- nRF52840
- ARM M4 64 MHz
- 1024 KB ROM - 256 KB RAM
- Bluetooth 5, Mesh
- 802.15.4, Thread, Zigbee
- USB 2 GetStarted)
Applications #
nRF52840 Dongle #
Pinout #
Serial Wire Debug #
- the usb dongle is referred to as
PCA10059
which in projects usually shifts the app to offset0x1000
as openbootloader usage is expected - With serial wire debug, it’s possible to flash applications at same address as the
PCA10056
which is at address 0x0000 - recovering the openbootloader mode would then require to reflash the MBR with any nRF SDK project
make flash_mbr
LEDS #
- LED1 Green :
P0.06
- LED2 Green :
P0.08
- LED2 Green :
P1.09
- LED2 Blue :
P0.12
pogo pin adapter #
- Pogo Pin P75-E2 Dia 1.3mm Length 16.5mm
micro python #
gallery #
bootloader options #
- nRF SDK v16.0.0 bootloader
- MCU boot - zephyr bootloader
- UF2 bootloader