Arduino Nano 33 IoT : Cannot upload TLS certificates

Other Hardware 3rd Party Boards
1

Hello,

I have been working on the Arduino Nano 33 IoT for the past week and have successfully implemented MQTT publish and subsrcibe.
I want to store my TLS certifcates in the on-board crypto chip. But i have got no success with the NINA fimrware updater. I get the following error : "Programmer not responding" on pressing Test Connection. I have followed all the steps multiple times but still the same result.

Can anyone help me with this?

Thank You.

2

Are you able to upload a standard sketch to the board with the exact same settings selected in the Arduino IDE?

3

Hi Pert,

Yes I am able to upload any sketch. After uploading the "FirmwareUpdater" sketch to the Nano 33 IoT board I get the following error on Serial Monitor: "Unable to communicate with ESP32 boot ROM!"

P.S. I know I am supposed to keep the serial monitor closed but stumbled upon this while trying to solve the problem.

4

Would you mind sharing your MQTT code? I'm trying to do the same thing ...
Will