Send brightness level to a PIN

[CollaVinilica]

Hi, would it be possible to have an example code like the Wemos D1 Mini with Relay that uses a pin to set the brightness level of a white (single color) LED Strip using a MOSFET instead of using a relay? I've tried the examples but I'm unable to send the value to a pin instead of just printing it to the serial monitor. Could anyone help me?

[CollaVinilica]

Someone? Please?

[kakopappa]

@CollaVinilica

dude your question is not clear.

I assume you are trying to control the brightness of the LEDs to turn it on /off

1. Do you want help with linking this to Alexa or with actual wiring it? Can you tell us what you have done so far?

2. Is there a tutorial you follow to achieve this? share more details about the LED stripe you are using

I do not have a LED stripe. So I am just guessing here. I found an example here. but it is RGB LED stripe. I assume it is working based on the same principals.

https://learn.adafruit.com/rgb-led-strips/arduino-code https://www.makeuseof.com/tag/connect-led-light-strips-arduino/

Use this example: https://github.com/kakopappa/sinric/blob/master/arduino_examples/light_example2.ino#L122

based on the "value" you have to set the light strip brightness

[CollaVinilica]

Hi, I'm sorry if I wasn't clear. I'm just trying to control the brightness level on a single color LED strip o any other LED light using a 12V input. Like you would do with a Philips Hue bulb, but instead I'm trying to use it your code. Light_example2.ino can print the brightness level on a serial monitor, but other than that, I would like to send that serial value to a PWM Pin on an ESP module. As a circuit I would do something like this https://i.stack.imgur.com/tfSQ1.png

[kakopappa]

First, try this code. http://yaab-arduino.blogspot.com/2015/01/driving-led-strip-with-arduino.html https://programmingelectronics.com/tutorial-10-fade-an-led-with-pulse-width-modulation-using-analogwrite/

You might need a CAP to avoid flickering (https://electronics.stackexchange.com/questions/196344/led-strip-dimming)

Does it fade in/out? Can you get it to work? then things are easy from there.

then in the sketch create a function like this and pass the brightness

fade_in_out(int brightness) { // update the code from sample }

..... else if(action == "SetBrightness") { int brightness = json["value"]; fade_in_out(brightness);
} ..

[CollaVinilica]

Hi, I already know to how to use PWM in the code, I just wanted some help to add the functionality on your code, like the relay example, but using a MOSFET to control the brightness level of a strip using PWM instead of a simple HIGH o LOW.

[CollaVinilica]

So, can you help me?

[CollaVinilica]

Nothing uh?

[servermcp]

else if(action == "action.devices.commands.BrightnessAbsolute") {

    int brightness = json ["value"]["brightness"];

    Serial.println("[WSc] brightness: " + brightness);
    analogWrite (rel1,brightness);

Its work for me

[servermcp]

https://github.com/kakopappa/sinric/issues/169

Try it.

[Addi100174]

Könnte jemand den code für set brightness komplett hier veröffentlichen , ich bekomme es nicht hin .

[Addi100174]

Hier veröffentlichen bitte

[servermcp]

For Google home with OTA and wifi mánager.

include

include

include

include

include

include

include

include

include // https://github.com/kakopappa/sinric/wiki/How-to-add-dependency-libraries

include // https://github.com/kakopappa/sinric/wiki/How-to-add-dependency-libraries

include

ESP8266WebServer httpServer(80); WebSocketsClient webSocket; WiFiClient client; ESP8266HTTPUpdateServer httpUpdater;

define MyApiKey "4ff18951-d947-4dff-ade1-7416a9058afd" // TODO: Change to your sinric API Key. Your API Key is displayed on sinric.com dashboard

define PIN 2 // GPIO 2

define HEARTBEAT_INTERVAL 300000 // 5 Minutes

uint64_t heartbeatTimestamp = 0; bool isConnected = false;

const char* host = "BMCupdate";

