Tag Archive: microcontroller

ATtiny2313 Based Thermostat Final Update

Finally, I had some time to do video on my thermostat project, and to upload all the project files.

USB Audio Multiplexer

On my desktop PC I have a speakers and a headphones. Usually I use headphones, but when I need to switch to speakers I need to physically plug in speakers instead of headphones to my PC’s soundcard. I wanted to solve this problem for a long time, but never get around of that until recently …

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ATtiny2313 – Based Thermostat Project Update #2

First fully working revision of firmware is finished, which takes all 2k of ATtiny2313′s memory. I wrote it in C, and I wanted to implement some other functionality, but unfortunately I’m out of space(of course if I would want to, I can put there ATtiny4313, which is identical to ATtiny2313, but has 4k of memory). …

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ATtiny2313 – Based Thermostat Project (part 3)

ATtiny2313 – Based thermostat project update. I wrote a small test firmware for it to test if everything is wired up the right way and to test it’s current consumption. And it turns out that there were some mistakes.. Also it’s current consumption is well below 150mA that I was expecting.

ATtiny2313 – Based Thermostat Project (part 2)

So I’ve came back to my ATtiny2313 – based thermostat project, that I’ve started to work on some time ago. And today I have assembled a first prototype (actually I only need a couple of these). If you haven’t seen video I’ve made on this project, you can watch it here: Part1 Video. It’s based …

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Using Microcontrollers (Atmel AVR and Microchip PIC)

Many people using Arduino or some other development board in their projects, instead of making their own board with microcontroller because they simply don’t know how to design PCB with microcontrollers. What microcontrollers need in order to operate? This time I will be focusing on two most popular 8 bit micro architectures: Atmel AVR and …

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DIY PIC16F883 Development Board

Few month ago I wanted to try to write software for Microchip PIC16F883 microcontroller and I couldn’t find simple development board for it. And so I made my own.

ATtiny2313 – Based Thermostat Project (part1)

My parents growing their own organic food and they asked me to deal with winter temperatures problem in the storage room. It gets really cold here, in Ukraine. Some winters have even lower temperatures than -30°C (-22°F). So right now I designing a simple thermostat for keeping temperature at about 5-7 degrees C above zero. …

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Interfacing Microcontroller: Darlington Transistors

In this video I’ll tell you what is darlington transistors, how to use them to switch medium current loads with microcontroller and what downsides they have. Also you’ll find out about darlington arrays. Of course there would be small demonstration of controlling different loads at the end of this video. In case if you don’t …

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