The STEVAL-IDB003V1 is an evaluation board based on BlueNRG, a low power Bluetooth® Smart IC, compliant with the Bluetooth® 4.0 specifications and supporting both master and slave roles. The STEVAL-IDB003V1 features a low power microcontroller STM32L on board. It is primarily meant to interface with BlueNRG but is also available for custom application development. The STEVAL-IDB003V1 has a USB connector for PC GUI interaction and firmware update. The footprint for a JTAG connector is available on the STEVAL-IDB003V1. When a JTAG connector is soldered (the connector is not mounted on the STEVAL-IDB003V1) it enables users developing a custom firmware on the STM32L microcontroller. For a detailed explanation on how to use the STEVAL-IDB003V1 please refer user manual UM1686: BlueNRG development kit.