Legacy Personal Blogs

Please Note:

This blog contains the legacy personal blog posts of our members, other than our Top Members whose content has been migrated into individual blogs in this area. Our new platform does not have personal blogs so this is how we have preserved the personal blog posts of our members from the Jive platform. No new posts will be permitted in this blog. Instead, if you wish to create blog content, please post it in the blog in the most appropriate topic area.

Entrepreneur

manikandan341

Can any one guide me to be entrepreneur...?
- 6 Jun 2019
"Attack of the Surfarians!" Case/Artwork Dimensions

airbornesurfer

Greetings, Programs! If you'd like to build your own Attack of the Surfarians! handheld or think you've got some rad period artwork in you, here are the dimensions of the handheld that I built. Let me know if you need anything else to get starte...
- 6 Jun 2019
Attack of the Surfarians! Arduino Sketch

airbornesurfer

This is the current state of the "Attack of the Surfarians!" game code and will be updated as necessary.Please check out Julius Roberts's website for the original public domain code that I'm working from /* Attack of the Surfarians! v0.9 CC-...
- 5 Jun 2019
YAPS Part Seven - Prototyping of Arduino Interface

Andrew J

EDITS: 6/11/19 - Fixed broken links; Added link to Part Eight. I'm going with an Arduino interface to display voltage, current, power and temperatures. In the first version this will be display only - controls for setting voltage and c...
- 5 Jun 2019
Getting Better with DC Motors

dubbie

In the recent Month of Robots competition I made something I called SuperRobot, but disapprovingly it wasn't so super as the DC motors and drivers I selected just didn't seem up to the task of moving the quite heavy chassis. I decided that I ...
- 5 Jun 2019
Project Hawthorne Wiring Diagram

airbornesurfer

Here's the Fritzing diagram for Project Hawthorne/"Attack of the Surfarians". Hopefully you can read it okay, especially around the matrix. Attachments:community.element14.com/.../hawthorne_2D00_fritzing.zip
- 5 Jun 2019
6.25 Watt Hamradio Dummy Load

bernhardmayer

In the last couple of weeks I had a little side project: a hamradio dummy load especially for the 2 m and 70 cm hamradio bands but it should also work on higher frequencies. A dummy load (https://en.wikipedia.org/wiki/Dummy_load ) is a handy device w...
- 31 May 2019
YAPS Part Five - Design - PCB

Andrew J

The KiCad files are available on Github.Custom footprints and custom symbols can be downloaded from Github. You’ll need to add a link to these in KiCad’s preferences so that the projects don’t error when opening. I’m assuming that if you ...
- 29 May 2019
YAPS Part Four - Design - Calculations (iii)

Andrew J

EDITS: 6/11/19 - Fixed broken links; Updated calculations for LM7805 Thermal CalculationsThe biggie! In theory, the design should run without generating high temperatures but I want to be sure. I have calculated power dissipation and...
- 29 May 2019
YAPS Part Four - Design - Calculations (ii)

Andrew J

EDITS: 6/11/19 - Fixed broken links LTC1624 CalculationsI have spent a fair bit of time trying to get a good understanding of this part of the design (and to be honest, I’m still working on that!). I have used the data sheet to make the ne...
- 29 May 2019
YAPS Part Four - Design - Calculations (i)

Andrew J

EDITS: 11/6/19 - Fixed broken links As part of the analysis I was doing into the design and selection of parts, I ran up some calculations. I also validated the thermal characteristics of the key parts to see how likely they were to need h...
- 29 May 2019
YAPS Part Three - Design - LTSpice

Andrew J

EDITS: 11/6/19 - fixed broken links LTSpice files are available on Github. You will need to put the directory ‘Andrews Parts’ in the sym directory for LTSpice library but you can delete it when finished. It’s just used to hold the .a...
- 29 May 2019
YAPS Part two - Design - Schematic

Andrew J

EDITS: 11/6/19 - Fixed broken links; Changed schematic for low voltage supply following change of LM7805 21/7/19 - Attached a PDF containing the whole schematic The first st...
- 29 May 2019
YAPS Part One - Introduction

Andrew J

EDITS: 6/6/19 Updated navigation links. 11/6/19 Added link for part 8; fixed broken links. 14/6/19 Updated navigation ...
- 29 May 2019
YAPS Part Six - Design - BOM

Andrew J

EDIT: 6/6/18 - fixed broken links; updated link to part 7 The BOM is in the attached spreadsheet (and Github) but I haven’t copied it here: I suspect that it’s only of interest to those people who want to download it. There are two copies:...
- 29 May 2019
Suivit de mon projet domotisation

Qtroniks

Bon je vais ici continuer le log de ma passion pour domotiser ma maison.J'ai déjà fait beaucoup mais je ne veux pas entrer dans les anciens détailles. Mon truc a moi pour bien suivre mes créations et ma progression est d'avoir un Wiki sur mon se...
- 26 May 2019
The Causes of Ground Bounce and How To Avoid It

caroline_teledynelecroy

We've been discussing the topic of ground bounce on digital I/O lines as well as an effective way to diagnose and analyze it. We've also run through a detailed example of how to measure it using a quiet-low I/O driver as a sense line. Now, let's take...
- 24 May 2019
Introducing students to IoT

davidlockett

The Internet of Things refers to a connected group of physical devices that can exchange data and thus interact with the physical world in an enhanced way. According to analysts, there will be 20.4 billion Internet of Things (IoT) devices by 2020. Th...
- 24 May 2019
How to get EEG data via Bluetooth from Mind Flex toy

kk99

Mind Flex is toy which allow users to control elements thing in game based on brain-computer interface. It contains NeuroSky TGAM1 chipset which is a single channel EEG with support for UART/Serial communication. By default chipset returns informatio...
- 23 May 2019
Li-Fi with Arduino and Python

RParkerE

Light FidelityBackground:Light Fidelity (Li-Fi) is a wireless communication method which uses light to transmit data between devices. "In technical terms, Li-Fi is a visible light communications system that is capable of transmitting data at high spe...
- 18 May 2019
Keysight IoT Innovation Challenge - I Need Your Vote

jlamb080

Hello everyone, a friend and I have made a submission for the Keysight IoT Innovation Challenge. Please vote for our idea so we can make it to the next round! (link below) https://www.iotchallengekeysight.com/2019/entries/smart-water/130-0512-21...
- 14 May 2019
Priming the Pump

kc4zvw

A place to post future notes about motor controllers. regards, David (KC4ZVW)
- 12 May 2019
My Spanners

dubbie

Recently there have been some blogs about the different tools that various Element14 members own and use so I decided to display my set of spanners and sockets that I have gathered over my lifetime. The ones I like the most are the ones I purchased m...
- 9 May 2019
Op Amps: NIC (Negative Impedance Converter) and the Chua Oscillator

jc2048

Introduction NIC stands for Negative Impedance Converter. It's one particular circuit configuration that can exhibit the phenomena of negative resistance. I'm going to look at that first and then, once we've done that, I'm going to use a pair ...
- 4 May 2019
A Walk-Through of Ground-Bounce Measurements

caroline_teledynelecroy

In earlier posts in this series, we've explained what ground bounce is and how it happens. We have also taken a deeper dive into the use of I/O drivers to implement sense lines that let us better quantify and analyze what kind of ground-bounce hi...
- 2 May 2019