@ileneken3 have you returned the jumpers back?

@omemanti said in [nRF5 action!]Maybe that's the €3 solution for unlocking.

BMP is enough to unlock. BluePill costs ca. €2 and it's easily convertable to BMP

@mr_red said in nRF5 action!:

Is there any way to do this over the programmer?

Not in Arduino. In KEIL you can use RTT (pretty cool stuff, debug via SWD)
But if you just want to decrease a number of programmers, you can use Black Magic Probe, made from BluePill ($2 at Ali). It is 2-in-1 SWD and USB-UART converter on one PCB

Can you pls. upload the design files?

@rozpruwacz said in my first nrf5 ... NRF51/NRF52 which is better for MySensors ?:

So smd modules are no good for me

If so, your only choice is nrf52DK. Solid investment given you get jlink programmer with it

how do you guys solder nrf52840 modules without reflow oven?
they have many pads at the bottom

@hugob said in my first nrf5 ... NRF51/NRF52 which is better for MySensors ?:

• The programmer on the Arduino IDE is not working for me ("No J-Link" error, while there is a J-Link interface available), so I export a HEX fle form Arduino IDE and program the board with the nRFConnect tool from Nordic.

if read sandeep's notes on Githun, you'll find you have to replace the driver with Zaddig but then Jlink will stop functioning in Keil.
That's why I use BMP for Arduino-style programming as it has its own drivers and do not ruin jlink installation

@rozpruwacz I would strongly encourage you do start with nrf52832 ebyte mosule coupled with Nevrdie's breakout board. It is a) proven b) cheap c) breadboard friendly

@omemanti that's strange, I use the methos regularly and it worls fine.
Oh! Actually, sandeep's installation messes up Jlink drivers so they require reinstall for the method to work.
That's why I am using arduino nrf5 with BMP to completely separate Arduino from Jlink

@omemanti actually, all you need is to issue the following command:
nrfjprog.exe --recover