//MEALBOX CODE
//by: Instructor: Miriam Choi
// Student: Ryan Sull
//****************MADE BY TEAM MEALBOX**************************
//Libraries: download them in <Sketch>>Include Libraries>>Manage Libraries> or Ctrl+Shift+I
#include <Adafruit_NeoPixel.h> //Neopixel LED Library
#define neopin 9 //Neopixel is connected to pin D9
#define NUMPIXELS 1 //How many leds we are used.
// When we setup the NeoPixel library, we tell it how many pixels, and which pin to use to send signals.
// Note that for older NeoPixel strips you might need to change the third parameter--see the strandtest
// example for more information on possible values.
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, neopin, NEO_GRB + NEO_KHZ800);
#include <DHT.h> //Temp,Humidity sensor Library
#define DHTPIN 3 //Temp,Humidity sensor is connected to pin D3
#define DHTTYPE DHT11 //Temp,Humidity Sensor type
DHT dht(DHTPIN, DHTTYPE); //// Initialize DHT sensor for normal 16mhz Arduino
#ifdef __AVR__
#include <avr/power.h>
#endif
int delayval = 400; // delay for 400milli second
int FAN = A3 ; // the fan relay switch is connected to pin A3
void setup()
{
Serial.begin(9600);
Serial.println("MEALBOX START!"); // this will show up in your serial monitor if you are connected to your computer
dht.begin();
}
void loop()
{
pixels.begin(); // This initializes the NeoPixel library.
//Pins output or input setting
pinMode(9, OUTPUT);
pinMode(A3, OUTPUT);
float h = dht.readHumidity();
float t = dht.readTemperature();
if (isnan(h) || isnan(t)) {
Serial.println("Failed to read from DHT sensor!"); // this will show up if your connection to dht is wrong
return;
Serial.print("Humidity: ");
Serial.print(h);
Serial.print(" %\\t");
Serial.print("Temperature: ");
Serial.print(t);
Serial.println(" *C ");
} // the texts above will show up in your Serial monitor if your arduino is connected to your computer.
if (h <= 30) {
Serial.println("Too dry!");
// pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
digitalWrite(FAN, LOW); //fan is off
for(int i=0;i<NUMPIXELS;i++){
pixels.setPixelColor(i, pixels.Color(255,0,0)); // RED.
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
}
}
else if ( 40 <= h <= 60) {
Serial.println("Perfection");
digitalWrite(FAN, LOW); // fan is off
for(int i=0;i<NUMPIXELS;i++){
pixels.setPixelColor(i, pixels.Color(0,0,255)); // Green.
pixels.show(); // This sends the updated pixel color to the hardware.
}
}
else if ( h >= 70)
Serial.println("Too Humid");
digitalWrite(FAN, HIGH); // fan is on
for(int i=0;i<NUMPIXELS;i++){
// pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
pixels.setPixelColor(i, pixels.Color(0,255,0)); // BLUE
pixels.show(); // This sends the updated pixel color to the hardware.
delay(delayval); // Delay for a period of time (in milliseconds).
}
}
\
__
MQTT settings and whatnot
Install Mosquitto Broker Raspberry Pi | Random Nerd Tutorials
milliam@boldlab
mosquitto ID : MEALBOX
Password : BoldLab123!
hostname -I
192.168.219.108
When connecting to power, make sure that the switch is towards the blue dot.
After connecting to power, wait 10 seconds for the board to connect to WIFI and slide the switch to red
//MEALBOX_CAM_MQTT CODE
//by: Instructor: Miriam Choi
// Student: Ryan Sull
//****************MADE BY TEAM MEALBOX**************************
#include "DHT.h"
#include <WiFi.h>
extern "C" {
#include "freertos/FreeRTOS.h"
#include "freertos/timers.h"
}
#include <AsyncMqttClient.h>
#define CAMERA_MODEL_AI_THINKER
#include "esp_camera.h"
#include "camera_pins.h" // Assuming this file contains camera pin definitions
#define WIFI_SSID "U+Net7CB0"
#define WIFI_PASSWORD "BOLDLAB123!"
