Color Sensor Demystified

When [millerman4487] bought a TCS230-based color sensor, he was expecting a bit more documentation. Since he didn’t get it, he did a little research and some experimentation and wrote it up to help the rest of us.

The TCS3200 uses an 8×8 array of photodiodes. The 64 diodes come in four groups of 16. One group has a blue filter, one has green and the other has a red filter. The final set of diodes has no filter at all. You can select which group of diodes is active at any given time.

Sixteen photodiodes have blue filters, 16 photodiodes have green filters, 16 photodiodes have red filters, and 16 photodiodes are clear with no filters. The four types (colors) of photodiodes are interdigitated to minimize the effect of non-uniformity of incident irradiance. All photodiodes of the same color are connected in parallel. Pins S2 and S3 are used to select which group of photodiodes (red, green, blue, clear) are active.

The output of the array is a frequency that corresponds to the light intensity measured by one bank of photodiodes. You’ll need to make several pulse input measurements to compute the color and [millernam4487] provides code for it. You may, however, need to calibrate the device before you get good results.

We’ve looked at color sensors before, of course. They can even unlock doors.

Hack a Day 23 Jan 19:30

Come meet the Arduino Education team at Bett 2019!

The Arduino Education team is returning to the Bett Show this week, where you can expect to find our latest products and programs for empowering students and teachers alike.

This year, we’re further strengthening our STEAM-focused offerings across the spectrum with the first-ever kit for middle schoolers, the Arduino Science Kit Physics Lab, developed in partnership with Google; the introductory module of the official Arduino Certification Program; a new addition to the Arduino Creative Technologies in the Classroom lineup, CTC GO!; and a thematic annual initiative which will kick off in 2019 with ‘Arduino and Space’ for the entire global education community.

Those visiting our stand (C375) will also have a chance to learn more about the Arduino CTC 101 program and Arduino Engineering Kit, both of are being successfully deployed in classrooms throughout the world.

Arduino and Google: A New Collaboration for Scientific Exploration

The Arduino Education Science Kit Physics Lab, our first kit targeted at middle schoolers, provides children ages 11 to 14 with a  hands-on experience, enabling them to explore forces, motion, and conductivity with their classmates. Students can form their own hypothesis like a real scientist, then check their assumptions, and log data thanks to Google’s Science Journal app — a digital notebook for conducting and documenting science experiments using the unique capabilities of their own devices.

The kit, based on the MKR WiFi 1010, features a range of sensors to measure light, temperature, motion, and magnetic fields; plus it comes with a set of props and full access to online course content for teachers and students to conduct nine exciting science projects inspired by popular fairground rides like the Gravitron and Pirate Ship.

Take Your Arduino Skills to the Next Level and Become Certifie

The Arduino Certification: Fundamentals Exam is a structured way to enhance and validate  your Arduino skills, and receive official recognition as you progress. Anyone interested in engaging with Arduino through a process that involves study, practice, and project building is encouraged to pursue this official certificate.

Developed in consultation with leading technology curriculum, interaction design, and electronic engineering professionals, the Arduino Certification: Fundamentals certification assesses skills based on exercises consisting of practical tasks from the Arduino Starter Kit.

The official assessment covers three main key areas: theory and introduction to Arduino, electronics, and coding.

Ready, Set, GO!

CTC GO! is the newest member of Arduino’s Creative Technologies in the Classroom lineup. The program consists of a series of modules which can be combined to teach various STEAM subjects to fit with different educational paths.

The core module — which is the foundation of CTC GO! — is now available, while an assortment of expansion modules will be launched sequentially from 2019 to 2021. These include a motion module, a wireless module, and math module, all of which will contain new materials, content, and educators training / support.

CTC GO! has been designed around the recently announced Arduino Uno WiFi, our most powerful board for education. The board maintains the simplicity of the standard Uno with the incorporation of WiFi so students can learn about wireless technology and begin creating their own IoT projects.

