1.8 KiB
@defgroup boards_lsn50 Dragino LSN50 LoRa Sensor Node @ingroup boards @brief Support for the Dragino LSN50 LoRa Sensor Node
Introduction
This board is a waterproof board with a LoRa SX1276 radio.
Documentation of the board is available here.
More documentation is available here.
The datasheet can be downloaded here.
Detailed schematics are available on GitHub:
Flashing the board
To flash the board, use an external ST-Link programmer/debugger, plugged on
available SWD pins: PA13 (SWDIO), PA14 (SWCLK) and NRST (this pin is not
exposed with v1.0).
Ensure SW1 is on flash position.
Then use the following command:
make BOARD=lsn50 -C examples/basic/hello-world flash
On the v1.0 version of the board, no NRST pin is exposed so one has to press the
reset button during flash and release it when OpenOCD prints adapter speed: 240 kHz
the first time.
The reset button must also be pressed a second time after flashing to start the new
application.
STDIO
STDIO is connected to pins PA9 (TX) and PA10 (RX) so an USB to UART adapter is
required. Use the term target to open a terminal:
make BOARD=lsn50 -C examples/basic/hello-world term
If an external ST-Link adapter is used, RX and TX pins can be directly connected to it. In this case, STDIO is available on /dev/ttyACMx (Linux case).