// Raspberry Pi Mosquitto MQTT Broker
#define MQTT_HOST IPAddress(13, 125, 172, 104)
// For a cloud MQTT broker, type the domain name
//#define MQTT_HOST "example.com"
#define MQTT_PORT 1883
#define MQTT_PUB_TEMP "esp32/dht/temperature"
#define MQTT_PUB_HUM "esp32/dht/humidity"
#define MQTT_PUB_FAN_STATUS "esp32/fan/status"
#define MQTT_PUB_CAMERA "esp32/camera/image"
#define DHTPIN 2
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
#define RELAY_PIN 14 // Pin connected to the relay
float temp;
float hum;
bool fanStatus = false;
AsyncMqttClient mqttClient;
TimerHandle_t mqttReconnectTimer;
TimerHandle_t wifiReconnectTimer;
unsigned long previousTempMillis = 0;
unsigned long previousImageMillis = 0;
const long tempInterval = 10000; // 10 seconds in milliseconds
const long imageInterval = 10000; // 10 minutes in milliseconds
void connectToWifi() {
Serial.println("Connecting to Wi-Fi...");
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
}
void connectToMqtt() {
Serial.println("Connecting to MQTT...");
mqttClient.connect();
}
void WiFiEvent(WiFiEvent_t event) {
Serial.printf("[WiFi-event] event: %d\\n", event);
switch(event) {
case SYSTEM_EVENT_STA_GOT_IP:
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
connectToMqtt();
break;
case SYSTEM_EVENT_STA_DISCONNECTED:
Serial.println("WiFi lost connection");
xTimerStop(mqttReconnectTimer, 0);
xTimerStart(wifiReconnectTimer, 0);
break;
}
}
void onMqttConnect(bool sessionPresent) {
Serial.println("Connected to MQTT.");
Serial.print("Session present: ");
Serial.println(sessionPresent);
}
void onMqttDisconnect(AsyncMqttClientDisconnectReason reason) {
Serial.println("Disconnected from MQTT.");
if (WiFi.isConnected()) {
xTimerStart(mqttReconnectTimer, 0);
}
}
void onMqttPublish(uint16_t packetId) {
Serial.print("Publish acknowledged.");
Serial.print(" packetId: ");
Serial.println(packetId);
}
void setup() {
Serial.begin(115200);
Serial.println();
pinMode(RELAY_PIN, OUTPUT);
digitalWrite(RELAY_PIN, LOW);
dht.begin();
mqttReconnectTimer = xTimerCreate("mqttTimer", pdMS_TO_TICKS(2000), pdFALSE, (void*)0, reinterpret_cast<TimerCallbackFunction_t>(connectToMqtt));
wifiReconnectTimer = xTimerCreate("wifiTimer", pdMS_TO_TICKS(2000), pdFALSE, (void*)0, reinterpret_cast<TimerCallbackFunction_t>(connectToWifi));
WiFi.onEvent(WiFiEvent);
mqttClient.onConnect(onMqttConnect);
mqttClient.onDisconnect(onMqttDisconnect);
mqttClient.onPublish(onMqttPublish);
mqttClient.setServer(MQTT_HOST, MQTT_PORT);
connectToWifi();
// Camera configuration
camera_config_t config;
config.ledc_channel = LEDC_CHANNEL_0;
config.ledc_timer = LEDC_TIMER_0;
config.pin_d0 = Y2_GPIO_NUM;
config.pin_d1 = Y3_GPIO_NUM;
config.pin_d2 = Y4_GPIO_NUM;
config.pin_d3 = Y5_GPIO_NUM;
config.pin_d4 = Y6_GPIO_NUM;
config.pin_d5 = Y7_GPIO_NUM;
config.pin_d6 = Y8_GPIO_NUM;
config.pin_d7 = Y9_GPIO_NUM;
config.pin_xclk = XCLK_GPIO_NUM;
config.pin_pclk = PCLK_GPIO_NUM;
config.pin_vsync = VSYNC_GPIO_NUM;
config.pin_href = HREF_GPIO_NUM;
config.pin_sscb_sda = SIOD_GPIO_NUM;
config.pin_sscb_scl = SIOC_GPIO_NUM;
config.pin_pwdn = PWDN_GPIO_NUM;
