Eloquent universal receiver for your home entertainment equipment

home-entertainment-universal-receiver

We're really starting to enjoy the home entertainment control hacks which use a universal receiver to act on commands from any remote. This one is especially interesting as it uses a single remote to control the system but rolls in lots of extras. Looking at the receiver itself the white plastic dome of the PIR sensor should raise an eyebrow. Since the cable box takes a while to turn on [Ivan] … [Read more...]

LCD-based QR clock

new-take-on-qr-clock

Here's a new take on the QR clock concept that uses an LCD display. The concept comes from the work [ch00f] put into his two versions of a QR clock (both of which used LED arrays). The time of day is encoded using the Quick Response Code standard. This version generates a new code each second which encapsulates date, hour, minute, and second information. If you look at the image on the left … [Read more...]

Playing with DSP and building a guitar pedal

pedul

Building guitar pedals has come a long way from hooking up a few transistors and building a simple boost circuit. [Cloudscapes] has been working on a Anti-nautilus auto glitch, auto repeat pedal, and if you're looking for something that sounds like a spaghetti western soundtrack skipping on a record player, we couldn't think of anything better. [Cloudscapes] was already familiar with 8-bit … [Read more...]

Putting an Atari POKEY in your pocket

pokey

The Atari POKEY served as the main I/O chip on the venerable Atari 400/800 and XL/XE 8-bit computers. While a chip designed to get voltages from game paddles and scanning a matrix of keyboard switches wouldn't normally be remembered 30 years later, the POKEY had another function: generating very, very distinctive music and sound effects for those old Atari games. [Markus Gritsch] wanted a … [Read more...]

Maximite harkens back to the days of BASIC

maximite

Any self-identified geek that spent some time in the 80s will tell you how they used to type out programs into their 'microcomputer' with BASIC. It was a simpler time when a computer's raison d'etre was simply being a BASIC interpreter. These days are long past us now; you can't simply turn on a computer and have it load a BASIC prompt anymore. This is where [Geoff]'s Maximite single board … [Read more...]

Build a standalone BASIC interpreter

maximite-basic-interpreter

Here's a photo of the circuit board for the Maximite, a BASIC interpreter that [Geoff] built. The design idea was sparked when he was exploring the possibilities of the PIC32 family of chips. [Geoff] wanted to write about the hardware for a magazine article but needed an actual product to really show it off. The design can utilize one of two microprocessors, a PIC 32MX795F512H or 32MX695F512H. … [Read more...]

chipKIT Sketch: Mini Polyphonic Sampling Synth

chipkit-synth-title

In our hands-on review of the Digilent chipKIT Uno32, we posed the question of what the lasting appeal might be for a 32-bit Arduino work-alike. We felt it needed some novel applications exploiting its special features…not just the same old Arduino sketches with MOAR BITS. After the fractal demo, we’ve hit upon something unique and fun… … [Read more...]