BTController

You are standing in your workshop, a tangle of wires and servos on the bench. The custom drone won't lift off. The robot arm is frozen mid-assembly. You need precise, low-latency control over a Bluetooth serial device, but every generic controller app is either too slow, too cluttered, or simply doesn't work with your hardware. You need a tool that speaks directly to the chip, not a game pad. BTController is that tool – a raw Bluetooth serial terminal and control interface built for makers, engineers, and hobbyists who need direct communication with their embedded devices.

Core Functionality

BTController provides a direct, two-way communication bridge between your Android device and any Bluetooth Classic (SPP) compatible microcontroller, such as an Arduino, ESP32, or STM32. It operates as a dedicated serial terminal, allowing you to send and receive raw ASCII or hexadecimal data without unnecessary abstraction. The app includes a custom command button system, a real-time data log, and a configurable interface that adapts to your project's specific control needs.

• Dual-mode terminal with ASCII and HEX input/output switching
• Command button panel for one-tap transmission of up to 12 custom strings
• Real-time data logging with scrollback buffer and timestamping

Key Advantages

The primary strength of BTController lies in its raw performance and hardware-focused design. It connects to paired Bluetooth devices instantly, with no cloud dependency or account creation. The command button system allows you to pre-program entire control sequences, reducing manual typing errors during critical operations. The interface is fully responsive to screen rotation and adjusts to both phone and tablet form factors, ensuring the data display remains readable in any workshop orientation.

• Instant Bluetooth pairing with any SPP-compatible device (Android 8+)
• Customizable button profiles saved locally per session
• Zero-latency serial monitoring with adjustable baud rates (1200–921600)

Download Mobile App Now

Stop fighting with generic terminals. Gain exclusive access to a professional-grade Bluetooth controller that gives you direct, unfiltered command over your hardware. Limited offer: first-time users receive full access to the command button editor and extended log buffer. Download BTController today and take control of your next build.

Internet connection required for initial download. In-app purchases available for advanced profile management features.