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.

Power Consumption of a Wemos D1 mini ESP8266 - Long Term Test 3

neilk

Having returned from my holiday in the winter sun , I removed the battery from its holder and set about fitting the XH2-2.54mm female connector to the battery holder leads. I then modified the sketch to reduce the drift in the sleep time which i...
- 20 Mar 2019
ArduTrx Update: new HF modules and better documentation

bernhardmayer

During the last months I updated my project ArduTrx which was introduced here: ArduTrx - a 2-meter-band ham radio transceiver with Arduino New HF modules The Chinese manufacturer NiceRF (https://www.nicerf.com/ ) produces HF modules which ...
- 17 Mar 2019
Squeezing More Bandwidth From a 10x Passive Probe

caroline_teledynelecroy

Now that we have a better understanding of what's happening under the hood of a 10x passive oscilloscope probe, we can sum up its key characteristics. The first thing to know about such probes is that they offer relatively low bandwidth (<100 MHz)...
- 15 Mar 2019
Alps Alpine / TACT Switch(TM) for automotive

alpselectric

Today I'd like to introduce Alps Alpine's TACT switches for automotive applications.Introduction movie is available from here. Featureswide range of feeling - selection from sharp to heavyreliable contact - dome with 3 dimples helps reli...
- 13 Mar 2019
Cannot access emails or messages

dubbie

I have a problem with the Element14 web site. Whenever I try to view my emails and messages the number next to the bell turns to a dash and no matter what I do I cannot view any of the messages. Additionally, I cannot create a Blog or look at my acti...
- 12 Mar 2019
Micro DC Motors #1 : A Bit Too Small

dubbie

For my TinyMobot project ( Tiny24hourMoBot #5 : Post Script - Making it even Tinier ) I have been looking for some smaller motors to replace the continuous rotation micro servo motors I currently use. I have ordered a selection of various types...
- 11 Mar 2019
10x Passive Probes and Cable Reflections

caroline_teledynelecroy

We've been discussing the ubiquitous 10x passive probe here on Test Happens, beginning with an overview of the probe-oscilloscope system. We turned to the 10x passive probe itself and the issues posed by its constitutive circuitry. Then we covere...
- 7 Mar 2019
xArm Robotic Arm #5 : Assembled and Working Robot Arm (Sort of)

dubbie

eI have now re-assembled the robot arm more correctly and connected all the wiring together and it is all working, sort of! I downloaded the correct software now as I think the software I was looking at in Blog4 was the right one. LewanSoul make...
- 5 Mar 2019
Zynq: Custom IP IRQ

dhmarinov

Hello there, Recently I had to work with the interrupt features of Zynq and encountered some challenges.Thankfully I managed to solve them so I decided to share the information in case other...
- 5 Mar 2019
xArm Robotic Arm #4 : Wiring and Switch On

dubbie

Having completed the mechanical assembly I moved onto the electrical assembly, which is essentially just the connecting of the servo motors inserial format to the controller and then adding power. However, when trying to wire up the servo motors I di...
- 2 Mar 2019
Quo Vadis - Newark, Farnell ?!

geralds

.... this morning after a good morning coffee...,... then turning on the computer,... then to E14 Review - NXP sensorless engine control Eval kit + engine - going, NXP Sensorless Motor Control Eval Kit + Motor looking for news,.... then aft...
- 1 Mar 2019
How to program a step sequencer with Arduino

costantinorizzuti

How to program a step sequencer with Arduino: in this tutorial we show how to program an Arduino Uno board to realize a 8bit step sequencer.Find out more here: https://www.artislab.it/en/8bit-step-sequencer-with-arduino/
- 1 Mar 2019
Artis Lab

costantinorizzuti

Artis Lab creates electronic musical instruments. We deal with research and development processes about interaction design and sound design to imagine devices allowing to explore new ways to make music. Find out more on our website: https://www.artis...
- 28 Feb 2019
LewanSoul xArm Robot Arm #3 : Mechanical Build Completed

dubbie

I have now completed the mechanical build of the LewanSoul xArm Robotic Arm. Apart from a few quirky bits in the video (only) construction guide I was able to put the whole arm without too much difficulty. There are still a few aspects that I am not ...
- 26 Feb 2019
Power Consumption of a Wemos D1 mini ESP8266 - Long Term Test 2

neilk

Recap In a previous blog: https://www.element14.com/community/people/neilk/blog/2019/02/17/esp8266-power-consumption-further-studies I observed that the power consumed by the Wemos d1 mini during deep sleep was pretty negligible - ab...
- 23 Feb 2019
LewanSoul xArm : Building the Robot Arm

dubbie

There directions for building the xArm are only available on the internet as a sequence of YouTube videos, 15 in all. It is the first time I have used this approach for assembling a robot. The videos seem to be animations of the 3D CAD design and see...
- 23 Feb 2019
Send an Email from ESP8266

neilk

Background In previous blogs, I have described my investigations into using an 18650 3.7V 2400mAh battery to power a Wemos d1 mini ESP8266, via a Wemos battery shield, which plugs directly into the d1 mini, just like an Arduino shield. Whil...
- 22 Feb 2019
Industrial Applications: How NFC is making its way here!

mubeen.abbas

NFC technology is now entering industrial applications, bringing many advantages. NXP is your partner for enabling new opportunities within industrial markets. We provide a broad range of reader and tag ICs supporting the different requirements of th...
- 21 Feb 2019
Raspberry Pi is Working : Raspberry Pi is Working : Wahey !!!!!!!!!

dubbie

Eventually managed to connect to my old Raspberry Pi 1B. Not entirely sure which thing fixed the problem but I created a ssh file with no file extension, as a text file, as Shabaz described (who knew you could do such a thing? And why would you want ...
- 21 Feb 2019
How Tip Inductance Impacts a Probing System's Bandwidth

caroline_teledynelecroy

If you're using 10x passive probes with your oscilloscope, it's important to understand the bandwidth of your probing system and how it's affected by various methods of probing the signal of interest. There's a relatively easy way to ...
- 20 Feb 2019
Getting Started with an Old Raspberry Pi 1B : Connecting via Ethernet

dubbie

As it seems possible to setup the old Raspberry Pi 1B that I have borrowed I set about doing everything necessary. I inserted the SD card into my newly discovered SD card slot in my laptop and low and behold, it was recognised and mounted. Unfor...
- 20 Feb 2019
Top Applications for IoT in the Food & Beverage Retail Industry

qliktagsoftware

With the rise of hardware and software platforms to connect every object in the physical world to the internet, Internet of Things is a technology trend that has come a long way. It is molding how people interact with their environment and how ...
- 20 Feb 2019
xArm Robotic Arm by LewanSoul #1 : Getting Started

dubbie

Although mobile robots are the bees knees when it comes to robotics I do also like robot arms. I have played with a MeArm of the type featured in a coming MeArm Maker RoadTest due to start sometime in March I think. I had a redesign of the MeArm done...
- 19 Feb 2019
Getting Started with an Old Raspberry Pi #1 : Its a Model B (not a B+)

dubbie

As I am thinking of taking part in the Picasso Design Challenge that uses a Raspberry Pi 3 B+ and not knowing very much about any Raspberry Pi I thought I would borrow one and see what I could do. I obtained an old one from my son which I am now atte...
- 18 Feb 2019
ESP8266 Power Consumption - Further Studies

neilk

Introduction In a postscript to my last Blog: https://www.element14.com/community/people/neilk/blog/2019/02/14/investigating-the-power-consumption-of-a-wemos-d1-mini-esp8266 I concluded that the power consumption of the Wemos ESP8266 ...
- 17 Feb 2019