In his last video, GreatScott was not successful in building a Walkie Talkie project and suggested that we use his schematic to find out the problem.
Because I like his work, and I love all sorts of wireless gadgets, I decided to give it a try. Debugging anyway is an essential skill of a Maker because errors help us to learn. And to make it clear: GreatScott did not make an obvious nor a dumb mistake as he suggested.

Links:
GretScott's video: https://youtu.be/SZYwvvh6m-s
NRF24L01: http://s.click.aliexpress.com/e/bz2wnS12
Arduino Pro Mini 3.3V: http://s.click.aliexpress.com/e/baQA53Eo
or: http://bit.ly/2KbPqTN
or: B01JA58DHM
Max1458: http://s.click.aliexpress.com/e/bhAmQjMy
3.3/5V FTDI adapter: http://s.click.aliexpress.com/e/c1fA5Yh6
or: http://bit.ly/2j36crg
Microphones: http://s.click.aliexpress.com/e/cFbmk8Ak

Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot

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