Bluetooth 4.0 (BLE 4.0) CC2540 USB Dongle

Question 1: What is the usefulness of CC2540USBDongle?

A: First of all, CC2540dongle is a Bluetooth 4.0 adapter, another very important one is used as a PacketSniffer, the use of CC2540USBDongle with PacketSniffer to capture wireless packets, which is very helpful in the development of wireless protocols. For example, two CC2540 mutual communication, but the receiver has no data, it is necessary to analyze CC2540USBDongle is not sent to the sender data or send the data is not correct?

Question 2: The CC2540USBDongle can be re-programmed?

A: Of course, because the dongle's debug mouth using the standard 2 * 2.54mm interface, search simulation simulator can be directly connected to the board to reprogram the wireless debug adapter board. And CC2540USBDongle reserved on the six GPIO, 2 user buttons and 2 user LED, can be used as CC2540 development board !