GETTING STARTED
Dragonfly
™
Nano MTQN-MNG3-B01 Device Guide
17
Chapter 6 – Getting Started
Developing with an MTQN in Mbed
The MTQN ships with AT pass-through firmware, which directly connects the cellular radio to a serial port made
available via micro USB connector J6 on the MTUDK2-ST-CELL developer board. The firmware:
Runs at 115200 baud by default to match with the cellular radio’s default baud rate.
Prints debug messages from the debug port at 115200 baud.
Allows users to increase or decrease the application’s baud rate by entering a plus (+) or minus (-) character
on the USB debug port. Issuing a plus or minus character on the USB debug port changes the external serial
port speed as well as the speed of the link between the processor and the radio. The speed of the USB
debug port on reset is always 115200 to match the radio’s default regardless of the baud rate used at the
time of reset.
Uses RTS/CTS flow control on the serial connection to the radio and on the external serial connection.
Enables RTS/CTS flow control on terminal emulators used with the AT pass-through firmware.
Mbed Documentation
ARM Mbed is a free, open-source platform and operating system for embedded devices using the ARM Cortex-M
microcontrollers. The Mbed website provides free software libraries, hardware designs, and online tools for rapid
prototyping of products. The platform includes a standards-based C/C++ SDK, a microcontroller HDK, and
supported development boards, an online compiler and online developer collaboration tools.
Programming the MTQN Microcontroller
With the MTQN and the MTUDK2-ST-CELL developer board, use the ARM Mbed ecosystem to program the
microcontroller. Compile in the cloud or locally, copy the resulting binary file to the Mbed USB drive, and reset the
MTQN-MNG3.
MTQN software is open source.
Useful Links
Description
Link
MTQN Mbed page:
https://os.mbed.com/platforms/MTS-Dragonfly-Nano/
Explore Mbed:
MTUDK2-ST-CELL developer
guides (see Manuals for
different versions)
https://www.multitech.com/models/94557065LF
Documentation on Mbed:
https://os.mbed.com/docs/latest
Serial Flash Datasheet (pdf):
(refer to P/N M25P16)
Additional Information:
https://www.multitech.com/brands/multiconnect-dragonfly-nano
Based on current research, cellular devices do not pose a significant health problem for most pacemaker wearers.
However, people with pacemakers may want to take simple precautions to be sure that their device doesn't cause
a problem.