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About BT/USB/TCP Bridge Pro

OVERVIEW
Bluetooth/USB/TCP Bridge app enables communication between different types of communication technologies. Smartphone with this app installed acts as a converter device. It connects to remote devices which cannot communicate directly between each other, and it creates communication bridge between them, enabling them to exchange data. Following types of connections are currently supported:
- Classic Bluetooth devices : devices such as Bluetooth modules (HC-05, HC-06), other smartphone with Bluetooth terminal app, PC or any other device capable of opening Bluetooth port (serial port profile/SPP). App can also create listening port to which remote Bluetooth devices can connect.
- BLE (Bluetooth low energy) / Bluetooth 4.0 devices : devices such as BLE Bluetooth modules(HM-10, MLT-BT05), smart sensors (heart rate monitors, thermostats...)
- USB devices : supported: CP210x, CDC, FTDI, PL2303 and CH34x chips
- TCP server : app can create listening TCP server socket to which you can connect TCP client running on remote device
- TCP client : app can connect to listening TCP server
- UDP socket

Bluetooth/USB/TCP Bridge app can also display all received data in log in hexadecimal or text form. From v3.1 it is also possible to send data directly to connected devices from the app (0x or text form).

User guide now available.

Click here to become a beta tester

CONNECTIONS
Connecting to SPP devices - Click Connect/Listen and select device from the list of paired devices. Make sure other device is listening for incoming connections. You can also initialise connection from remote device. In such case use long click on Connect/Listen button which creates listening SPP port.

Connecting to BLE devices (only as device A) - When BLE device is selected, app starts scanning for nearby BLE devices. Select your device in the list of found devices. Characteristics and services are retrieved automatically. One characteristic can be used for receiving and transmission (one Rx+Tx characteristic), just click on characteristic which you want to use.

Connecting to USB devices - Your phone must support USB OTG function. Some phones detect more than one USB device, in that case you need to try which one is the correct one by changing parameter USB#. Following parameters are supported: Baud rate[bps], data bits, parity, stop bits, flow control. Flow control is implemented for CP2102, FTDI and CH34x chips.

Opening TCP Server - App can create listening TCP Server socket. You can connect to it from remote device using TCP Client. Make sure your firewall allows such connections. This version allows connection of one TCP client.

TCP Client - App has also TCP client, which can connect to listening TCP server. As usual, you just need to specify server IP and port number. In case of connecting to PC make sure firewall is set up properly.

Unsupported
Unfortunately, devices like headsets and Bluetooth speakers are not compatible with this app, since they use different Bluetooth profile, neither SPP (serial port profile), nor BLE (Bluetooth Low Energy).

SUPPORT
Found a bug? Missing feature? Just email the developer. Your feedback is greatly appreciated.
[email protected]

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Frequently Asked Questions(FAQ)

What is the Bluetooth/USB/TCP Bridge Pro app?

The Bluetooth/USB/TCP Bridge Pro app enables communication between different types of communication technologies by acting as a converter device and creating a communication bridge between them.

What types of connections are supported by the app?

The app currently supports connections with classic Bluetooth devices, BLE/Bluetooth 4.0 devices, USB devices, TCP server, TCP client, and UDP socket.

Can the app display received data?

Yes, the app can display all received data in either hexadecimal or text form.

Is it possible to send data directly to connected devices from the app?

Yes, from version 3.1 onwards, it is possible to send data directly to connected devices from the app in either 0x or text form.

How do I connect to SPP devices?

To connect to SPP devices, click on "Connect/Listen" and select the device from the list of paired devices. Make sure the other device is listening for incoming connections. You can also create a listening SPP port by long clicking on the "Connect/Listen" button.

How do I connect to BLE devices?

To connect to BLE devices, select the BLE device from the list of found devices after the app starts scanning for nearby BLE devices. Characteristics and services are retrieved automatically. You can click on the characteristic you want to use for receiving and transmission.

How do I connect to USB devices?

To connect to USB devices, your phone must support USB OTG function. If your phone detects more than one USB device, you may need to try different parameters (e.g., Baud rate, data bits, parity, stop bits, flow control) to find the correct one.

How do I open a TCP Server?

The app can create a listening TCP Server socket. You can connect to it from a remote device using a TCP Client. Make sure your firewall allows such connections.

Does the app have a TCP Client?

Yes, the app has a TCP client that can connect to a listening TCP server. You just need to specify the server IP and port number. Make sure the firewall is set up properly when connecting to a PC.

Which devices are not supported by the app?

Headsets and Bluetooth speakers are not compatible with this app as they use different Bluetooth profiles that are not supported (neither SPP nor BLE).

How can I report a bug or request a missing feature?

You can email the developer at [email protected]. Your feedback is greatly appreciated.
author
Never be happier with a $1.49 purchase on anything, especially the Play store! Thank you for a no BS, straight, clean app that just works! Solved a simple problem that wasn't so simple with no plan B for thi...
Charles B
author
Excellent! I needed an app that would bridge two clients, and this does it.
Brian Plummer
author
I needed it to connect my Meade telescope to the Stellaruim App on my phone. The connection goes from a serial port to a USB converter to the App. Pro BT/USB/TCP does the USB and TCP part excellently!
Piet Le Roux
author
Very good app, prfect support
Jol Kanc
author
I'm trying to bridge android to arduino. I can't set Bluetooth baud rate. Also, it just feels like there is lack of options/information. What is the baud rate used by bt module and can I change it?
Ivan Kuliš