config.pin_reset = RESET_GPIO_NUM;
config.xclk_freq_hz = 20000000;
config.pixel_format = PIXFORMAT_JPEG;
if (psramFound()) {
config.frame_size = FRAMESIZE_UXGA;
config.jpeg_quality = 10;
config.fb_count = 2;
} else {
config.frame_size = FRAMESIZE_SVGA;
config.jpeg_quality = 12;
config.fb_count = 1;
}
// Camera init
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK) {
Serial.printf("Camera init failed with error 0x%x", err);
ESP.restart();
}
}
void loop() {
unsigned long currentMillis = millis();
// Publish DHT sensor data every 10 seconds
if (currentMillis - previousTempMillis >= tempInterval) {
previousTempMillis = currentMillis;
hum = dht.readHumidity();
temp = dht.readTemperature();
if (isnan(temp) || isnan(hum)) {
Serial.println(F("Failed to read from DHT sensor!"));
return;
}
uint16_t packetIdPub1 = mqttClient.publish(MQTT_PUB_TEMP, 1, true, String(temp).c_str());
Serial.printf("Publishing on topic %s at QoS 1, packetId: %i", MQTT_PUB_TEMP, packetIdPub1);
Serial.printf("Message: %.2f \\n", temp);
uint16_t packetIdPub2 = mqttClient.publish(MQTT_PUB_HUM, 1, true, String(hum).c_str());
Serial.printf("Publishing on topic %s at QoS 1, packetId %i: ", MQTT_PUB_HUM, packetIdPub2);
Serial.printf("Message: %.2f \\n", hum);
if (temp > 29) {
digitalWrite(RELAY_PIN, HIGH);
fanStatus = true;
} else {
digitalWrite(RELAY_PIN, LOW);
fanStatus = false;
}
uint16_t packetIdPubFan = mqttClient.publish(MQTT_PUB_FAN_STATUS, 1, true, fanStatus ? "on" : "off");
Serial.printf("Publishing fan status: %s, packetId: %i\\n", fanStatus ? "on" : "off", packetIdPubFan);
}
// Capture and publish image from camera every 10 minutes
if (currentMillis - previousImageMillis >= imageInterval) {
previousImageMillis = currentMillis;
captureAndPublishImage();
}
}
void captureAndPublishImage() {
camera_fb_t *fb = esp_camera_fb_get();
if (!fb) {
Serial.println("Failed to capture image");
return;
}
Serial.println("Image captured, size: " + String(fb->len));
uint16_t packetIdPubImage = mqttClient.publish(MQTT_PUB_CAMERA, 1, true, (const char*)fb->buf, fb->len);
Serial.printf("Published image, packetId: %i\\n", packetIdPubImage);
esp_camera_fb_return(fb);
}
// add as camera_pins.h
//we don't need all of this but in case the board is changed, or the camera setting is different, reference the correct board.
#if defined(CAMERA_MODEL_WROVER_KIT)
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 21
#define SIOD_GPIO_NUM 26
#define SIOC_GPIO_NUM 27
#define Y9_GPIO_NUM 35
#define Y8_GPIO_NUM 34
#define Y7_GPIO_NUM 39
#define Y6_GPIO_NUM 36
#define Y5_GPIO_NUM 19
#define Y4_GPIO_NUM 18
#define Y3_GPIO_NUM 5
#define Y2_GPIO_NUM 4
#define VSYNC_GPIO_NUM 25
#define HREF_GPIO_NUM 23
#define PCLK_GPIO_NUM 22
#elif defined(CAMERA_MODEL_ESP_EYE)
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 4
#define SIOD_GPIO_NUM 18
#define SIOC_GPIO_NUM 23
#define Y9_GPIO_NUM 36
#define Y8_GPIO_NUM 37
#define Y7_GPIO_NUM 38
#define Y6_GPIO_NUM 39
#define Y5_GPIO_NUM 35
#define Y4_GPIO_NUM 14
#define Y3_GPIO_NUM 13
#define Y2_GPIO_NUM 34
#define VSYNC_GPIO_NUM 5
#define HREF_GPIO_NUM 27
