User Manual

1. The normal use of Holyiot-21017:
we will explain in detail the normal use of "Holyiot-21017" as a USB device with
Bluetooth host function.
Developers need to download and correctly install the newer Nordic official PC
version software, "nRF-Connect", the link is as follows:
https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-
Connect-for-desktop.
After opening "nRF-Connect", the interface is as follows:
The interface after "nRF-Connect" is opened
Open "Bluetooth Low Energy", then insert "Holyiot-21017", after the driver
installation is complete, select the USB device "USB: Nordic Semiconductor
nRF52 Connectivity":
Click to select USB device