Through the project-based learning (PBL) methodology, CTC GO! introduces students to basic concepts via a series of playful, well-documented projects and easy-to-assemble experiments.

CTC GO! also provides premium training and support for educators through online videos, webinars, and expert-answered emails.

Space: The Next Frontier of Education

The human exploration of space has inspired endless projects within the STEAM community, many of which leveraging the Arduino platform. David Cuartielles, Arduino Co-Founder and Education CTO, took the Bett stage (Post 16 Theatre) on Wednesday morning to discuss innovative ways to engage students inside (and outside) the classroom.  

This session showcased the work of master students from the Space Department at Sweden’s Lulea University and their machines that extract water from the cold air of Mars; educational robots from the German Space Agency (DLR); and CanSats made by K12 students in Aguascalientes, Mexico, among others. During the talk, David and Electronic Cats CanSat’s Andres Sabas shared how they were able to get college students to program and launch 40 small satellites using open source hardware and aerostatic balloons.

Arduino Blog 23 Jan 17:16

Fading LED Arduino | LED Fader | Arduino Tutorial

Hello , Today in this video tutorial i am going to show you Step By StepHow to fade an led using arduinoThis Electronic Project is Very Simple Easy and DIY (Do It Yourself)❖ Please Subscribe / Like Facebook Page ❖ ►►
By: afzalrehmani

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Instructables 23 Jan 16:11

Python3 and Arduino Communication

Project DescriptionIn this project we will be sending commands from Python3 to an Arduino board, which will make things easier to understand when communicating between Python3 and Arduino. We will make a "Hello world" of the Arduino platform which means turning ON/OFF built-in LED on the Arduino Uno...
By: mansoorilantern19

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Instructables 23 Jan 15:41

Setting Up an Ultrasonic Sensor for Arduino

This instructable will guide you through setting up and calibrating an ultrasonic sensor for use with an Arduino system in order to accurately measure distance. Connect the ultrasonic sensor to the Arduino system by attaching wires from the Arduino pins to holes on the breadboard which attach to t...
By: sfrench2019

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Instructables 22 Jan 23:53

Arduino UNO: Complete Ultrasonic Sensor Guide (HC-SR04)

This guide will teach you how to connect your HC-SR04 ultrasonic sensor to your Arduino UNO and how to calibrate it to measure distance. Connect your ultrasonic sensor to the Arduino UNO as shown in the diagram. The HC-SR04 has four pins which should be connected as follows:Ultrasonic VCC → Arduin...
By: ColeAndGarrison

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Instructables 22 Jan 23:05

Interfacing Any Arduino With a Cellphone

When using an Arduino, it may result quite annoying to not be able to use it just because you do not have a computer available. Maybe the Windows or Mac OS isn't compatible, you don't have any computer at all or you just want more freedom for interfacing your board. The solution: a simple OTG (On Th...
By: Pedro Castelani

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Instructables 22 Jan 15:19

Automatic Medicine Reminder Using Arduino

When it comes to our loved ones, we always want to stay them healthy and fit. But what will happen if they get ill and forget to take medicine on time. We would be worried, right?  At hospitals, there are many patients and it is difficult to remind every patient to take medicine on time. The traditional ways require human efforts to remind to take medicines on time. The digital era doesn’t follow that and we can use machines to do that.

Circuit Digest 22 Jan 11:03

An Infrared Tracking Dog

Someday I found an interesting video at: this is really a good video but, cheating… At the first glance I feel It really strange, and then feet cheated, do not know what is the...
By: makerfabs

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Instructables 22 Jan 08:44

Clapper LED Candle

A few years ago I saw "My New Flame" by MORITZ WALDEMEYER, INGO MAURER UND TEAM 2012 at the museum gift shop, and feel in love with the idea. I hoped to recreate something enjoyable, functional and interesting to watch, but with a slight twist. I certainly couldn't make anything comparable to the b...
By: sbkirby

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Instructables 21 Jan 21:59