#define PCLK_GPIO_NUM 25
#define LED_GPIO_NUM 22
#elif defined(CAMERA_MODEL_M5STACK_PSRAM)
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM 15
#define XCLK_GPIO_NUM 27
#define SIOD_GPIO_NUM 25
#define SIOC_GPIO_NUM 23
#define Y9_GPIO_NUM 19
#define Y8_GPIO_NUM 36
#define Y7_GPIO_NUM 18
#define Y6_GPIO_NUM 39
#define Y5_GPIO_NUM 5
#define Y4_GPIO_NUM 34
#define Y3_GPIO_NUM 35
#define Y2_GPIO_NUM 32
#define VSYNC_GPIO_NUM 22
#define HREF_GPIO_NUM 26
#define PCLK_GPIO_NUM 21
#elif defined(CAMERA_MODEL_M5STACK_V2_PSRAM)
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM 15
#define XCLK_GPIO_NUM 27
#define SIOD_GPIO_NUM 22
#define SIOC_GPIO_NUM 23
#define Y9_GPIO_NUM 19
#define Y8_GPIO_NUM 36
#define Y7_GPIO_NUM 18
#define Y6_GPIO_NUM 39
#define Y5_GPIO_NUM 5
#define Y4_GPIO_NUM 34
#define Y3_GPIO_NUM 35
#define Y2_GPIO_NUM 32
#define VSYNC_GPIO_NUM 25
#define HREF_GPIO_NUM 26
#define PCLK_GPIO_NUM 21
#elif defined(CAMERA_MODEL_M5STACK_WIDE)
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM 15
#define XCLK_GPIO_NUM 27
#define SIOD_GPIO_NUM 22
#define SIOC_GPIO_NUM 23
#define Y9_GPIO_NUM 19
#define Y8_GPIO_NUM 36
#define Y7_GPIO_NUM 18
#define Y6_GPIO_NUM 39
#define Y5_GPIO_NUM 5
#define Y4_GPIO_NUM 34
#define Y3_GPIO_NUM 35
#define Y2_GPIO_NUM 32
#define VSYNC_GPIO_NUM 25
#define HREF_GPIO_NUM 26
#define PCLK_GPIO_NUM 21
#define LED_GPIO_NUM 2
#elif defined(CAMERA_MODEL_M5STACK_ESP32CAM)
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM 15
#define XCLK_GPIO_NUM 27
#define SIOD_GPIO_NUM 25
#define SIOC_GPIO_NUM 23
#define Y9_GPIO_NUM 19
#define Y8_GPIO_NUM 36
#define Y7_GPIO_NUM 18
#define Y6_GPIO_NUM 39
#define Y5_GPIO_NUM 5
#define Y4_GPIO_NUM 34
#define Y3_GPIO_NUM 35
#define Y2_GPIO_NUM 17
#define VSYNC_GPIO_NUM 22
#define HREF_GPIO_NUM 26
#define PCLK_GPIO_NUM 21
#elif defined(CAMERA_MODEL_M5STACK_UNITCAM)
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM 15
#define XCLK_GPIO_NUM 27
#define SIOD_GPIO_NUM 25
#define SIOC_GPIO_NUM 23
#define Y9_GPIO_NUM 19
#define Y8_GPIO_NUM 36
#define Y7_GPIO_NUM 18
#define Y6_GPIO_NUM 39
#define Y5_GPIO_NUM 5
#define Y4_GPIO_NUM 34
#define Y3_GPIO_NUM 35
#define Y2_GPIO_NUM 32
#define VSYNC_GPIO_NUM 22
#define HREF_GPIO_NUM 26
#define PCLK_GPIO_NUM 21
#elif defined(CAMERA_MODEL_AI_THINKER)
#define PWDN_GPIO_NUM 32
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 0
#define SIOD_GPIO_NUM 26
#define SIOC_GPIO_NUM 27
#define Y9_GPIO_NUM 35
#define Y8_GPIO_NUM 34
#define Y7_GPIO_NUM 39
#define Y6_GPIO_NUM 36
#define Y5_GPIO_NUM 21
#define Y4_GPIO_NUM 19
#define Y3_GPIO_NUM 18
#define Y2_GPIO_NUM 5
#define VSYNC_GPIO_NUM 25
#define HREF_GPIO_NUM 23
#define PCLK_GPIO_NUM 22
// 4 for flash led or 33 for normal led
#define LED_GPIO_NUM 4
#elif defined(CAMERA_MODEL_TTGO_T_JOURNAL)
#define PWDN_GPIO_NUM 0
#define RESET_GPIO_NUM 15
#define XCLK_GPIO_NUM 27
#define SIOD_GPIO_NUM 25
#define SIOC_GPIO_NUM 23
#define Y9_GPIO_NUM 19
#define Y8_GPIO_NUM 36
#define Y7_GPIO_NUM 18
#define Y6_GPIO_NUM 39
#define Y5_GPIO_NUM 5
#define Y4_GPIO_NUM 34
#define Y3_GPIO_NUM 35
#define Y2_GPIO_NUM 17
