.. zephyr:code-sample:: ble_central_past :name: Central Periodic Advertising Sync Transfer (PAST) :relevant-api: bt_gap bluetooth Use the Periodic Advertising Sync Transfer (PAST) feature as the sender. Overview ******** A simple application demonstrating the Bluetooth LE Periodic Advertising Sync Transfer functionality as the sender. Requirements ************ * A board with Bluetooth LE 5.1 support Building and Running ******************** This sample can be found under :zephyr_file:`samples/bluetooth/central_past` in the Zephyr tree. Use the sample found under :zephyr_file:`samples/bluetooth/periodic_adv` on another board that will start periodic advertising, to which this sample will establish periodic advertising synchronization. Use the sample found under :zephyr_file:`samples/bluetooth/peripheral_past` in the Zephyr tree on another board that will advertise and await a periodic advertising sync transfer. See :ref:`bluetooth samples section ` for details.