Laird Lyra S, User Manual

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All kits contain the following items:
Development Board Contains soldered Lyra S module and exposes all available hardware interfaces.
Power Options
USB cable (x1)
– Type A to micro type B. Also provides serial via onboard USB – UART chip
External BLE
dipole antenna
External antenna, 2 dBi, FlexPIFA (Laird Connectivity part #001-0022) with integral RF coaxial
cable with 100 mm length and IPEX-MHF4 compatible RF connector. See
11 Routing RF to
External Antenna on J3 RF connector
The Lyra S Development Kit has been designed to simplify IoT development with the Lyra S wireless module. The kit includes
a mikroBUS™ socket and Qwiic® connector, allowing users to add features to the kit with a large selection of off-the-shelf
boards.
Programming the Lyra S Development Kit is easily done using a USB Micro-B cable and the on-board J-Link debugger. A USB
virtual COM port provides a serial connection to the target application, and the Packet Trace Interface (PTI) offers invaluable
debug information about transmitted and received packets in wireless links.
Connecting external hardware to the Lyra S Development Kit can be done using the 20 breakout pads which present
peripherals from the Lyra S such as I2C, SPI, UART and GPIOs. The mikroBUS socket allows inserting mikroBUS add-on
boards which interface with the Lyra S through SPI, UART or I2C. The Qwiic connector can be used to connect hardware from
the Qwiic Connect System through I2C.
The following key hardware elements are included on the Lyra S Development Kit:
▪
Lyra S Wireless Module with 76.8 MHz operating frequency, 2.4 GHz internal antenna or optional external antenna
(via RF trace pin) for wireless transmission, 512 kB kB flash, and 32 kB RAM
▪
One LED and one push button
▪
On-board SEGGER J-Link debugger for easy programming and debugging, which includes a USB virtual COM port
and Packet Trace Interface (PTI)
▪ MikroBUS™ socket for connecting click boards™ and other mikroBUS add-on boards
▪
Qwiic® connector for connecting Qwiic Connect System hardware
▪
Breakout pads for GPIO access and connection to external hardware
▪
Reset button
▪
Software Development Selection Switch SW1 to select between 2 options (AT/BGx or C-DEV)
–
SEE NOTE BELOW .
Note: Versions of the development board silkscreen prior to v2.3 may list SW1 as BGx or AT/SWO. On these
boards, BGx should be understood to be AT/BGx and AT/SWO should be understood to be C-DEV. See 6
Software Development Selection Switch SW1.