# flash nrf52dongle
- build with dongle build target (dont forget dongle .conf file) 
- nrfutil install nrf5sdk-tools 
- source flash_dongle.sh

# build for bl654pa
- toolchain
- nrf52840dongle_no_usb
- base config: prj.conf
- extra conf: iso.conf,internal_osc.conf
- bl654_gpio_uart.overlay