void turnOn(String deviceId) { if (deviceId == "5c05e7188d32c11d9e08ccce") // Device ID of first device {
Serial.print("Turn on device id: "); Serial.println(deviceId); digitalWrite(PIN,HIGH); }

else { Serial.print("Turn on for unknown device id: "); Serial.println(deviceId);
}
}

void turnOff(String deviceId) { if (deviceId == "5c05e7188d32c11d9e08ccce") // Device ID of first device {
Serial.print("Turn off Device ID: "); Serial.println(deviceId); digitalWrite(PIN,LOW); }

else { Serial.print("Turn off for unknown device id: "); Serial.println(deviceId);
} }

void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) { switch(type) { case WStype_DISCONNECTED: isConnected = false;
Serial.printf("[WSc] Webservice disconnected from sinric.com!\n"); break; case WStype_CONNECTED: { isConnected = true; Serial.printf("[WSc] Service connected to sinric.com at url: %s\n", payload); Serial.printf("Waiting for commands from sinric.com ...\n");
} break; case WStype_TEXT: { Serial.printf("[WSc] get text: %s\n", payload); // Example payloads

    // For Switch  types
    // {"deviceId":"xxx","action":"action.devices.commands.OnOff","value":{"on":true}} // https://developers.google.com/actions/smarthome/traits/onoff
    // {"deviceId":"xxx","action":"action.devices.commands.OnOff","value":{"on":false}}

    DynamicJsonBuffer jsonBuffer;
    JsonObject& json = jsonBuffer.parseObject((char*)payload); 
    String deviceId = json ["deviceId"];     
    String action = json ["action"];

    if(action == "action.devices.commands.OnOff") { // Switch 
        String value = json ["value"]["on"];
        Serial.println(value); 

        if(value == "true") {
            turnOn(deviceId);
        } else {
            turnOff(deviceId);
        }
    }
    else if(action == "action.devices.commands.BrightnessAbsolute") {

        int brightness = json ["value"]["brightness"];

        Serial.println("[WSc] brightness: " + brightness);
        analogWrite (PIN,brightness*10);
    }

    else if (action == "test") {
        Serial.println("[WSc] received test command from sinric.com");
    }
  }
  break;
case WStype_BIN:
  Serial.printf("[WSc] get binary length: %u\n", length);
  break;

} }

void setup() { Serial.begin(115200); pinMode(PIN, OUTPUT); digitalWrite(PIN,HIGH); WiFiManager wifiManager;

wifiManager.setTimeout(180);

if(!wifiManager.autoConnect("BMC Device")) { Serial.println("failed to connect and hit timeout"); delay(3000); //reset and try again, or maybe put it to deep sleep ESP.reset(); delay(5000); }

// server address, port and URL webSocket.begin("iot.sinric.com", 80, "/"); //"iot.sinric.com", 80

// event handler webSocket.onEvent(webSocketEvent); webSocket.setAuthorization("apikey", MyApiKey);

// try again every 5000ms if connection has failed webSocket.setReconnectInterval(5000); // If you see 'class WebSocketsClient' has no member named 'setReconnectInterval' error update arduinoWebSockets

//OTA MDNS.begin(host);

httpUpdater.setup(&httpServer); httpServer.begin();

MDNS.addService("http", "tcp", 80); Serial.printf("HTTPUpdateServer ready! Open http://%s.local/update in your browser\n", host); }

void loop() { webSocket.loop();

if(isConnected) { uint64_t now = millis();

  // Send heartbeat in order to avoid disconnections during ISP resetting IPs over night. Thanks @MacSass
  if((now - heartbeatTimestamp) > HEARTBEAT_INTERVAL) {
      heartbeatTimestamp = now;
      webSocket.sendTXT("H");          
  }

} //OTA httpServer.handleClient();
}

[Addi100174]

Geht leider nicht

[Addi100174]

Kann keiner helfen ?