Digital LED Thermometer with Microcontroller AVR ATtiny13

Build a digital Celsius/Fahrenheit thermometer from only a few, inexpensive parts which are readily available! Temperature range is from -55 up to +125 °C (-67 ... 257 °F) at great accuracy. Display is done through LEDs. Key components are a microcontroller Atmel AVR ATtiny13 and a digital temperature sensor Dallas/MAXIM DS18B20. Book gives in-depth description and explains the mc program. More

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About Michael Schramm

Are you interested in electronics? I am! Born in Germany 1961, I witnessed the unbelievingly quick, fascinating development of electronics parts from radio valves and simple germanium transistors up to ever more complex modules like microprocessors and microcontrollers. In my teen years, I was an enthusiastic electronics hobbyist.

Some years later, I began first playing with, then programming home computers. I loved the Sinclair ZX81 and Spectrum! During my information technology studies (informatics), I learned all these theoretical basics and how to write efficient computer programs.

With the appearance of microcontrollers, the (small) computer and its program united on a single tiny chip. Ideal for anyone interested in electronics and programming like me! This technology is really great since most electronics applications (if not just being a LED flashing device) benefit from use of microcontrollers. You need fewer parts, combine analog and digital processing, gain higher precision in measuring and controlling, get easy-to-use adjustment options and so on.

But that's true of course only if you find the right way of utilizing and programming the single-chip micro computer. After having taken the first steps on this path (and producing flashing LEDs and beeping loudspeakers in most cases), you may feel a little bit clueless on how to proceed. That's the point when my small electronics projects come into play and give you new suggestions through somewhat more complex circuits and/or programs with in-depth explanations.

My ebook series 'Small Electronics Projects with Microcontrollers' has just started. I'll publish the books in English and German language. Hence, please come back again from time to time and see more volumes having appeared.

I hope you like my ideas. I wish you every success in making your electronics projects.

Videos

PETling operated thermometer in action
As mentioned in the book's description, the perfboard-built thermometer circuit and a lithium battery may be put into a small PETling. See it here in action!

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