These nanobarcodes could be used in a variety of sensing applications in the future. (Image Credit: University of Technology Sydney) Barcodes are used to label and identify everyday items, but what if they could be shrunk a million times from m...
The image shows the crystal disk containing erbium atoms in the middle. Meanwhile, the red disks represent the light reflecting back and forth (Image Credit: Christoph Hohmann (MCQST)) The first quantum revolution introduced semiconductor electronics...
I recently came across same small footprint SAMD21 boards that I've found to be very useful for tinkering. I've used the SAMD21 processors with a number of Arduino boards (Nano 33 IoT, MKR WAN 1300, MKR WiFi 1010) and I've been happy with...
EnviroDNA has created a probe that could determine if the Tasmanian Tiger still exists in the wild. (Image Credit: Tasmanian Archive and Heritage Office, PH30-1-9210) Nothing more fun in science than advances in Cryptozoology. EnviroDNA, an Aust...
I'm messing about with a couple of old IC voltage regulator parts from a box of spare bits. Nothing very directed, just what takes my interest. This blog was inspired by Andrew posting this question Instrument Control Board - Prototyping...
I've been taking a break from FPGA projects for the last couple of weeks. We've had hazardous air quality due to the wildfires and even indoors with a HEPA filter I've found it difficult to concentrate. I was browsing the Adafruit store lo...
I don't know about you, but I have a strange fascination watching a parcel making its way towards me across the globe. It's even better when the contents of the package are a mystery. A part of E14's random generosity, I recently found such a mystery...
On many Ethernet devices, you find magnetics - a transformer - as part of the physical layer. The example above is from a TI TM4C launchpad. It looks like a solid block - like a silicon package. I have a defect launchpad so I scavenge...
Here on the element14 Community we want to acknowledge the hard work that our members put into maintaining the amazing discussions, projects, feedback and positive behaviours that we see regularly as part of the community here on the website. We...
I grew up in the age of the Soundblaster soundcard, the reputable brand by Creative which lead the charge in MS-DOS supported audio. In my eyes the fabled Soundblaster Awe 32 with soundfonts was the creme de la creme of soundcards, with its own RAM f...
I learned a trick from w2aew: how to measure current if you don't have a current probe.He's using a N-channel JFET as example. I adapted it to a P-channel type - the J176.This second post is the practical part. No talk and simulation. A real circuit ...
I learned a trick from w2aew: how to measure current if you don't have a current probe.He's using a N-channel JFET as example. I adapted it to a P-channel type - the J176.w2aew describes this in a video. He also published the notes. Follow and unders...
I reviewed an analog small signal switch in post 1: Simple analog JFET switch - part 1: schema, simulate and test.Here I'm checking what the limits are - the small linear part of the operational region where the P-channel JFET acts as a resistor.The ...
A simple low signal / audio "soft" switch with a p-channel JFET.It's very easy to make, with common components. Low power.The circuit is published on neatcircuits.com I've ordered a set of transistors to play with. One of them is a ON Semiconduc...
I'm checking if I can use Doxygen to create documentation for the electronic load firmware.Doxygen is an application that can generate documentation based on declarations and comments in the source code. The eLoad firmware uses an API style that shou...
When we are taught about op amps, the usual starting point is a perfect op amp. That amplifierhas infinite gain, infinite input resistance on the two inputs, zero output resistance, and soforth. That's done so that the focus can be on understanding ...
So (lets simulate that) my last release created a production issue.The SCPI interpretor times out regularly, when used from one of the available PC clients.Maybe the job optimisation in the ADC task takes away free time from the UART RTOS task?...
Scenario:Developments for current cycle are finished (by the developer. That's me) and are available in my repo's development branch.All that code has already been tested, built (by the developer. That's me).All code has been reviewed and accep...
A possible strategy for using GIT and working with branches. part 2: bug fixes on the released code Fixing Bugs in Released Code while Development is Going On This is a common challenge in for any project that has active develop...
A possible strategy for using GIT and working with branches.
In this part 1: working on new developments.
In part 2: bug fixes on the released code
I am suggesting a GitHub process, but it translates to other platforms with pull ...
