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Longform articles, the best of what the Hackaday writing crew has to offer.

How-To: Web Server On A Business Card (Part 1)

September 18, 2008 by 34 Comments

For years, Microchip PIC microcontrollers dominated; PIC16F84 hacks and projects are everywhere. The 8-bit 16F and 18F lines are supported by several coding environments and easy-to-build serial port programmers. Microchip’s 16-bit PIC24F is cheaper, faster, and easier to work with, but largely absent from hacks and projects.

We recently used a Microchip PIC24F microcontroller in a mini web server project, but didn’t find many introductory references to link to. In this article we’ll cover some PIC 24F basics: support circuitry and programming options. We’ll also talk about our favorite features, and how we figured them out. Our next article will outline a web server on a business card based on the PIC 24F.

Continue reading “How-To: Web Server On A Business Card (Part 1)” →

How-To: Make An RGB Combination Door Lock (Part 2)

June 20, 2008 by 19 Comments


In part 1 we showed you how to build your own prototype RGB keypad. Today we’ll show off some new ideas we worked on to create the project and turn it from prototype to fully functional battle station er door lock.

Continue reading “How-To: Make An RGB Combination Door Lock (Part 2)” →

How-To: Make An RGB Combination Door Lock (Part 1)

June 12, 2008 by 70 Comments


Part 2 can be found here

Putting a custom designed electronic lock on your space seems like a geek right of passage. For our latest workspace, we decided to skip the boring numbered keypad and build a custom RGB backlit keypad powered by an Arduino. Instead of typing in numbers, your password is a unique set of colors. In today’s How-To, we’ll show you how to build your own and give you the code to make it all work.

Continue reading “How-To: Make An RGB Combination Door Lock (Part 1)” →