The economic depression that followed World War I in Germany prompted Doctor Hartmann to find work in China , and Erich spent his early childhood there. The family was forced to return to Germany in , when the Chinese Civil War broke out. Alfred Hartmann was captured by the British and spent four years as a prisoner of war. The Hartmanns also owned a light aircraft but were forced to sell it in as the German economy collapsed. On 1 March , he progressed to the Luftkriegsschule 2 Air War School 2 in Berlin-Gatow , making his first flight with an instructor four days later, followed in just under three weeks by his first solo flight. There, Hartmann learned combat techniques and gunnery skills.

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Erik Bartmann is a bestselling author who has written copiously about programming and electronics. It was published in German by Elektror-Verlag in November Erik has kindly given us an interview where he explains why he became fascinated about ESP in the first place, and what his readers will learn about our chip by reading his book.

Erik also talks about his writing philosophy, as well as whom his book is addressed to and why. Let me start by asking you this: how did you become involved with ESP in the first place?

Erik Bartmann: To be honest, it was its price! My primary intention was to check if these modules worked properly together with an Arduino board. And they worked! But when I started writing that chapter I realized there was more to say. So, I decided to write a book about ESP Erik Bartmann: As a maker I am used to exploring new hardware. And as an experienced author I am able to find out technical possibilities very quickly.

But to be honest, ESP was not easy to discover. I finished writing up my book in September The book is entirely associated with memories of my father.

Was writing an exhausting or energizing process for you? I had the same feeling when I started writing my Arduino book in , and when I wrote the first Raspberry Pi book for the worldwide audience in All in all, writing was an energizing process for me! Erik Bartmann: I always write my books for curious people, regardless of their background knowledge.

I try to respond to the curiosity I personally have about my topics by writing books about them. I always try and combine the basics of electronics with concrete cool hacks.

My intention is to provide makers with information exactly when they need it. I am a maker, and I write for makers and for people who want to become makers. Erik Bartmann: The fact that you can use ESP as a standalone device; that you can build a heater-monitoring system with that module for only 10 US dollars, and also build some additional electronics standards.

At that point, I am tired of writing and want to do other things; not reading again and again the same stuff. Can you please write it out here, and then answer it? Can you tell us what is your next book going to be about? Erik Bartmann: Actually, I am revising my Arduino book.

It will be published in June We wish you the best of luck for your future projects and we really look forward to reading a book about ESP32 from you in the near future. Erik Bartmann: Thank you very much for giving me the opportunity to answer your questions!

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