Amazon / Utilities / ARDUINO BLUETOOTH TERMINAL
REVIEW
Arduino Bluetooth Terminal does one job and stays out of the way.
A free serial-over-Bluetooth terminal for Fire tablets aimed squarely at the maker debugging an Arduino sketch on the bench.
BY THE APP COMRADE DESK · MAY 10, 2026 · 3 MIN READ
Arduino Bluetooth Terminal
POWER7 NET
OUR SCORE
7.0
AMAZON
★ 5.0
PRICE
Free
The Arduino crowd has a specific debugging ritual: flash a sketch, sprinkle Serial.println() calls through the code, then watch the bytes scroll past on a terminal somewhere. On a laptop that terminal is the Arduino IDE’s built-in serial monitor. On the bench, fifteen feet from the laptop, with the project running off a 9V battery and an HC-05 module bridging the gap, the terminal is whatever app you can find on the nearest tablet.
Arduino Bluetooth Terminal is one of the few apps in the Amazon Appstore that takes that exact scenario seriously. It is free, it is single-purpose, and it does not pretend to be more than a thin window onto a classic Bluetooth serial stream. The maker community has kept it around for years for the same reason makers keep anything around — it does the one thing they actually need and stops there.
That is the whole pitch, and for the audience it targets, the whole pitch is enough.
It is a terminal window with a Bluetooth radio attached, and for the maker on the bench that is exactly the right shape.
FEATURES
The app pairs with classic Bluetooth serial modules — HC-05, HC-06, and the rest of the JY-MCU family that hobbyists solder onto an Arduino's TX/RX pins. After pairing through Fire OS settings, the app lists bonded devices, connects on tap, and opens a scrolling terminal pane. Type at the bottom, watch bytes come back at the top. The send field accepts manual line-ending control — none, CR, LF, or CR+LF — which is the one configuration most makers actually need.
Baud rate is selectable from the standard ladder (9600 up through 115200), matching whatever you set in Serial.begin() on the Arduino side. Received data renders as plain ASCII; there is no hex view, no plotting, no scripting layer. A clear button wipes the buffer, and a basic share action will hand the visible text off to another app if you want to email a log to yourself.
MISSION ACCOMPLISHED
The scope is honest. This is a terminal window with a Bluetooth radio attached, and for the maker on the bench that is exactly the right shape. Connection is a two-tap affair, the line-ending picker is exposed at the top level instead of buried three menus deep, and the app does not try to upsell a pro tier or shove ads into the buffer between log lines.
It runs on cheap Fire tablets, which is the underrated win. A $50 Fire 7 propped next to a breadboard is a perfectly reasonable serial monitor when your laptop is across the room, and this app is one of the few that targets that exact scenario without demanding a USB-OTG cable or a rooted device.
ROOM TO IMPROVE
Feature ceiling is low. There is no hex-mode view for binary protocols, no timestamping on incoming lines, no scripting to send canned command sequences, and no file logging beyond what you can manually share out. Anyone debugging anything more structured than Serial.println() output will outgrow it within an afternoon.
The app also predates BLE-only modules. If your project uses an HM-10, nRF52, or ESP32 advertising as BLE rather than classic Bluetooth, this terminal will not see it — you need a separate BLE-aware app. Updates have been sparse, so do not expect that gap to close.
CONCLUSION
Install it if you are flashing sketches to an Uno or Nano with an HC-05 strapped on and you want a no-friction serial monitor on a Fire tablet. Skip it if your radio is BLE, if you need hex or logging, or if you are already running a full IDE over USB. For the narrow case it targets, the price is right and the friction is low.