The ESP01/03 Flash-Prototype Boards arrived from the fabricator. Good quality boards in a reasonable time. Although not Hackvana (Sorry Mitch, I’ll be back for the next batch!).

ESP-01-03 Flash-Prototype Board v1.3

Here you see two of the boards, one populated with an ESP-01 module, the other with an ESP-03 SMD module. Both work well but I have since found out that the ESP-03 module requires GPIO15 to be to be LOW during normal running or programing. Also, GPIO2 needs to be taken HIGH along with GPIO0 being taken LOW for programming. Hence the flying leads on the ESP-03 illustrated.

I am in the process of updating the board design to accommodate these changes and I’ve also taken the decision to make it fully SMD. This will make the board more compact and easier to use for IoT applications.

ESP-01-03 Flash-Prototype Board v1.4 SMD Gerblook