Hi Ken,
Many Thanks for the clarification.

It is now clear to me on the usage of these rails. And thanks for suggesting using VBatt. I will use it for connecting nRF24L01+.

Best Regards,
Manoj Rathod.

Hi,
I am new to tinyduino and have recently purchased TinyDuino Processor Board (with Battery Holder), TinyShield USB & ICP and Proto Board 1.

I have stacked up the Processor Board + USB Shield + Proto board and connected the micro USB from computer. My blink  program compiled and executed correctly.

I extracted wires from the Proto Board 1 to connect another device (nRF24L01+) which operates on 3.3v supply. Although, I am unable to get the supply 3.3v on the proto board due to which I am unable to test nRF24L01+ any further. I then removed the micro USB and connected a CR1632 battery. Though still not able to get 3.3v to nRF24L01+.

Is there something I am missing?

Thanks a lot for your help.

Regards,
Manoj.