Description
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April USB Dongle 52840
A small and low-cost nRF52840 USB Dongle Form Factor with external antenna
Key Features
- nRF52840 flash-based ANT/ANT+™, Bluetooth Low Energy SoC solution
- Button and LEDs for user interaction
- Super Small Form Factor
- Onboard USB bootloader with buttonless support (Adafruit nRF52 Bootloader)
- Onboard external antenna
- USB support
Hardware Description
The nRF52840 Dongle can be used as a development platform for the nRF52840 SoC. It features user configurable LEDs and a button. In addition to radio communication, the nRF5240 SoC can communicate with a computer through USB.
The USB dongle is very similar with Nordic’s USB dongle PCA10059. But it has less pinouts and button.
Buttons And LEDs
The nRF528540 Dongle is equipped with a LED (LED1), a multicolor RGB LED (LED2), a user configurable button (SW1)
The LEDs and button are connected to dedicated I/Os on the nRF52840 SoC.
- SW1 – P1.06
- LED1 – P0.06
- LED2
- Red – P0.08
- Green – P1.09
- Blue – P0.12
SWD Interface
On the front side of the nRF52840 Dongle, there are connection hole for the SWD interface.
Pinouts P1 (from square soldering hole)
- GND
- VCC
- SWDIO
- SWDCLK
Firmware
The USB dongle nRF52840 is flashed with Adafruit nRF52 Bootloader and “BLE Peripheral Blink” from nRF5 SDK examples default
Downloadable Content
- Hardware Files
- Bootloader – search bootloader for pca10059
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