Utilizzo avanzato

import serial
import time

# Windows: 'COM3', Linux: '/dev/ttyUSB0', macOS: '/dev/tty.usbserial-*'
ser = serial.Serial('COM3', 115200, timeout=0.1)

def set_level(level):
    ser.write(bytes([0x02, 0x53, 0x00, level]))
    resp = ser.read(1)
    return len(resp) > 0 and resp[0] == 0x00

def get_frequency():
    ser.write(bytes([0x02, 0x52]))
    resp = ser.read(2)
    if len(resp) == 2 and resp[0] == 0x00:
        return resp[1]
    return None

# Usage
print(f"Mains frequency: {get_frequency()} Hz")
set_level(50)
print("Brightness: 50%")

ser.close()

[Computer/Phone] ←WiFi→ [ESP-01] ←UART→ [DimmerLink] → [Dimmer]

#include 
#include 

const char* ssid = "YOUR_WIFI";
const char* password = "YOUR_PASSWORD";

ESP8266WebServer server(80);

void setup() {
    Serial.begin(115200);

    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
    }

    server.on("/set", handleSet);
    server.on("/get", handleGet);
    server.begin();
}

void handleSet() {
    if (server.hasArg("level")) {
        int level = server.arg("level").toInt();
        if (level >= 0 && level <= 100) {
            uint8_t cmd[] = {0x02, 0x53, 0x00, (uint8_t)level};
            Serial.write(cmd, 4);

            delay(10);
            if (Serial.available()) {
                uint8_t resp = Serial.read();
                server.send(200, "text/plain", resp == 0x00 ? "OK" : "ERROR");
            } else {
                server.send(500, "text/plain", "NO_RESPONSE");
            }
        } else {
            server.send(400, "text/plain", "INVALID_LEVEL");
        }
    } else {
        server.send(400, "text/plain", "MISSING_LEVEL");
    }
}

void handleGet() {
    uint8_t cmd[] = {0x02, 0x47, 0x00};
    Serial.write(cmd, 3);

    delay(10);
    if (Serial.available() >= 2) {
        uint8_t status = Serial.read();
        uint8_t level = Serial.read();  // Already in percent 0-100!
        if (status == 0x00) {
            server.send(200, "text/plain", String(level));
        } else {
            server.send(500, "text/plain", "ERROR");
        }
    } else {
        server.send(500, "text/plain", "NO_RESPONSE");
    }
}

void loop() {
    server.handleClient();
}

# Set brightness to 50%
curl "http://192.168.1.100/set?level=50"

# Get current brightness
curl "http://192.168.1.100/get"

[Controller + LoRa TX] ~~~radio~~~ [LoRa RX + DimmerLink]

// Arduino + E32 (transmitter)
void sendCommand(uint8_t* cmd, int len) {
    Serial1.write(cmd, len);  // Send via LoRa
}

void loop() {
    // Set brightness to 50%
    uint8_t cmd[] = {0x02, 0x53, 0x00, 0x32};
    sendCommand(cmd, 4);
    delay(1000);
}

[Server/Phone] ←GSM→ [SIM800L + MCU] ←UART→ [DimmerLink]

#include 

SoftwareSerial gsm(7, 8);  // RX, TX for SIM800L
SoftwareSerial dimmer(10, 11);  // RX, TX for DimmerLink

void setup() {
    gsm.begin(9600);
    dimmer.begin(115200);

    // Configure SIM800L for SMS
    gsm.println("AT+CMGF=1");  // Text mode
    delay(100);
    gsm.println("AT+CNMI=2,2,0,0,0");  // SMS notifications
    delay(100);
}

void loop() {
    if (gsm.available()) {
        String message = gsm.readString();

        // Parse SMS "SET 50"
        if (message.indexOf("SET ") >= 0) {
            int idx = message.indexOf("SET ") + 4;
            int level = message.substring(idx).toInt();

            if (level >= 0 && level <= 100) {
                uint8_t cmd[] = {0x02, 0x53, 0x00, (uint8_t)level};
                dimmer.write(cmd, 4);
            }
        }
    }
}

def reliable_set_level(ser, level, retries=3):
    for attempt in range(retries):
        ser.write(bytes([0x02, 0x53, 0x00, level]))
        ser.flush()

        resp = ser.read(1)
        if resp and resp[0] == 0x00:
            return True

        time.sleep(0.1)

    return False

[WiFi/BT] → [ESP32 (UART)] → [DimmerLink (I2C)]