KNoT Dongle¶
Overview¶
The KNoT Dongle (nRF52840-PCA10059) is a low-cost board manufactured by Nordic Semiconductor and it has a user programmable RGB LED.
Dongle - nRF52840 (PCA10059)¶
More information about the board can be found at the nRF52840 Dongle website and Zephyr nRF52840-PCA10059 website. The Nordic Semiconductor Infocenter contains the processor’s information and the datasheet.
Supported Features¶
The Dongle hardware provides support for the following devices:
ADC
CLOCK
FLASH
GPIO
I2C
MPU
NVIC
PWM
RTC
SPI
UART
USB
WDT
Connections and IOs¶
Dongle - Connections and IOs (Credit: Nordic Semiconductor)¶
Warning
The reserved buttons and LEDs should not be controlled by the user.
Buttons¶
Part |
Description |
Pin |
Permission |
|---|---|---|---|
SW1 |
Factory Reset |
P1.06 |
Reserved |
RESET |
Reset |
P0.18 |
Reserved |
LEDs¶
Part |
Description |
Color |
Pin |
Permission |
|---|---|---|---|---|
LD1 |
Status |
Green |
P0.06 |
Reserved |
LD2 |
Application |
Red |
P0.08 |
Available |
Green |
P1.09 |
|||
Blue |
P0.12 |
Analog Input¶
Name |
Pin |
Permission |
|---|---|---|
AIN 0 |
P0.02 |
Available |
AIN 5 |
P0.29 |
Available |
AIN 7 |
P0.31 |
Available |
Flash instructions¶
To flash the Dongle is necessary to enter the bootloader mode by pressing the RESET button. The red LED (LD2) should start a fade pattern when the bootloader starts running. Use nRF Connect or KNoT CLI to flash the image to your board.
Reset button used to enter DFU mode.¶