Is the following line missing the quotes (“) before the file name? #include CONFIG_MBEDTLS_CFG_FILE" Should be #include “CONFIG_MBEDTLS_CFG_FILE"

Jie, Which version of Zephyr are you using? I am still on 1.8.0 as I want to keep a stable version while doing my development. Looking at the code for 1.9.1, I see that there are many changes in the C

Jie, Great. I believe that cleaning up the CONFIG setting would fix the tinyTile build. Graham

Jie, My board is in use at this time so I cannot do this test for you. However I did look at the Bluetooth beacon sample and I see that it is setting some Bluetooth related CONFIG settings that are no

Jie, I do not have the TinyTile board so I cannot try flashing it. However I do have the DFRobot CurieNano which is a similar board. I have no problem flashing this board. I used the instructions (DFU

I meant to also say to look at projects for Arduino/Genuine 101 as tiny Tile is a scaled down version of this board.

As tinyTile is basically just a version of the Intel® Curie™ module, you can look for projects under Curie. Yes. It has additional pins but the rest is the same Graham