Bluetooth Bridge (+TCP)

OVERVIEW
This app acts like a communication bridge between 2 devices of following types:
- SPP (Serial Port Profile) Bluetooth devices
- 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

Pro version further supports:
- BLE (Bluetooth Low Energy) devices
- USB devices (supported: CP210x, CDC, FTDI, PL2303 and CH34x chips)
- UDP sockets

Typical devices are micro-controllers with a Bluetooth module (like HC-06), other Android devices with Bluetooth terminal apps, devices running TCP clients/servers, etc.

User guide now available.

https://sites.google.com/view/communication-utilities/bridge-user-guide

HOW IT WORKS
Incoming transmission from one connected device is retransmitted to second connected device and vice versa. You can change this behaviour to one directional transfer, for example only from device A to device B. Bidirectional retransmission is default and can be changed during active transmission.

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 initialize connection from remote device. In such case use long click on Connect/Listen button which creates listening SPP port.

Opening TCP Server
App can create listening TCP Server socket (you can specify port number). 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.

Connecting to USB or BLE devices
This feature is only supported in PRO version. Free version allows to check device compatibility with your phone.

Unsupported
Unfortunately, devices like headsets and bluetooth speakers are not compatible with this app, since they use different bluetooth profile, neither SPP, nor BLE.

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