This board will permit you to connect the LS53L1BT bluetooth board to a STLink from STMicroelectronics. This will makes easy the programming of the Bluetooth board.
Note that the version of STLINK compatible with this adapter is the STLink/V2, the version ISOL dosn't have the power supply +3V3 used for the LS53L1BT.
Please remove the Coin Cell battery before programming.
For more info about the STLink follow this link : ST-link-v2 at STMicroelectronics
Note : this kit is not soldered