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Ricevitore GPS con arduino

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With SparkFun GPS shield and Nuelectronics LCD keypad shield this project become possible and fairly easy to build as you don't have to take care of hardware and focus on software. So this Arduino GPS receiver is able to do lots of things including: current location display, heading, speed (average and max), distance, bearing, ETA for a way point and date-time.
Project uses a TinyGPS library for easier GPS shield access. So device can be used as normal GPS tracking device the only con is that all information is displayed in text format.

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Calcolare il valore delle resistenze per i LED

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This LED calculator will calculate the current limiting resistor value and rounds the resistance to closest standard 5% resistor value. To use this software you need to enable Javascript in your browser.
LED Calculator – [Link]

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Suonare con arduino

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Playing one tone with Arduino is easy as there is a ready arduino tone library. But there Arduino has enough resources to do much more than one tone. So what about five? So Jeremy Blum decided to tweak Arduino program in order to play five tones simultaneously. For this he used timer and software interrupts to play five notes from pentatonic scale.
As tones are played mostly on hardware level – there is still enough resources to do other tasks that occupy microcontroller like LED matrix control. So, this one project pushes forward Arduino knowledge to new areas.

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Analizzatore di spettro

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Andrei Mehiläinen build this audio spectrum analyzer based on PIC32 proto board. It uses a 320x240px colour LCD and an unamplified audio source can be directly connected like PC's sound card or mp3 player.
Audio spectrum analyzer - [Link]

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Amicus: Arduino con PIC

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Amicus is a PIC microcontroller development system inspired by the popular Arduino board and it is using a PIC mcu instead of an ATMEL.  The Amicus hardware is open meaning schematic and design files are free to download. Also Amicus software and IDE (integrated development environment) is free of charge. Check details on the link below.
Amicus: PIC microcontroller development system - [Link]

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Stampante per muri...

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txtBOMBER via 2020.
The txtBOMBER is a one-hand-guerillia-tool – a machine not much bigger than a pressing iron – that generates political statements on the fly and immidiately prints them on any flat surface. If you feel you are part of our modern viewless generation, the txtBOMBER is the perfect tool for you! Just switch it on, it's powered by a strong battery. And move it along a wall. It's that easy to show your?its?someones? opinion of something?someone?! Hell! You should reconsider if you are keen enough to use it! The txtBOMBER has seven build-in pens to "print" the letters and a micro-controller-brain (Arduino), no need for a computer or any other brain. Oh and it speaks german at the moment ;-)

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Zenta Strike Again! Archer the Biped!

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If you've read this blog at all over the past few years, you'll know we're big fans of Kåre Halvorsen's (aka Zenta) work. Father of the very popular Phoenix Hexapod Kit, A-Pod the ant bot, and more recently the T-Hex Hexapod (available soon in kit form), it's very obvious that our Norwegian friend has an incredible grasp of Kinematics. Some might even call him a Kinematics Kung Fu Master. It's only natural that he would blow us away with his insane math-kinematics skills when he decided to take a shot at a biped walker. Well folks, he did not fail to impress. Utilizing the new Arc-32 board from Basic Micro, armed with only standard hobby servos and an inhumanly good grasp of math, Zenta has created a new biped named Archer.

Okay, so bipeds have been done before, what makes this special? Not only does it have some of the most impressive Inverse Kinematics I've seen on a non-professional level, it utilizes a pretty innovative COG-Shifter mechanism that can slide the battery and onboard controller from side to side to assist in walking. Want to see it in action? Look no further!

Also, if you can't get enough of Kåre and his awesome Norwegian accent, check out this 'behind the scenes' video where you'll be treated to his very impressive workshop and a demo of how he controls his various robots:

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