https://devzone.nordicsemi.com/f/nordic-q-a/6474/reset-signal-of-nrf8001Hello. I use BLE Shield V.2.1 of RedBearLab.com for Arduino. The shield equipped nRF8001. After about 62ms from reset nRF8001 by putting Low signal in Arduino pin 4 (set it on a reset pin), at first main board (NUCLEO-L053R8) recieve &quot;0x00 0x82en-USTelligent Community 13Sat, 26 Sep 2015 18:27:24 GMThttps://devzone.nordicsemi.com/thread/22585?ContentTypeID=1Sat, 26 Sep 2015 18:27:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d41f01f0-47c2-4447-8993-824e2204c185David Edwin<p>You need to verify that your SPI configuration is indeed OK, by using the ACI Test command and the Echo command. The Device Started Event is ok after a reset but you are seeming getting it twice, and the first one appears to be malformed (62ms) and then you get a second one at 510ms</p> <p>I would also suspect the the nRF8001 is getting reset a second time either due to a power supply glitch so I would verify that there is enough power for the nRF8001.</p> <p>Take a look at the p<a href="https://github.com/NordicSemiconductor/ble-sdk-arduino/blob/0.9.7.beta/documentation/libraries/BLE/nRF8001-Porting-ACI-Library.md">orting guide for more input</a>.</p> <p>Apologies for the delay and assume that you were able to overcome this issue.</p><div style="clear:both;"></div>