What Is This, A Microcontroller Board For Ants?

You youngins probably don’t remember this, but a few years ago there was an arms race on Kickstarter to create the smallest Arduino-compatible microcontroller board. Since then, a few people have realized they can make more money on Kickstarter through fraud or potato salad, and the race to create the smallest ‘duino board petered out.

It’s a shame [Meizhu] wasn’t part of the great miniature Arduinofication of Kickstarter, because this project would have won. It’s an Atmel ATtiny85, with USB port, resistors, diodes, reset button, LED, and pin headers, that is just 72 mils larger than the PDIP package of the ‘tiny85. Outside of getting a bare die of ‘tiny85s, there isn’t much of a chance of this board becoming any smaller.

[Meizhu] was inspired to create this board from [Tim]‘s Nanite 85, which up until a few days ago was the current champion of micro microcontroller boards. With a bit of work in KiCAD, the new board layout was created that is just a hair larger than the 0.4″ x 0.4″ footprint of the PDIP ATtiny85. There were a few challenges in getting a working board this small; you’d be surprised how large the plastic bits around pin headers are, but with some very crafty soldering, [Meizhu] was able to get it to work.

Filed under: ATtiny Hacks

Solid State Tesla Coil Plays Music

If you’ve ever wanted to build a Tesla coil but found them to be prohibitively expensive and/or complicated, look no further! [Richard] has built a solid-state Tesla coil that has a minimum of parts and is relatively easy to build as well.

This Tesla coil is built around an air-core transformer that steps a low DC voltage up to a very high AC voltage. The core can be hand-wound or purchased as a unit. The drive circuit is where this Tesla coil built is set apart from the others. A Tesla coil generally makes use of a spark gap, but [Richard] is using the Power Pulse Modulator PWM-OCXi v2 which does the switching with transistors instead. The Tesla coil will function with one drive circuit but [Richard] notes that it is more stable with two.

The build doesn’t stop with the solid-state circuitry, though. [Richard] used an Arduino with software normally used to drive a speaker to get his Tesla coil to play music. Be sure to check out the video after the break. If you’re looking for a Tesla coil that is more Halloween-appropriate, you can take a look at this Tesla coil that shocks pumpkins!

Filed under: misc hacks

Home Automation: Drapes

Hate having to manually open and close your drapes? Hate getting back from work/school and your room is dark and dreary? Do you want curtains that open and close themselves? Then you need Dr. Drape!Dr. Drape is an easy DIY project using an Arduino and servo to open and close your drapes at the tap o...
By: Coding_King

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Instructables 21 Oct 00:20

A digital nose detecting air pollution and dust particles

After Anywhere, Turbo-gusli and Solaris, Dmitry Morozov shared with us Digioxide, a new interactive work using Arduino Nano, hc-06 bluetooth module, gas and dust sensors, LG mobile printer :

This project aims to raise public awareness of the environmental pollution by artistic means.
Digioxide is a portable wireless device equipped with sensors of air pollution gases and dust particles that is connected to computer via bluetooth. This allows a person with digioxide to freely move around a city, seek out ecologically problematic places and turn their data into digital artworks.

The information about the concentration of dust and harmful gases, such as CO, CO2, HCHO, CH4 and C3H8 and spme others is algorithmically transformed into generative graphics, forming an abstract image. The device’s mobile printer allows instant printing of this air “snapshot” that can be left as an evidence on the place, or given as a present to a passerby.



Tiny electric ukulele

This tutorial teaches you how to make the world's smallest (and probably only) capacitance-piezo-buzzer ukulele.A ukulele is an instrument from Hawaii that looks like a small guitar with four nylon strings. Our strings will be made of wire and work by measuring the capacitance and then play the corr...
By: simsalapim

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Instructables 20 Oct 20:42

How to Make a Jar of Fireflies

Do you want to travel to the mysteriously glowing woods filled with fireflies buzzing thought the night? Make your very own Jar of Fireflies! This object could function as a nightlight or centerpiece for an indoor or outdoor table-setting. It turns on and off with the twist of the lid. It is for any...
By: NicoleS3

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Instructables 20 Oct 19:13

New Project: Arduino-Controlled Halloween Props

I worked out a system that lets you control all your animated Halloween props with a single microcontroller.

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Build your paper touch TV reomte control using arduino

Hello every one,i am vigneshraja. i did this project for fun. i thought if my tv remote become touch remote.so i made this project by combining the IR remote library and capacitive touch library of arduino.for touch buttons i use paper pieces that is sketch by pencil.watch my project video here to s...
By: vigneshraja

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Instructables 20 Oct 16:41

Your Baby is under control with Linino

We imagined a system for controlling the sleep of an infant, through the use of a number of sensors that now describe.A flex sensor place in the cradle, monitors the movements and an sound sensor measures the intensity of the cries. Everything is kept under control from a web page which will alert u...
By: Djando

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Instructables 20 Oct 12:34

Humanoid Robot voiced controlled with Arduino Mega, raspberry Pi and 1Sheeld

Humanoid Robot is a robot shaped in the form of a human. A humanoid robot is used in many different fields such as education for young children, on field marketing for companies, research and development tool , entertainment and for tasks that are unsafe to be done with real people so humanoid robot...
By: NeoMaeloP

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Instructables 19 Oct 19:46