case is made from plywood found on the streets. there is some 5mm acrylic too, those i was buying cheap a4 size on ebay. wooden frame is held without glue, mostly little 3mm screws. board are mounted on 5x5cm, 10x10cm, 15x10cm wooden pieces,...
This HOW-TO will help you easily set up a PogoPlug to run NetBSD without needing to disassemble the device and solder on a serial adapter. When you're done, your PogoPlug will still be able to be booted into GNU/Linux but will automatically boot into...
The operating system I will describe, called TinyRealTime (TRT) was originally written by Dan Henriksson and Anton Cervin (technical report). (See also Resource−Constrained Embedded Control and Computing Systems, Dan Henriksson, 2006). I extended it,...
An original xbox controller has 8 channels of low-res analog, 4 channels of hi-res analog, and 8 channels of digital inputs.I tied the low-res channels to my front row of pedals. Soldered a wire to a bit of pcb, ran the wire through the resistive...
The arduino library supports A/D conversion at about 13 KHz, not fast enought for a useful audio-rate oscilloscope. Rewriting the acqusition loop to directly access the ADC reqisters speeds up conversion (including loop overhead) to about 688,000 samples/sec,...
After looking over the schematic of a reverse engineered power inverter I thought to myself "Self this is not that complicated". So I set about making my own BAD A$$ POWER INVERTER. My Goals are as follows.1. Pretty Easy to build with normal...
The photo of the horrible wires all over the bottom of the board is from the left channel amplifier board and was taken when I got it. The first thing I did was remove all that and put it back to as near stock as possible (some of the tracks had gone,...
I decided to build a FP with 8-bit exponent and 9-bit mantissa (and with no NANs, infinities, denorms or rounding).The sum of the bit-lengths (plus one sign bit) means that the FP number fits into a 18-bit M4K block word on the CycloneII FPGA. The 9-bit...
Audio filter implementations All of these implementation use a multiply-and-accumulate (MAC) scheme to compute each of the terms on the right side of the following equation, then divides by a(1), if necessary. Some of the implementations are serial,...
They say you only need to put your AquaFarm in a sunny window shade, and that may work in Southern California, but here in New England, you can't grow much without a decent grow light. Most grow lights available are 1) Bulky 2) Ugly 3) Expensive...
by tEEonEIntroduction I love racing games, and along with the Xbox One came Forza 5!The few steering wheels for XB1 are super expensive and bulkyThe XB1 controller is a new device and i was dying to take one apartI had a spare SRW-S1 lying aroundI thought...
Features:Wind up rotary encoder with wind up clicking sound effect.External input for button or other trigger mechanismDeep sleep mode when not playing to conserve battery for many years of life on 2 AA batteriesCan hold about 3 - 4 minutes worth of...
First you need to mark out a suitable area on the back of the guitar for the battery compartment measure it's dimensions in height and width. There's always a lip on battery boxes to cover the router cut on the guitar body so measure the inside dimension...
Simulated visual systemWe want to use artificial neural systems to teach biological instrumentation methods. The goal is a set of small circuits which behave like neural systems with respect to voltage, timing, and system behavior. This will enable...
Simulated visual systemWe want to use artificial neural systems to teach biological instrumentation methods. The goal is a set of small circuits which behave like neural systems with respect to voltage, timing, and system behavior. This will enable...