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How to Make an Inexpensive Arduino Photometer   « Adafruit Industries – Makers, hackers, artists, designers and engineers!

Zachary Marlow loves testing water and has a special interest in his hometown Lake of the Ozarks. Although he already owns a spectrometer, a photometer was out of his price range. So, like any good…
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Raspberry Pi
A complete ARM GNU/Linux computer for $25.
(also covering Arduino and BeagleBone)
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Dear reader,

Dear reader, | Raspberry Pi | Scoop.it

The Raspberry Pi project website is http://www.raspberrypi.org/

This is one of my news digests. If you like my editorial choices, there are more to be found by clicking on the "dear reader" link, and on my name above.
Enjoy !

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Dawn Hewitson's curator insight, February 10, 2014 9:43 AM

Looking forward to having a go at some of the projects on here

Donald Thomas's curator insight, August 30, 2014 1:07 PM

this is 

Wuzea Recherche's comment, March 15, 2015 10:45 AM
Propose de rechercher une ressource en tapant un mot clé dans le champ de recherche. Wuzea : http://www.wuzea.com
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Dual-radio development kit flexibilizes networking of intelligent devices

Dual-radio development kit flexibilizes networking of intelligent devices | Raspberry Pi | Scoop.it
The dual-radio development kit STEVAL-FKI001V1 from STMicroelectronics enables simultaneous communication via Bluetooth Low Energy (BLE) and Sub-Gigahertz radio technology. The kit thus offers developers and system integrators a high degree of flexibility in networking IoT devices.
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Pauli Rautakorpi’s silicon CPU and chip Die Shots on Wikimedia Commons   Makers, hackers, artists, designers and engineers!

Taking pictures of silicon chips is an art as the circuitry most often is hidden beneath case material. Once liberated, the beauty of the circuitry is outstanding.Here we’ve found a beautifu…...
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Overview | 10" Raspberry Pi Desktop | Adafruit Learning System

Overview Raspberry Pi Tablet This project showcases the scalibility of a 3D printed project for the Raspberry Pi. You've see this sorta thing before, an all-in-one portable Raspberry Pi fitted in a nice little 3D printed package with a PiTFT display. So, surely it's trivial to scale that up with the best screen in the shop! Make it bigger! This project takes the DIY approach with no compromises in cost. The cost of this build is easily goes over low budget DIY projects, but it's ment to be premium build. It will be used for monitoring and wirelessly controlling a farm of printers.
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WIFI 8x MAINS Relays board for Home Automation from NextEVO on

WIFI 8x MAINS Relays board for Home Automation from NextEVO on | Raspberry Pi | Scoop.it
WIFI 8x MAINS Relays board for Home Automation from NextEVO on Tindie...
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10 Best Arduino Books For Programmers & Engineers

10 Best Arduino Books For Programmers & Engineers | Raspberry Pi | Scoop.it
The best thing about Arduino is that it’s accessible to almost anyone.You do need some technical interest to get involved, but building on top of the...
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FDK Unveils Tiny SMD Solid-State Batteries

FDK Unveils Tiny SMD Solid-State Batteries | Raspberry Pi | Scoop.it
Coin-cell batteries are often used in wearables or system with a real-time clock (RTC).They do the job just fine, but over many years they may start to...
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Automate Your Home From the Clearance Rack

Automate Your Home From the Clearance Rack | Raspberry Pi | Scoop.it
The month or so after the holidays have always been a great time to pick up some interesting gadgets on steep clearance, but with decorations and lights becoming increasingly complex over the last few...
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Analyzing Live Data Streams In Cloud Using Raspberry Pi, DHT11, And ThingSpeak

Analyzing Live Data Streams In Cloud Using Raspberry Pi, DHT11, And ThingSpeak | Raspberry Pi | Scoop.it
In this IoT article, we will use a Raspberry Pi and ThingSpeak to analyze the temperature and humidity.
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How deaf researchers are reinventing science communication   Makers, hackers, artists, designers and engineers!

via Verge Science Science is a language unto itself, and scientists rely on precise, standard terminology for common ground in their work.But for deaf researchers and students, American Sign Langu…...
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New Products 1/16/19 Featuring #Adafruit #LoRa Radio Bonnet with #OLED –

Browse through all that’s new here!NEW PRODUCTS THIS WEEKMini SWD 0.05″ Pitch Connector – 10 Pin SMT Box Header: We’ve carrying a new 1.27mm pitch 2×5 Mini SWD 0.05″ Pitch Connector. It’s a tinier, bite-sized version of the Box Header used on our SWD Cable Breakout Board.
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Arduino Controlled Pick & Place Robotic Arm Kits for Teens for Sale

