    // Serial.print(now.minute(), DEC);
+    // Serial.print(':');
+    // Serial.print(now.second(), DEC);
+    // Serial.println();
+
+
+    float temp = Clock.getTemperature();
+    RTClib myRTC;
+    DateTime now = myRTC.now();
+
+    Serial.print("\n\n");
+    Serial.print("DateTime of RTC:        ");
+    Serial.print(now.year(), DEC);
+    Serial.print("-");
+    Serial.print(now.month(), DEC);
+    Serial.print("-");
+    Serial.print(now.day(), DEC);
+    Serial.print(" ");
+    Serial.print(now.hour(), DEC);
+    Serial.print(":");
+    Serial.print(now.minute(), DEC);
+    Serial.print(":");
+    Serial.print(now.second(), DEC);
+    Serial.print(" |  Temp of RTC:        ");
+    Serial.println(temp, decTemp);
+}

src/myFunction.h

@@ -0,0 +1,23 @@
+#ifndef MYFUNCTION_H
+#define MYFUNCTION_H
+
+#include <Arduino.h>
+#include <Wire.h>
+#include <DS3231.h>
+
+void printDate(DS3231 Clock, int8_t decTemp);
+
+
+template <typename T>
+void print_named_tab(T v_array, uint8_t array_size, const char *tab_name, uint8_t size_tab_name) {
+    char buffer [32];
+    
+    for(int i = 0; i < array_size; i++){
+        // snprintf(buffer, sizeof(buffer), tab_name, " n° "), i, " : ", v_array[i];
+        snprintf(buffer, sizeof(buffer), "%s n° %d : ", tab_name, i);
+        Serial.print(buffer);
+        Serial.print(v_array[i], DEC);
+        Serial.println();
+    }
+}
+#endif

storage_structure.drawio

@@ -0,0 +1,226 @@
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test/EEPROM_test_struct.cpp

@@ -0,0 +1,12 @@
+#include <Arduino.h>
+#include <unity.h>
+#include "storage_interface.h"
+
+void setUp(void)
+{
+    Serial.begin(9600);
+}
+
+void test_put_struct(){
+    
+}

test/README

@@ -0,0 +1,11 @@
+
+This directory is intended for PlatformIO Test Runner and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html

time.py

@@ -0,0 +1,12 @@
+import serial
+import time
+
+# Remplace par ton port Arduino
+ser = serial.Serial('/dev/ttyACM0', 9600)
+time.sleep(2)  # attendre que l’Arduino démarre
+
+epoch = int(time.time())  # secondes depuis 1970
+ser.write(f"{epoch}\n".encode())  # envoie sous forme texte, terminé par \n
+
+ser.close()
+print(f"Envoyé epoch: {epoch}")