Capacitive touchscreens and touch sensors ubiquitous on the computers around us now, and they’re starting to be common on DIY projects as well.
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Tag Archives: reblog
I2C Design Mathematics: Capacitance and Resistance
This article covers what variables affect the capacitance of your bus. It also looks at the mathematical calculations used to size the pull-up resistors and determine the maximum length of circuit traces. Let’s start by discussing what I2C actually is.
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My Smart Mirror
Time in the morning can be limited. You have to get ready for work, school,… Looking up the weather takes some of that limited time away. The Smart Mirror eliminates the time you need to open your phone or computer and lookup the weather. In this project we will make such a mirror.
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Basics of Digital Down-Conversion in DSP
This article discusses digital down-conversion which is a digital-signal-processing technique widely used in digital radio receivers. Digital down-conversion is a digital-signal-processing technique that is widely used in digital radio receivers.
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Reverse-Emulating NES: Nintendception!
This is a stellar hack, folks. [Tom7] pulled off both full-motion video and running a Super Nintendo game on a regular old Nintendo with one very cute trick.
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What is an ETA Nixie Tube Clock and How Do You Build One?
In our house, the concept of time is somewhat fuzzy. This is especially true in the morning as we get ready for school and work. The amount of days dropping off the kids late to school is a little embarrassing.
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The Circuit Designer’s Guide to Photovoltaic Cells for Solar-Powered Devices
This article presents the equivalent circuit for a solar cell and discusses some implementation details. The astonishing abundance of life found on earth requires a corresponding abundance of energy.
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Homemade Electric Longboard
In the past, I’ve shared a few longboards I’ve built on Instructables, but this time it’s a little bit different, because it’s ELECTRIC! In this I’ble, I will outline the tools, parts and steps I took to create this fast, long range electric longboard.
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Pipelined Direct Form FIR Versus the Transposed Structure
This article will review two different structures to implement a high-throughput FIR (finite impulse response) filter: the pipelined direct form FIR and the transposed structure. We’ll see that generally the transposed structure is the preferred implementation for a FIR filter.
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Space Invaders Clock (on a Budget!)
Recently I saw a cool build by GeckoDiode and I immediately wanted to build it myself. The Instructable is Space Invaders Desktop Clock and I recommend you have a look at it after reading this.
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