From bLE RF sniffer user guide:
To set up the Sniffer you will need one of the following pieces of hardware:
• nRF51822 Evaluation Kit (PCA10001) and a mini USB cable
• nRF51422 Evaluation Kit (PCA10003) v3.0.0 or later and a mini USB cable
• nRF51422 Development Kit (PCA10028) v1.0 or later and a mini USB cable
• nRF51822 Development Kit dongle (PCA10000)
Can I use the PCA10031 dongle? I would buy this: www.digikey.it/.../5022448
Thanks in advance.
Andrea