BlueTerm: Bluetooth Terminal

BlueTerm turns your phone into a bridge between a Bluetooth serial device and your computer's browser. Connect the device once on the phone, flip one switch, and any browser on the same Wi-Fi becomes a full terminal and live plotter for it.

NEW IN 1.2.2

- Firmware update over Bluetooth (free) - update Zephyr / nRF Connect SDK (MCUboot) and ESP32 (experimental) devices with a file from your phone. The new image is test-booted, then confirmed, and rolls back if it fails to boot.
- Two devices at once (Pro) - connect a sensor and a controller together, see both logs and send to either one; side by side on tablets.
- AI agent test loops - an MCP agent can send and wait for the reply, stop on a failure line, wait until a value meets a condition and run multi-step tests in one call (Pro).

KEY FEATURES

- Browser Bridge - one switch serves a terminal and a live plot to any browser on your Wi-Fi. No cable, no driver, nothing to install on the computer.
- BLE and classic Bluetooth - Nordic UART devices connect automatically, and a built-in GATT explorer lets you pick the notify and write characteristics yourself when a device uses its own UUIDs.
- A terminal that reads like one - timestamps, hex view, selectable line endings (LF / CRLF / CR / none) and one-tap command macros.
- Live plotting - numbers your device sends (temp:23.5, rpm=1200, >speed:3.14 or plain CSV) are charted in real time, in the app and in the browser.
- Export what you captured - CSV or JSON through the share sheet, so it lands in iCloud Drive, Google Drive or anywhere you choose.
- Try it without hardware - a built-in simulator streams sample sensor data, so you can see the whole flow before you own a device.

NEW IN 1.2 - AUTOMATION AND AI AGENTS

- AI coding agents (MCP) - turn on MCP on the Bridge screen (open it from the terminal's top bar) and an MCP client on your computer, such as Claude Code or Cursor, can read the live log and channel values over the same Wi-Fi (free). With Pro it can also send commands to the device. MCP is off by default, needs its own key and works while BlueTerm is open.
- Auto-reply rules and send sequences - reply to a matching line automatically, or send a list of commands with delays and repeats. Free: 1 rule and 1 sequence; Pro: 10 of each.
- Trigger capture - when a value crosses a threshold or a pattern appears, the lines before and after are saved for review and export. Free: 1 trigger and 3 saved captures; Pro: 10 triggers and 100 captures.
- Long recording (Pro) - write the whole session to files of up to 50 MB each, keeping the latest 20.
- Session history - every connection is recorded on the device automatically: all received and sent lines with timestamps. Search it, share it as TXT or CSV, or delete it. Free keeps the last 5 sessions, Pro keeps 100.
- Commands sent by a rule or an agent are marked in the phone and browser terminals.

BlueTerm Pro is a one-time lifetime purchase, not a subscription. It also removes ads and raises the scrollback, macro and browser limits.

WHY THIS APP?

Every other Bluetooth serial app ends inside the phone screen. But the work - reading long logs, comparing graphs, copying values into your notes - happens on a computer, and computers have no standard way to open a Bluetooth serial port.

Access to the bridge is protected by a password you set yourself, with a lockout after repeated failures, and the address is served on your local network only.

Terms of Use (EULA): https://blueterm.mint-soft.com/terms
Privacy Policy: https://blueterm.mint-soft.com/privacy

Recent changes:
What's new in 1.3.0
• New Dashboard: every value your device sends gets a large tile with a live graph. Tap a tile to read it full screen.
• Channel settings: name a value, add a unit, convert raw numbers (multiply and add), and set decimal places and High/Low limits.
• Home readings use the same names and units, and you can keep the screen on while you watch.