Blog

MagicHat - 4 - Heart beat sensor

amgalbu

One of the most challenging part of this project is to measure the heart beat (and then blood pressure)Hear beat measuring is based on the principle of photoplethysmography (PPG) which is a non-invasive method of measuring the variation in blood volu...
- 30 Mar 2015
Enchanted Objects Design Challenge - The Woodcutter and the Blacksmith

Workshopshed

The Woodcutter Matilda needed some wood for the house extension so she set off through the forest to visit the woodcutter. She found him in a clearing formed by trees that had fallen in the same storm that had damaged the enchanted cottage. "Sev...
- 30 Mar 2015
1958 Turntable from the Black Forest - 7: Control Theory - End of Chapter 1

Jan Cumps

The first chapter is finished. I started with a defect turntable. It looked good at the start but didn't turn.It hasn't changed on the outside, but the inside is revamped with latest technology. And it spins! In each of the previous ...
- 29 Mar 2015
1958 Turntable from the Black Forest - 6: Turntable Speed Sensor design

Jan Cumps

The basis for my turntable enchantment is almost done. I'm very close to having a working turntable.Let's have a look at the speed sensor circuit today. One of the very last things to complete for this basis part.The Speed Sensor The...
- 28 Mar 2015
MagicHat - 3 - Accelerometer

amgalbu

In order to detect when the MagicHat is picked up from the docking station, an accelerometer will be installed.The accelerometer I will install is a quite old model, now out of production: the ADXL210. The reason for this choice is that it was the on...
- 26 Mar 2015
Multimeter inbox 1: The idea

kidiccurus

I would like to start by thanking everyone involved in making this design challenge happen. Things like this are great for the electronics community and are one of the reasons I got insterested in electronics. Thank you. Problem: I don't check m...
- 26 Mar 2015
1958 Turntable from the Black Forest - 5: Turntable speed sample testbed with Arduino UNO

Jan Cumps

I'm creating a test setup for the speed sample firmware. In this post I'm reviewing the speed sensing approach and how the Arduino knows how fast the turntable is spinning. Where should I measure the speed? There are a number of...
- 25 Mar 2015
MagicHat - 2 - Temperature sensor

amgalbu

For measuring body temperature, I need a sensor with a 0.1 °C accuracy (i.e. the accuracy you typically have in a thermometer).Unfortunately, the sensor I initially thought of (the Melexis 96104 Infrared thermometer) does not match this requirement, ...
- 25 Mar 2015
Enchanted Objects Design Challenge - Matilda is not happy

Workshopshed

"That” said Matilda, "is not good". Hans looked nervously over the top of Network Security for dummies. He knew that tone of voice and the daughter of a miner is not one to be trifled with. Matilda held up her mechanism and Hans s...
- 25 Mar 2015
The Genie Gives A Tour Of His House

RParkerE

The genie being proud in nature, wished to show off his sweet new crib. He would like to invite all of you to an informal open house, where you can see his sweet new setup, and all his cool furniture. Arduino Yun was the architect of the genies sweet...
- 25 Mar 2015
1958 Turntable from the Black Forest - 4: Motor control with Infineon Motor Shield and Arduino UNO

Jan Cumps

Time for the first electronics post. We're going to drive my turntable motor with the Arduino Uno and the Infineon motor shield. The Infineon DC Motor Control Shield is connected to the Arduino UNO. The Arduino controls the motor power by ...
- 24 Mar 2015
Useful videos and references

Workshopshed

I just found this video about the Arduino Yun on a post from doctorcdf on the Internet of Holiday lights www.youtube.com/watch and another about the RGB lighting shield www.youtube.com/watch There's also a review of the code e...
- 24 Mar 2015
About Security

crjeder

Basic Security Principles From the comments to my first post I've learned that there are different perception of security. Therefore I decided to explain when I call a system to be secure. In general security tries to reach following goals:&nbsp...
- 23 Mar 2015
Review 1: Atmel SMART SAMA5D4 Xplained Ultra - Unboxing and First Steps

Jan Cumps

I have done the first trials with the SAMA5D4 Xplained Ultra. My progress is limited:I can connect to the board via a terminal program and execute some linux commands. I haven't been able to get the SAM-BA utility working and failed to get a dev...
- 23 Mar 2015
Superclock

Workshopshed

Looks like we're not the only people making enchanted objects http://www.superclock.info/ "We are building a clock for your home, connected to the internet.The sphere shows you when the next bus is coming."
- 23 Mar 2015
Enchanted Mirror - Proof of concept and intro

Robert Peter Oakes

Hi everyone So my proposal for an enchanted objects is a Mirror, but just not an ordinary one... The intention is to produce a marriage of an Infinity Mirror, a 23" ish LCD panel and a series of sensors and internet connected IOT feeds...
- 23 Mar 2015
1958 Turntable from the Black Forest - 3: Preparation for Motor Drive

Jan Cumps

I've completely cleaned and lubed the drive unit of the Perpetuum-Ebner. All old grease and oil has been removed with isopropyl alcohol (we call it isopropanol down here).All parts that needed some grease or oil have been serviced. The table is...
- 22 Mar 2015
Enchanted Objects - Enchanted Clock (Post #1)

dwinhold

This week we received a welcoming parcel from Element14!! The parcel contained, Atmel SAMA5D4 Xplained Ultra, Arduino RGB LED Lighting Shield, Arduino DC Motor Control Shield and the Arduino Workshop Livello Kit. We are still waiting for a coup...
- 22 Mar 2015
Enchanted Objects Design Challenge - Remodelling the Enchanted Cottage

Workshopshed

The way things wereMatilda'a father had worked his life in the coal mine so she was no stranger to a bit of hard labour. As a child she'd played at being a miner, smashing rocks in the back yard of their terraced house with a small hammer. Today...
- 21 Mar 2015
[ExM] #2 First attempt on the Atmel SAMA5D4, installing JAVA

nikil511

Following pettitda instructions Atmel SAMA5D4 Xplained Ultra Road Test -- Day 3I installed the USB driver, and hooked my SAM to the USB of a windows machine, connected with putty....and... hello there! Note that I did not have to change flow co...
- 21 Mar 2015
Enchanted Typewriter - Inspiration

Former Member

Planned obsolescence is one of the biggest problems in today's technological products. Things get rotten, dusty, forgotten and lost of their initial use, becoming part of a pile of not good enough's even before they are meant to be like that. However...
- 21 Mar 2015
1958 Turntable from the Black Forest - 2: A Time to Kill and a Time to Heal

Jan Cumps

57 years old grease Like all mechanical devices, this turntable needs servicing. And it hasn't had any since it left the Black Forest.I've taken the whole drive unit apart. Every part is going to get cleaned and every bit if old grease, gu...
- 21 Mar 2015
[ExM] #01 Espresso ex Machina introduction

nikil511

Project backgroundI am a (software) engineer and an espresso coffee enthusiast. As a result, I could not settle for an ordinary instant capsule coffee with hightech chemistry but without real smell and taste of proper coffee (i.e speciality coffee). ...
- 21 Mar 2015
Enchanted Windows - Introduction

coolbox

First of all I want to thanks element14 and sponsors for selecting me as competitor in this awesome competition.Here I want to share some ideas about my project enchanted windows. 1) It can be opened or closed remotely from anywhere....
- 21 Mar 2015
Wish One Was Granted

RParkerE

As I sit at my desk, alone in the dark, I remember wishing that there was someway I could make my dream of a magical lamp, that fulfilled all my wildest dreams a reality, rather than just another picture on a piece of paper somewhere in the landfill....
- 20 Mar 2015