Arduino Controlled Pick & Place Robotic Arm Kits for Teens for Sale | Raspberry Pi | Scoop.it
STEMpedia Robotic Arm Kit is a perfect kit for learning manipulators and robotics. You can build sketching robot and pick & place robot. The robotic arm can be programmed in Scratch, Arduino and Matlab.
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Sly Guy Nabs Pi Spy

Sly Guy Nabs Pi Spy | Raspberry Pi | Scoop.it
When one of [Christian Haschek's] co-workers found this Raspberry Pi tucked into their network closet, he figured it was another employee's experiment - you know how that goes. But, of course, they di...
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loop - Simultanous button reading?

loop - Simultanous button reading? | Raspberry Pi | Scoop.it

3 I'm currently working on a project that requires that I simultanously check the state of two buttons. Each button HIGH state is assigned to one if loop. Here's the basic concept: void loop() { S1_State = digitalRead(S1_Pin); S2_State = digitalRead(S2_Pin); ButtonPRESSED = false; P1_Time = random(2000, 5000); delay(P1_Time); digitalWrite(P1_Pin, HIGH); while(ButtonPRESSED == false) { if (S1_State == HIGH) { Serial.print("Player 1 wins"); Serial.print(""); digitalWrite(P1_Pin, LOW); ButtonPRESSED = true; delay(5000); } if (S2_State == HIGH) { Serial.print("Player 2 wins"); Serial.print(""); digitalWrite(P1_Pin, LOW); ButtonPRESSED = true; delay(5000); } The problem is that checking for the button states this way requires that the S1_State loop _has to be read before the S2_State loop_, thus giving player 1 an advantage.

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Giant Board packs Linux into the size of an Adafruit Feather  Makers, hackers, artists, designers and engineers!

Via OSH Park Blog – Designer @groguard has provided details of  the Giant Board which runs Linux in the form factor of the Adafruit Feather: The Giant Board is a super tiny single-board compu…...
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Reach Robotics set to launch standalone education app

Reach Robotics set to launch standalone education app | Raspberry Pi | Scoop.it
Reach Robotics, the creators of the world’s first AR gaming robot, have announced the upcoming launch of a dedicated education app.
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NEW GUIDE: DIY Adaptive Game Controllers  – Makers, hackers, artists, designers and engineers!

It’s never been easier to create adaptive controls to play video games.For gamers with particular needs not met by standard gaming controllers, the Microsoft Xbox Adaptive Controller (XAC) i…...
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Misty II, Your Next Development Platform

Misty II, Your Next Development Platform | Raspberry Pi | Scoop.it
Ian Bernstein, founder and head of product at Misty Robotics is calling for a departure from thinking of robots as tools and machines to thinking of them more...
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Arduino-Due-Based SAE J1939 Programming Kit - Standard Edition

Arduino-Due-Based SAE J1939 Programming Kit - Standard Edition | Raspberry Pi | Scoop.it
Arduino-Due-Based Programming Kit With Two CAN Bus Ports for CAN Bus And SAE J1939 Prototyping Or Gateway Design...
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HelloWorld on #Arduino

HelloWorld on #Arduino | Raspberry Pi | Scoop.it
This is a really beginers guide to the most simple thing that you can possibly do with an Arduino - Say Hello World. So, first thing is, go to https://www.arduino.cc/en/Main/Software and download the Windows IDE.
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37 in 1 Sensor Modules Kit for Arduino & Raspberry Pi & MCU –

37 in 1 Sensor Modules Kit for Arduino & Raspberry Pi & MCU – | Raspberry Pi | Scoop.it
With this 37 in 1 ultimate package ,you can do almost all the experiment you can think of ,never need to worry about again you don't have proper materials . this do save you a lot of time ,so you just need to focus on your project ,be more creative,and make some amazing product !
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Preview – Metro M4 WiFi Express  Makers, hackers, artists, designers and engineers!

Preview, Metro M4 WiFi Express, SAMD51 with all the goodies you expect for CircuitPython + ESP32 co-processor (caboose?) on the SPI bus to do SSL, WiFI and maybe even BTLE!Best o’ both world…...
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Raspberry Pi Node-RED Programming Tutorial

Raspberry Pi Node-RED Programming Tutorial | Raspberry Pi | Scoop.it
Learn how to program the Raspberry Pi using Node-RED in this full tutorial. Use Node-RED & Raspbery Pi to create a dashboard for Home Automation.
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Improve Security of Your Hard Drive by Arduino & Fingerprint

We want to show you how to improve the security of your digital data stored in a hard drive by a fingerprint sensor and Arduino.
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