Connect to a Dragino Device Using
Serial Bluetooth Terminal (Android)
This guide shows you how to connect to any supported Dragino device using the Serial Bluetooth Terminal app on Android.
Connecting to a Dragino Device via Bluetooth
Follow the steps below to connect to your Dragino device using the Serial Bluetooth Terminal app on Android. This allows you to access the device and run commands when needed, especially for quick checks or changes in the field.
- Power on the Dragino device: Press and hold the button on the device for around 5 seconds. Allow up to 1 minute for it to fully boot up.
- Download the Serial Bluetooth Terminal app: If you don’t already have it installed, download Serial Bluetooth Terminal from the Google Play Store.
- Open the app: Launch the Serial Bluetooth Terminal app on your Android phone.
- Open the device menu: Tap the menu icon (three lines in the top left corner), then select Devices.
- Select Bluetooth LE and scan: Make sure you are on the Bluetooth LE tab, then tap Scan to search for nearby devices.
- Select your Dragino device: Tap the correct device from the list. You can usually identify it by matching the last digits of the IMEI or Device EUI printed on the device label or packaging.
- Wait for the connection to open: Once connected, the terminal screen will open.
Connection Tip:
If you try to connect too soon after powering up the device, the connection may open and then immediately disconnect. If this happens, wait around 10 seconds and try connecting again.
Important:
After connecting, wait until the device finishes its startup process. You’ll typically see a message indicating it has entered sleep mode. At this point, send your commands. If you wait too long, the Bluetooth connection may time out and you’ll need to reconnect.
Testing the connection:
- PIN - Enter the device PIN in the text box at the bottom of the terminal screen, then tap the send button (arrow icon) in the bottom right.
- AT+CFG - Enter this command in the text box at the bottom of the terminal screen, then tap the send button. The device will return its current configuration if the connection is working correctly.
Once connected, you can view device information or send commands as needed.
Example Macro Configurations for LTE-M and NB-IoT Devices
Serial Bluetooth Terminal includes programmable shortcut tabs above the text input field on the main terminal screen. By pressing and holding one of these tabs, you can save either a single command or a multi-line text macro. The examples below show multi-line text macros that can be used to send the essential setup commands for both LTE-M and NB-IoT Dragino devices.
LTE-M Setup for Telemetry2U
(1NCE)
Configuration for Telemetry2U via the 1NCE LTE-M network:
- AT+SERVADDR=150.101.108.130,4483 - Sets the server address and port the device will send data to.
- AT+APN=iot.1nce.net - Sets the APN for the SIM card provider.
- AT+IOTMOD=0 - Sets the device to LTE-M mode.
- AT+QSW - Saves the current modem settings.
- AT+COPS=1,2,"50501",8 - Locks the device to a specific mobile network and access technology.
- AT+QCFG="band",0,80000000,80000000,1 - Restricts the modem to the selected frequency bands for this network setup.
- ATZ - Restarts the device so the new settings can take effect.
NB-IoT Setup for Telemetry2U
(Telstra Network)
Configuration for Telemetry2U via the Telstra NB-IoT network:
- AT+SERVADDR=150.101.108.130,4483 - Sets the server address and port the device will send data to.
- AT+APN=telstra.m2m - Sets the APN for the Telstra NB-IoT network.
- AT+CGDCONT=1,"IP","telstra.m2m" - Sets the PDP context and APN for the modem. In this example it is included three times to improve the chance of the command being accepted reliably.
- AT+QBAND=2,3,28 - Restricts the modem to the selected NB-IoT bands for this deployment.
- ATZ - Restarts the device so the new settings can take effect.
Note:
These examples use Multiline Text mode with a line delay of 10,000 ms (10 seconds). This delay is important to ensure each command is processed properly before the next one is sent.
Connect and Configure Your Devices with Confidence
Use this guide as a quick reference when working in the field. Once connected via Bluetooth, you can check device status, update settings, and apply configurations using simple commands.