From 2b7582808ede7bfd8a5b46f444ff2351c0281e88 Mon Sep 17 00:00:00 2001 From: Gamenight77 Date: Wed, 23 Apr 2025 11:50:26 +0200 Subject: [PATCH] Update serial communication code: change COM port in read_rx.py and add ESP32 command interpretation in esp32_read.py --- Semaine_1/Python_UART/read_rx.py | 2 +- .../esp32_code/Projet_code/ESP32/ESP32.ino | 111 ++++++++++++++++++ .../esp32_code/Projet_code/esp32_read.py | 46 ++++++++ 3 files changed, 158 insertions(+), 1 deletion(-) create mode 100644 Semaine_2/Projet_esp32/esp32_code/Projet_code/ESP32/ESP32.ino create mode 100644 Semaine_2/Projet_esp32/esp32_code/Projet_code/esp32_read.py diff --git a/Semaine_1/Python_UART/read_rx.py b/Semaine_1/Python_UART/read_rx.py index c1feda3..e2c2865 100644 --- a/Semaine_1/Python_UART/read_rx.py +++ b/Semaine_1/Python_UART/read_rx.py @@ -1,7 +1,7 @@ import serial import time -ser = serial.Serial('COM6', 115200) +ser = serial.Serial('COM5', 115200) ser.timeout = 1 # Boucle pour lire les données du port série diff --git a/Semaine_2/Projet_esp32/esp32_code/Projet_code/ESP32/ESP32.ino b/Semaine_2/Projet_esp32/esp32_code/Projet_code/ESP32/ESP32.ino new file mode 100644 index 0000000..733ffe3 --- /dev/null +++ b/Semaine_2/Projet_esp32/esp32_code/Projet_code/ESP32/ESP32.ino @@ -0,0 +1,111 @@ +#include +#include +#include "esp_wifi.h" + +const char* ssid = "ESP32-Louis"; +const char* password = "motdepasse"; + +WebServer server(80); + +void handleRoot() { + digitalWrite(2,HIGH); + wifi_sta_list_t sta_list; + esp_wifi_ap_get_sta_list(&sta_list); + + String page = ""; + page += ""; + page += ""; + page += ""; + page += "ESP32"; + page += ""; + page += ""; + page += ""; + page += "

Appareils connectés à l'ESP32

"; + page += "
    "; + + page += "
      "; + + for (int i = 0; i < sta_list.num; i++) { + const wifi_sta_info_t& client = sta_list.sta[i]; + char macStr[18]; + snprintf(macStr, sizeof(macStr), + "%02X:%02X:%02X:%02X:%02X:%02X", + client.mac[0], client.mac[1], client.mac[2], + client.mac[3], client.mac[4], client.mac[5]); + page += "
    • MAC : "; + page += macStr; + page += "
      • "; + } + + page += "
    "; + page += "

    Nombre total : " + String(sta_list.num) + "

    "; + + page += ""; + + server.send(200, "text/html", page); + digitalWrite(2,LOW); +} + +void onClientConnected(WiFiEvent_t event, WiFiEventInfo_t info) { + digitalWrite(2, HIGH); + + const wifi_event_ap_staconnected_t* conn = reinterpret_cast(&info); + + + byte packet[11]; // 2 header + 1 code + 6 MAC + 1 fin + packet[0] = 0x02; + packet[1] = 0x02; + packet[2] = 0x01; + + // Copier l'adr MAC dans le tableau + memcpy(&packet[3], conn->mac, 6); + + packet[9] = 0x03; + + Serial.write(packet, sizeof(packet)); + digitalWrite(2, LOW); +} + +void onClientDisconnected(WiFiEvent_t event, WiFiEventInfo_t info) { + digitalWrite(2, HIGH); + + const wifi_event_ap_stadisconnected_t* disc = reinterpret_cast(&info); + + byte packet[11]; + packet[0] = 0x02; + packet[1] = 0x02; + packet[2] = 0x00; + + memcpy(&packet[3], disc->mac, 6); + packet[9] = 0x03; + + Serial.write(packet, sizeof(packet)); + digitalWrite(2, LOW); +} + +void setup() { + Serial.begin(115200); + if (!WiFi.softAP(ssid, password)) { + byte packet[] = {0x02, 0x01, 0x00, 0x03}; + Serial.write(packet, sizeof(packet)); + } + + WiFi.onEvent(onClientConnected, ARDUINO_EVENT_WIFI_AP_STACONNECTED); + WiFi.onEvent(onClientDisconnected, ARDUINO_EVENT_WIFI_AP_STADISCONNECTED); + + delay(1000); // Donne un peu de temps pour démarrer le WiFi + + + server.on("/", handleRoot); + server.begin(); + + pinMode(2, OUTPUT); + + byte packet[] = {0x02, 0x01, 0x01, 0x03}; + Serial.write(packet, sizeof(packet)); + +} + +void loop() { + server.handleClient(); +} \ No newline at end of file diff --git a/Semaine_2/Projet_esp32/esp32_code/Projet_code/esp32_read.py b/Semaine_2/Projet_esp32/esp32_code/Projet_code/esp32_read.py new file mode 100644 index 0000000..da1d3a7 --- /dev/null +++ b/Semaine_2/Projet_esp32/esp32_code/Projet_code/esp32_read.py @@ -0,0 +1,46 @@ +import serial + +def format_mac(mac_bytes): + return ":".join(f"{b:02X}" for b in mac_bytes) + +def interpret_command(data): + if len(data) == 10 and data[0] == 0x02 and data[1] == 0x02 and data[-1] == 0x03: + cmd_type = data[2] + mac = data[3:9] + if cmd_type == 0x01: + return f"[+] Appareil connecté : {format_mac(mac)}" + elif cmd_type == 0x00: + return f"[-] Appareil déconnecté : {format_mac(mac)}" + else: + return f"[?] Commande inconnue : {data.hex()}" + elif len(data) == 4 and data[0] == 0x02 and data[1] == 0x01 and data[-1] == 0x03: + return "[*] Démarrage ESP32" + else: + return "[!] Donnée non reconnue" + +def main(): + port = "COM5" # Remplace par ton port série (ex. /dev/ttyUSB0 sous Linux) + baudrate = 115200 + + with serial.Serial(port, baudrate, timeout=1) as ser: + print(f"Lecture sur {port} à {baudrate} bauds...\n") + buffer = bytearray() + + while True: + byte = ser.read() + if not byte: + continue + + buffer += byte + + # Si on détecte le début (0x02) et fin (0x03), on traite + if buffer[0] == 0x02 and 0x03 in buffer: + end_index = buffer.index(0x03) + packet = buffer[:end_index + 1] + buffer = buffer[end_index + 1:] + + print("Reçu :", ' '.join(f'{b:02X}' for b in packet)) + print("↳", interpret_command(packet), "\n") + +if __name__ == "__main__": + main()