Smart Incubator Project Overview

flux

Pour ton projet, je recommande un module buck LM2596 12 V → 5 V réglé à 5.0 V, plutôt qu’un A1117-5V.
Dimensionnement simple :

Table

ÉlémentCourant typique à prévoir
ESP32 DevKit WiFi~300–500 mA en pics
Servo~500 mA à 1 A en pics, parfois plus selon modèle
2 modules relais 5 V~140–200 mA total
LCD I2C 16x2~20–80 mA
DHT22 + LED + buzzerfaible, sauf buzzer puissant
Donc il faut viser au minimum 5 V / 2 A, et idéalement 5 V / 3 A pour avoir de la marge.
Choix recommandé
Utilise un module :
LM2596 DC-DC Buck Step-Down
  • Entrée : 12 V
  • Sortie réglée : 5 V
  • Courant annoncé : 3 A
  • Courant réaliste continu : plutôt 1.5–2 A sans gros refroidissement
  • Facile à trouver, pas cher, simple pour débutant
Encore mieux si disponible
Un module buck MP1584 3 A peut aussi fonctionner, plus compact, mais il est plus petit et parfois moins pratique à régler/souder.
Ma recommandation pour ta carte
Pour un projet étudiant/prototype :
  • Bornier 12 V entrée
  • Module buck LM2596 externe ou enfichable
  • Sortie buck : 5 V
  • 5 V distribué vers :
    • ESP32 DevKit sur pin VIN/5V
    • Servo
    • Relais x2
    • LCD I2C
    • buzzer/LED si en 5 V
Ajoute près des sorties :
  • 470 µF à 1000 µF sur le rail 5 V pour absorber les pics du servo
  • 100 nF près des connecteurs/alimentations logiques
  • idéalement une masse commune propre entre ESP32, relais et servo
Donc : prends un LM2596 12 V→5 V, 3 A, réglé à 5.0 V avant de brancher l’ESP32.
mort93880

mort93880

Pas besoin de lcd puis qu on utilisera une tablette comme interface

flux

Bien reçu : je retire le LCD de la conception matérielle et je garde la tablette comme interface utilisateur principale.

flux

C’est noté : j’ai supprimé le LCD I2C 16x2 de la conception et mis à jour la spécification pour indiquer que la tablette Android/app mobile est l’interface principale. Fichier mis à jour : Spécification Projet — Couveuse Smart ESP32.
La carte devient donc plus simple : support ESP32, DHT22, relais x2, servo, buzzer, LED, alimentation 12 V et buck 5 V.
Créer le schéma
Choisir les GPIO
Ajouter protection alimentation
Dimensionner condensateurs
Module buck recommandé
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Couveuse Smart ESP32

Couveuse Smart ESP32 thumbnail
Couveuse intelligente connectée basée sur ESP32 avec capteur DHT22, LCD I2C 16x2, servo de retournement, buzzer, LED et deux modules relais pour chauffage/humidification.

Properties

LCD I2C 16x2, LED, buzzer, tablette Android/app mobile

WiFi via ESP32; synchronisation prévue avec Firebase/app mobile

À confirmer: tension d’entrée, courant servo, relais et actionneurs chauffage/humidification

Couveuse intelligente / IoT éducatif

ESP32 principal, DHT22, servo, buzzer, LED avec résistance 220 ohms, 2 modules relais, ESP32-CAM prévue

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