What is the approximate Flash memory and RAM usage by the BLE stack?https://devzone.nordicsemi.com/f/nordic-q-a/14361/what-is-the-approximate-flash-memory-and-ram-usage-by-the-ble-stackHi, I would like to know what the approximate Flash memory and RAM usage by nRF51 chipset would be when using the BLE communication (Let&#39;s say I want to send and receive 2 Bytes at 10 HZ) so that I know how big my code size can be in practice and howen-USTelligent Community 13Tue, 07 Jun 2016 18:08:12 GMTRE: What is the approximate Flash memory and RAM usage by the BLE stack?https://devzone.nordicsemi.com/thread/54832?ContentTypeID=1Tue, 07 Jun 2016 18:08:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e431dcf9-7262-4a39-b1ba-bf8e1cae151eWojtek<p>ROM usage is not approximate - it is exactly specified in softdevice specification (and example projects), different for each softdevice. For RAM usage - for older SoftDevices (S110/S120) value is fixed (also specified in specification and examples). For newest softdevice s13x v 2.0.0 it is calculated in the moment of enabling it - just connect some debug output (RTT/UART) and check the value on terminal... it varies of SD configuration how much ram it would need. sd_ble_enable returns information about RAM.</p><div style="clear:both;"></div>