Control a led lamp using my phone with Bluetooth on rasp4

How can I control a led lamp connected to raspberry pi 4b using the Bluetooth on my phone?

Would HC-05 module work for this? Cause I have tried the raspberry pi's Bluetooth and it dident work to send a signal to it

The Pi 4 itself has Bluetooth. Did you install the OS with GUI or headless?

i tried using the bluetooth on the rasp4 and i couldent make the code work as my phone couldent pick up the rasp4 bluetooth

How did you try it?

i tried it at first on my laptop where i have ubuntu installed so very simillar experience but when running the bluetooth code it picked up everything but my phone

OK, back to the first question. Have you installed the OS with a graphical user interface or without?

GUI

Do you also have Ubuntu installed on the Pi? Can you connect to the cell phone on the laptop? How around, cell phone to laptop or laptop to cell phone? Or can you do both?

Yes, yes, Wdm

So you turn on the Bluetooth on your cell phone and Pi. Is the Pi displayed on the cell phone? Is the cell phone displayed on the Pi? Which devices are found?

Like I can see the pi and everything when I run the code tho it finds every other device than my phone

Even tho they are connected

Which device are you running the code on? And how is the LED connected?

Rn I have not connected the led as I just want a result from the code at first by it self, I am running the code rn from rasp4, the phone is a iPhone 13 mini (sadly)

OK and what exactly is supposed to happen so that you can see if it works?

print(1)

<:babyblob:1053364680200044564>

On Pi Konsole? It's best if you show the code. Did you follow any instructions?

Nvm got it to work thanks for the help

Could you share the solution?

Tbh I have no idea what I did to make it work

😂

'''py import bluetooth def receive_messages(): # Create a Bluetooth socket and bind it to any address and a port server_sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM) port = bluetooth.PORT_ANY server_sock.bind(("", port)) server_sock.listen(1) # Get the port that the server socket is using port = server_sock.getsockname()[1] print(f"Waiting for connection on RFCOMM channel {port}") # Advertise this service bluetooth.advertise_service(server_sock, "SampleServer", service_id="00001101-0000-1000-8000-00805F9B34FB", service_classes=["00001101-0000-1000-8000-00805F9B34FB", bluetooth.SERIAL_PORT_CLASS], profiles=[bluetooth.SERIAL_PORT_PROFILE]) # Accept a connection client_sock, client_info = server_sock.accept() print(f"Accepted connection from {client_info}") try: while True: # Receive data from the client data = client_sock.recv(1024) if data: print(f"Received: {data}") if data.strip() == b'1': print("Hello World") except OSError: pass # Close the connections print("Disconnected") client_sock.close() server_sock.close() if __name__ == "__main__": receive_messages() '''

python
import bluetooth

def receivemessages():
    # Create a Bluetooth socket and bind it to any address and a port
    serversock = bluetooth.BluetoothSocket(bluetooth.RFCOMM)
    port = bluetooth.PORTANY
    serversock.bind(("", port))
    server_sock.listen(1)

    # Get the port that the server socket is using
    port = server_sock.getsockname()[1]
    print(f"Waiting for connection on RFCOMM channel {port}")

    # Advertise this service
    bluetooth.advertise_service(server_sock, "SampleServer",
                                service_id="00001101-0000-1000-8000-00805F9B34FB",
                                service_classes=["00001101-0000-1000-8000-00805F9B34FB", bluetooth.SERIAL_PORT_CLASS],
                                profiles=[bluetooth.SERIAL_PORT_PROFILE])

    # Accept a connection
    client_sock, client_info = server_sock.accept()
    print(f"Accepted connection from {client_info}")

    try:
        while True:
            # Receive data from the client
            data = client_sock.recv(1024)
            if data:
                print(f"Received: {data}")

                if data.strip() == b'1':
                    print("Hello World")
    except OSError:
        pass

    # Close the connections
    print("Disconnected")
    client_sock.close()
    server_sock.close()

if __name == "__main":
    receive_messages()

Use backtick `

👍

Wait so this opens a Bluetooth connection? I'm trying to learn new things by learning off source codes 👍

Look up ESP32 microcontroller if u want an even better microcontroller for dealing with Bluetooth, myself will probably jump to that instead

Ah okay

It has ESP-now that u can connect 2 esp devices with a range around 200 meters might be worth looking into for ya

So it opens a Bluetooth connection... do you mind if I'll use your source code?

Use it

Okay , thanks !

<@421332284461809675> if i may ask, why use a pi 4 for such a simple task?

This. The best option is a microcontroller, like an ESP32-c3 Dev board. You're running a machine, not an OS.

Look above and u can see that i mention a ESP-32

I am switching to an ESP32 like next month, I used a rasp4 cause that was what I had laying around

Wait wouldn't it be possible to open thousands of Bluetooth networks?

No idea tbh

In theory probably, but u will reach a point were the device cannot handle more

Well when I'm back from vacation, ima try out