How to use the ESP8266 for wireless communication

More than often enough parts of projects will have to communicate with each other or external devices. This can either be done by directly connecting the devices with cables but sometimes it’s more convenient to wirelessly connect the different pieces of hardware. This article will show you how to use the ESP8266 and it also includes two examples for using it with a Raspberry Pi and Arduino boards.

Continue reading How to use the ESP8266 for wireless communication
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How to use an EEPROM to permanently store data with your Arduino

Some Arduino boards have a built-in EEPROM that can be written to and read from in your programs. I not only want to discuss how that’s possible but I also want to show you an alternative while talking about EEPROMs and memory in general.

Continue reading How to use an EEPROM to permanently store data with your Arduino

Nixie tube thermometer – Part 3

In the third part of this series, I want to talk about the PCB design and the custom case for the electronics. I’ll also revisit the transistor array, which I didn’t finish in part 1 of this series and I test the completed project and show it in action. Continue reading Nixie tube thermometer – Part 3

VGA signal generation using discrete electronic components

It’s been a while since I published this series of articles on nerdhut about monochrome video signals for an old Macintosh CRT. I wanted to post a short follow-up article about VGA and how to generate such signals. This article will also be a follow up to the custom CPU series and it will be another step towards the custom computer, I always wanted to design and build.

However, in this article, I only want to take a look at how the standard 640×480@60Hz VGA-Signal can be created using a screen testing device, made from discrete electronic components, which can be used to test monitors without the need of a computer being around. Continue reading VGA signal generation using discrete electronic components

Nixie tube thermometer – Part 2

In this part of the series I’ll discuss how to read data from the temperature sensor, make the Arduino react to claps and I’ll also go over the software that controls all these features and then displays the right numbers on the Nixie tube display. Continue reading Nixie tube thermometer – Part 2

Nixie tube thermometer – Part 1

Years ago I bought a bunch of IN-14 Nixie tubes from the Ukraine and I had them lying around since then. I always wanted to use them for a custom device and so I decided to finally tackle this project and build something that utilizes this almost ancient way of displaying digits, but for now I didn’t want to build a Nixie tube clock (I thought that was a bit of a cliché thing to do and for now I’ve had enough of fancy hipster clock projects), so I thought: Why not build a thermometer for my room that can be activated by clapping? Continue reading Nixie tube thermometer – Part 1