52840 Dongle is a low-cost BLE debugging tool. The chip used is Nordic's Soc chip nRF52840-QIAA.
Dongle's main role is to work with the desktop version of nRFConnect. The desktop version of nRF Connect is a desktop application of nRF Connect (this is relative to the mobile terminal, nRF Connect also has a mobile APP).
Users can use the desktop version of nRF Connect to familiarize, develop and test Bluetooth low energy devices. In the desktop version of nRF Connect, we can set up local devices, connect slave devices and discover their services, maintain connections and connection parameters, or pair devices As well as changing the server settings of the local device, he also provides detailed logs for easy troubleshooting.
Product Features
1. With a transparent shell, it is easy to carry. It can be used as a development and debugging tool with the desktop version of nRF Connect. It can also be used as an nRF52840Mini development board.
2. Standard 4pin SWD debugging interface, compatible with J-LINK, ST-LINK and other emulators, can be directly programmed and simulated through the matching adapter board, avoiding the trouble of using DuPont cable connection.
3. Integrated Balun, high-efficiency patch ceramic antenna, accurate adjustment of over-frequency deviation, superior wireless performance.
4, an on-board indicator and an RGBLED, full-color display
5. An on-board user button is more convenient when used as a development board.
6. Wireless compatible with Nordic 2.4GHznRF24Lx series chips and more products. But note that it can only interact with BLE devices when applied to the desktop version of nRF Connect.
7. The narrow frame design will not occupy other USB locations on the computer and affect the access of other USB devices.