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.

Model Railway Signal Controller

djfraz

I thought I would share this project that I have been working on for about six years, on and off. It is a controller for four aspect model railway signalling.Functionality of four aspect signals When most people drive these signals on a layout, ...
- 2 Nov 2017
What is an oscilloscope

shishir6

What is an oscilloscope?The oscilloscope is a graphical display device that shows variable electrical signals over time.The vertical axis, from now on referred to as Y, represents the voltage; while the horizontal axis, called X, represents time.The ...
- 1 Nov 2017
Third Year Systems Project 7 : Photos !!

djfraz

After this mornings Team Meeting we agreed that i could put up some pictures of the goings on within the group.
- 31 Oct 2017
Third Year Systems Project 6 : Mechanical Prototype

djfraz

The prototype for the mechanical design has been decided on and construction of the prototype has begun. Apologize for not having any pictures of the actual prototype, just the sketch.The main idea of the prototype consist of two towers which will ho...
- 30 Oct 2017
Third Year Systems Project - 5 : Bar code Scanner Design Challenge

djfraz

Code numberAllergy (colour)0000No allergy0001Red0010Green0100Blue1000Yellow0011Orange0101White1001Black For the Project we need to be able to read a card code determine the Allergen of the person. To read the bar code we are going to use a Sharp...
- 30 Oct 2017
Recommendation for robotic arm for camera?

packetgeek

In working with newer boards, I'm realizing that parts and part numbers are getting even smaller, while my eyesight is suffering from old age. In working with the Artik 520 board, I had to dig out a USB microscope to determine the part number o...
- 29 Oct 2017
Floating Halloween Ghosts

dasmann

The goal of this project was to make a ghost that would 'float' from tree to tree across my front yard. I was able to achieve this with an Arduino Uno knockoff, an Adafruit V1 Motor Shield a couple of microswitches as limit switches and an assor...
- 29 Oct 2017
Combined Magnetic Field Bone Growth Stimulation Device - Teardown

ninjatrent

A few years ago, I underwent a surgical procedure called a Spinal Fusion. Afterwards a special medical device was prescribed to assist with the fusion process. This device is called a Combined Magnetic Field Bone Growth Stimulator. The little ki...
- 28 Oct 2017
Gifted Parts.....overload.

gam3t3ch

So a friend had passed away, But he had given me a huge bag of parts. I thought today I would go through it. Some really interesting things I found in it and there was tons....I have no idea what they are. Sorry if the below vi...
- 27 Oct 2017
Flashing the Artik 520 firmware (upgrading from Fedora 22 to Fedora 24)

packetgeek

Note the following is adapted (from the vendor docs) for my Artik 520 board, with the following markings "Ver. 0.5 2016.02.05". It arrived with Fedora 22 installed. The following are notes from upgrading the board to Fedora 24, using the ...
- 23 Oct 2017
Ben Heck's Pi Bitscope portable mod

guillaume9433

Hello, i receved the Ben Heck's Pi Bitscope this week,. many thanks to team , again! That's when i realise ,i haven't 5v wall power supply with jack plug.......Not a problem, one powerbank +old usb cable+jack pulg and....now Ben Heck's Pi Bitsco...
- 22 Oct 2017
Third Year Systems Project - 4: Sensor Readings

djfraz

As part of the project we need to have a visual c# program read a sensor connected to the MBed. The sensor we decided to use was the Adafruit TCS34725 Colour Sensor, as we already have the colour sensor working on the mbed all we needed to do was to ...
- 19 Oct 2017
CNC software upgrade time?

gam3t3ch

So I have been doing a lot of cnc work lately as those who follow my youtube channel will notice. My computer crashed recently and I have been reinstalling software pondering if better stuff is out there so I decided I would poke around a bit f...
- 19 Oct 2017
Third Year Systems Project - 3: Begining to look like Something

djfraz

Some fun news first, We now have a logo for the "Company" (as this is a mock project, its a mock company). We are Called Alpha Vending Solutions I have just managed to get working the Maintenance mode Software using visual c#. The fix ...
- 17 Oct 2017
CAN communication with Hercules Safety Microcontroller - part 3c: Design a Bus Driver PCB - Layout

Jan Cumps

I'm trying out basic CAN communication on a Hercules microcontroller.In this third blog I'll design driver PCBs.The third part reviews the KiCAD PCB layout. Two Layer PCB I could have used a single layer PCB but there's no price...
- 14 Oct 2017
Third Year Systems Project - 2: Digital Design

djfraz

For the Digital Design (FPGA) aspect of the project we need the system to take inputs from the Mbed. Mostly it will be controlling Servos in a finite state machine, but when the system is in maintenance mode it needs to control the servos individuall...
- 13 Oct 2017
CAN communication with Hercules Safety Microcontroller - part 3b: Design a Bus Driver PCB - Schematics and Custom Components

Jan Cumps

I'm trying out basic CAN communication on a Hercules microcontroller.In this third blog I'll design driver PCBs.The second part describes schematic and custom KiCAD parts. Schematic I've used two sources for my schematic. The datasheet of t...
- 13 Oct 2017
Third Year Systems Project - 1: C# is killing me

djfraz

Just a quick update on the project. The initial mechanical design has been completed by my team members, and once they explain it to me; I can explain it here. As right now their scribbles make no sense to me. A couple members of the team are be...
- 12 Oct 2017
CAN communication with Hercules Safety Microcontroller - part 3a: Design a Bus Driver PCB

Jan Cumps

I'm trying out basic CAN communication on a Hercules microcontroller.In this third blog I'll design driver PCBs.The first part checks the design rules from the datasheet. Real CAN driver In the previous post I was using a makeshift CA...
- 8 Oct 2017
CAN communication with Hercules Safety Microcontroller - part 2: Communication between 2 Devices

Jan Cumps

I'm trying out basic CAN communication on a Hercules microcontroller.This second test is sending data between two controllers. I'm using interrupts for reading and writing this time.It's not yet a complete CAN implementation. The physical CAN BUS com...
- 7 Oct 2017
Third Year Systems Project - 0

djfraz

Im currently studying my third year Electrical and Electronics Engineering at Heriot Watt University. This semester we have a Project to complete as part of a team of fellow EEE students and Computing Students, and i though i would let the community ...
- 7 Oct 2017
0-24V 8A -5V +5V 2A Power Supply Made with Affordable Adjust DC-DC Converters

guillaume9433

source: mon tuto sur OUI ARE MAKERS :https://ouiaremakers.com/posts/tutoriel-diy-le-titre-de-votre-tutoriel-ici-diy-alimentation-0-20v-10a-5v-5v-2a Aujourd’*** , un tuto sur la réalisation d'une alimentation variable à b...
- 7 Oct 2017
My Verilog Diary - 1: Modules and Ports

msimon

A module is basic building block Verilog. Ports are the interface which module communicate with the environment, in other words, inputs and outputs of the module. We can assume module as a design box and ports are inputs and outputs of that box....
- 7 Oct 2017
Hantek 6022BL

djfraz

So I ordered myself a Hantek 6022BL this week, as I have wanted an oscilloscope since i started tinkering with electronics. Since I am a student though, a couple hundred pounds is a lot of drinking money to spend on one item, especially since knowing...
- 6 Oct 2017
How I Enroll for a RoadTest - Part 6: Case for CAN Analysis Tool

Jan Cumps

The element14 roadtests are a great way to learn new things. Whenever I see a test that interests me, I enroll.Success is not guaranteed. I've been selected for some, not for others. In this series I'll explain how I decide to enroll or not.I...
- 6 Oct 2017