DIY: Temperature Monitoring and Regulation for HomeBrew

Beer brewing is a fun hobby, whether you wanna just brew something easy from a kit, or take the time to fine-tune your preferred style. With every batch, there are always two things that weigh heavy on a brewer’s mind: risk of contamination or, depending on where you live, extreme temperatures. I live in an area where the temperature often dips below 60° F during the winter, which is too cold for the yeast ...

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A Raspberry Pi controlled mini CNC Laser engraver [last update Jan 18,2014]

About the capability of the engraver Due to the size limit of DVD drives, the machine can only engrave within an area of 36 mm by 36 mm.. So it can do little pieces of wood, plastic board or part of  iPhone cases, but not any larger. The laser used here is 200 mW 650 mm red laser diode. It cuts letter paper fine. But It is not powerful enough to actually cut through anything thicker and tougher. In fact, th ...

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DIY Social Integration Kit- Raspberry Pi

A number of sensor applications in recent years collect data which can be directly associated with human interactions. one can use the sensor data in order to model the underlying relationships and interactions. It also leads to a number of challenges, since such data may often be private, and it is important to be able to perform the mining process without violating the privacy of the users. Working Princi ...

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Raspberry Pi Analog to Digital Conversion Experiments and Howto

The Raspberry Pi is a great little educational computer, but all models of the Raspberry Pi miss a critical ingredient for electronics experiments – an Analog to Digital converter. I am constantly working on upgrading my lab, and one of my needs is to measure many channels of analog signals, with reasonably high precision. I decided to take the time to document a custom Raspberry Pi based data acquisition s ...

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DIY Alarm Monitoring System w/ Raspberry Pi + Foscam + Sensors

The Raspberry Pi is an amazing device. Although not the most powerful mini computer out there, it bolsters a tremendous support community, tons of hardware add-ons and coding libraries to your heart’s desire. The Raspberry Pi also makes an affordable media player but so much more can be done with it. In this post, I’ll try to show you how I turned your typical Raspberry Pi, combined with some cheap componen ...

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Raspberry Pi – Driving a Relay using GPIO

There’s something exciting about crossing the boundary between the abstract world of software and the physical ‘real world’, and a relay driven from a GPIO pin seemed like a good example of this. Although a simple project, I still learned some new things about the Raspberry Pi while doing it. There are only four components required, and the cost for these is around 70p, so it would be a good candidate for a ...

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DIY SPY BOT PI Kit- Raspberry PI

Spy robots are remotely controlled robots, equipped with a camera, transmitting video data to the remote area. A movable spy robot with a remote controller by using raspberry pi. The spy robot is made up of a USB camera, Wi-Fi adaptor, batteries and movable wheels. To remotely control wireless system and to control Spy robot Wi-Fi technology is used. Remote Operated Spy Robot is a small robot designed for s ...

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Raspberry Pi Portable Games Console

Building this Portable Games Console is possibly the most fun I've had using a Raspberry Pi. And it's not just the build that's fun; I've now got a fully functioning games console, so I can play all my favourite old arcade games, on-the-go! There's a quiet a few other projects out there where people have done similar things and I've used them for help along the way. Projects like the Adafruit Cupcade and Be ...

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ICStation Electronic Dice DIY Kit 7pcs 5mm Red LEDs

Description Electronic Dice Kit Instructions Electronic dice kit is based on the NE555 oscillator circuit and fun circuit CD4017 counter display kit. Can simulate the dice, make fun of the game. One. Kit parameters: Supply voltage: 4.5-5V Dimensions: 74 * 35mm Two. Function play: When a power-up, 7 LED will randomly display a number of points, players press the switch S1,7 all lit LED only after about 7 sec ...

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Laser Harp with Tah and Raspberry-Pi

This valentines we made this wooden Harp and used Laser and Light Dependent Resistors (LDR's) to play music. I will not be showing you how to make the wooden structure, but you can find the images with exact dimensions if you want to use them. I have used the code of Piano Stairs which I found in this instructable Here is the list of items that you will require 1. Wooden structure of the harp 2. 12 - 3mm re ...

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