https://devzone.nordicsemi.com/f/nordic-q-a/2507/sync-two-notifications-using-nrf8001Hi there, We are using the nrf8001 and a arduino to read out two sensors. The two measurements should be at the same time and therefore are coupled to eachother. Is there a way to use two separate characteristics notification for both sensors anden-USTelligent Community 13Thu, 15 May 2014 09:14:15 GMThttps://devzone.nordicsemi.com/thread/10050?ContentTypeID=1Thu, 15 May 2014 09:14:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8820b4fa-b642-4e48-a2e4-7375ca1539c7run_ar<p>Hi,</p> <p>Unfortunately you are newer guaranteed that two notifications is sent in the same connection event. Most likely they would be sent in different events. To fix this you could either combine them into one notification as you already mentioned, or you could add a timestamp or counter to the packets to identify the value pairs.</p> <p>Best regards, Runar</p><div style="clear:both;"></div>