While an Arduino library isn't necessary to utilize the CodeLess™ AT commands for the DA14531MOD Bluetooth module, we have created an unofficial Arduino library to help users get started. As an official library, users will need to manually download and install the library into the Arduino IDE; it will not be available through the Library Manager.
!!! tip "Manually Download the Arduino Library"
To manually download and install the library, the files can be accessed from our GitHub repository or the *.zip can be downloaded by clicking the button below.
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[:octicons-download-16:{ .heart } Download the Arduino Library](./assets/CodelessBLE.zip){ .md-button .md-button--primary }
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Installing an Arduino Library
!!! tip In this Arduino library, there are several examples for configuring the Bluetooth connectivity of the DA14531MOD.
However, we also include a `SerialPassThrough` example. Once programmed on the RA6M5 Thing Plus, it allows users to directly interface with the DA14531MOD's UART port through the board's USB connection using a [serial terminal](https://learn.sparkfun.com/tutorials/112). Therefore, enabling users to experiment with the CodeLess AT commands and develop their own BLE connectivity solution.