• nRF52840
• ARM M4 64 MHz
• 1024 KB ROM - 256 KB RAM
• Bluetooth 5, Mesh
• 802.15.4, Thread, Zigbee
• USB 2 GetStarted)

Applications #

• custom mesh coordinator

nRF52840 Dongle #

Pinout #

Serial Wire Debug #

• the usb dongle is referred to as PCA10059 which in projects usually shifts the app to offset 0x1000 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