https://www.st.com/en/evaluation-tools/x-nucleo-idb05a1.html
X-NUCLEO-IDB05A1 | Product - STMicroelectronics
The X-NUCLEO-IDB05A1 is a Bluetooth Low Energy evaluation board based on the SPBTLE-RF BlueNRG-MS RF module to allow expansion of the STM32 Nucleo boards.
xnucleoproductstmicroelectronics