#define VSYNC_GPIO_NUM 22
#define HREF_GPIO_NUM 26
#define PCLK_GPIO_NUM 21
#elif defined(CAMERA_MODEL_XIAO_ESP32S3)
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 10
#define SIOD_GPIO_NUM 40
#define SIOC_GPIO_NUM 39
#define Y9_GPIO_NUM 48
#define Y8_GPIO_NUM 11
#define Y7_GPIO_NUM 12
#define Y6_GPIO_NUM 14
#define Y5_GPIO_NUM 16
#define Y4_GPIO_NUM 18
#define Y3_GPIO_NUM 17
#define Y2_GPIO_NUM 15
#define VSYNC_GPIO_NUM 38
#define HREF_GPIO_NUM 47
#define PCLK_GPIO_NUM 13
#elif defined(CAMERA_MODEL_ESP32_CAM_BOARD)
// The 18 pin header on the board has Y5 and Y3 swapped
#define USE_BOARD_HEADER 0
#define PWDN_GPIO_NUM 32
#define RESET_GPIO_NUM 33
#define XCLK_GPIO_NUM 4
#define SIOD_GPIO_NUM 18
#define SIOC_GPIO_NUM 23
#define Y9_GPIO_NUM 36
#define Y8_GPIO_NUM 19
#define Y7_GPIO_NUM 21
#define Y6_GPIO_NUM 39
#if USE_BOARD_HEADER
#define Y5_GPIO_NUM 13
#else
#define Y5_GPIO_NUM 35
#endif
#define Y4_GPIO_NUM 14
#if USE_BOARD_HEADER
#define Y3_GPIO_NUM 35
#else
#define Y3_GPIO_NUM 13
#endif
#define Y2_GPIO_NUM 34
#define VSYNC_GPIO_NUM 5
#define HREF_GPIO_NUM 27
#define PCLK_GPIO_NUM 25
#elif defined(CAMERA_MODEL_ESP32S3_CAM_LCD)
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 40
#define SIOD_GPIO_NUM 17
#define SIOC_GPIO_NUM 18
#define Y9_GPIO_NUM 39
#define Y8_GPIO_NUM 41
#define Y7_GPIO_NUM 42
#define Y6_GPIO_NUM 12
#define Y5_GPIO_NUM 3
#define Y4_GPIO_NUM 14
#define Y3_GPIO_NUM 47
#define Y2_GPIO_NUM 13
#define VSYNC_GPIO_NUM 21
#define HREF_GPIO_NUM 38
#define PCLK_GPIO_NUM 11
#elif defined(CAMERA_MODEL_ESP32S2_CAM_BOARD)
// The 18 pin header on the board has Y5 and Y3 swapped
#define USE_BOARD_HEADER 0
#define PWDN_GPIO_NUM 1
#define RESET_GPIO_NUM 2
#define XCLK_GPIO_NUM 42
#define SIOD_GPIO_NUM 41
#define SIOC_GPIO_NUM 18
#define Y9_GPIO_NUM 16
#define Y8_GPIO_NUM 39
#define Y7_GPIO_NUM 40
#define Y6_GPIO_NUM 15
#if USE_BOARD_HEADER
#define Y5_GPIO_NUM 12
#else
#define Y5_GPIO_NUM 13
#endif
#define Y4_GPIO_NUM 5
#if USE_BOARD_HEADER
#define Y3_GPIO_NUM 13
#else
#define Y3_GPIO_NUM 12
#endif
#define Y2_GPIO_NUM 14
#define VSYNC_GPIO_NUM 38
#define HREF_GPIO_NUM 4
#define PCLK_GPIO_NUM 3
#elif defined(CAMERA_MODEL_ESP32S3_EYE)
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 15
#define SIOD_GPIO_NUM 4
#define SIOC_GPIO_NUM 5
#define Y2_GPIO_NUM 11
#define Y3_GPIO_NUM 9
#define Y4_GPIO_NUM 8
#define Y5_GPIO_NUM 10
#define Y6_GPIO_NUM 12
#define Y7_GPIO_NUM 18
#define Y8_GPIO_NUM 17
#define Y9_GPIO_NUM 16
#define VSYNC_GPIO_NUM 6
#define HREF_GPIO_NUM 7
#define PCLK_GPIO_NUM 13
#elif defined(CAMERA_MODEL_DFRobot_FireBeetle2_ESP32S3) || defined(CAMERA_MODEL_DFRobot_Romeo_ESP32S3)
#define PWDN_GPIO_NUM -1
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 45
#define SIOD_GPIO_NUM 1
#define SIOC_GPIO_NUM 2
#define Y9_GPIO_NUM 48
#define Y8_GPIO_NUM 46
#define Y7_GPIO_NUM 8
#define Y6_GPIO_NUM 7
#define Y5_GPIO_NUM 4
#define Y4_GPIO_NUM 41
#define Y3_GPIO_NUM 40
#define Y2_GPIO_NUM 39
#define VSYNC_GPIO_NUM 6
#define HREF_GPIO_NUM 42
#define PCLK_GPIO_NUM 5
#else
#error "Camera model not selected"
#endif