Welcome to the new edition of #nakeddiefriday everyone. The guest today is the famous ESP8266EX by Espressif, a SoC loved by many in the electronics world.
Unfortunately, the digital section is fully covered by two topmost metal layers carrying power. We do have a glorious analog/RF section though.
SiPron page: https://siliconpr0n.org/archive/doku.php?id=infosecdj:espressif:esp8266ex
Alright, I have now (hopefully!!!) designed the last motor controllers I would ever need and sent it off for production. I made this simple Pico thing that directly controls motor controllers with configurable PWM and made the second revision of the Tine Analog Motor Controller. Both will be available via @hyalinesystems once I verify it all as working.
I did go a bit crazy with this design though.
Loving these asset tags. Check out the ‘9’ on the stamped one.
#tektronix #oscilloscope #electronics #1960s #retroTech
Is it just me or did a recent update for the iPhone introduce funky artifacts when taking pictures of PCBs?
The garbled text and distorted resistors are reminiscent of AI generated imagery. #electronics
i've made a #video detailing my mini #rack server project 
its made to accompany this thread, so for more details you can scroll up and/or down :)
#DIY #3DPrinting #SysAdmin #Linux #Electronics #FreeCAD
#Homelab
https://bram.dingelstad.works/videos/making-a-mini-server-cluster/
Hey you!
Yes you. Have you checked the batteries in the thing you haven't used for a while? No? Do it now, or as soon as possible.
This toot brought to you by a bunch of leaking Duracell and Poundshop Kodak batteries in some kit I was going to take to work today.
The best part? My cost for manufacturing the boards and shipping them to me in Canada (from China), with all applicable duty and taxes included, brings them out to about $1 per board.
I may try other designs at some point. But I can't see myself going back to the uber-expensive ones that are commercially available.
I can't wait to try one of them!
3/3
When building electronics project for permanent use - i.e. after testing on a solderless breadboard - you normally go to a #soldered perforated board of some type as a #prototype, or even for very-low-volume production.
There are different types of boards. I dislike "matrix" boards, which are just isolated pads on a grid, i.e. there are no connections between any of them. Some people swear by these; I swear at them.
I prefer protoboards that have multiple holes per pad (so you can connect multiple component leads without having to add an explicit wire jumper). If they've also got #busses - sets of pads that run the whole length or width of the board - so much the better!
Some are #crap: laminated paper PCBs where the pads lift off the board if you even try to desolder something you added. Row/column labels missing, or (like I found with some recently) that don't line up between the front and back of the board 
, or most egregiously, they don't actually show the pad pattern on the front of the board, so you have to keep flipping it to check your parts are correctly placed. One example below.
I have some from "BusBoard Prototype Systems" that I like. The SB4 is a 38 x 24 (912 hole) board that is #snappable into quarters. Two of the quarters have rows that are 4-hole, 2-hole, 4-hole. The other two are 5 2-hole pads. Both types have a single bus running along each of the 2 long sides.
But ...
1/x
Bizarre April Fools prank involved hiding Afrotechmods Youtube password for 7 years
https://youtu.be/e67WiJ6IPlQ
Seriously don't use #LM741 op amps in your circuits
I've been exploring "event-driven" designs for electronic interfaces, where instead of polling the state of a button at a fixed frequency, contact itself generates a clock signal which sets things in motion
I created a circuit which uses a transparent latch and identity comparator, generating a clock signal when there's an imbalance between the in- and outputs of the latch. The latency is ~50ns between contact and the leading edge of the clock
Now that April Fool's morning is well and truly over, I'm pleased to confirm that @rc2014 isn't pulling your leg - well, not about the existence of the #RC2014 Mini II Picasso, at least.
https://oldbytes.space/@rc2014/114261520883071259
How do I know? Here's my hands-on review of the thing. Spoiler: it's *lovely*.
I apparently walked out of the store with this thing still attached to a very cheap piece of #electronics . I think it is an Alpha #security tag. I guess the cashier didn't notice.
Are there any cool things I can do to #repurpose this? I could just bring it back to Wal-Mart but not if I can do something interesting with it.
https://openenergymonitor.org/
This project is hardcore! #OpenSource, #hardware, #firmware and #software. You can buy pre-flashed hardware.
The catch? It's not clear what components to buy or why, and the setup process is so difficult, it's effectively your new hobby.
Once I get past the learning curve, I'll be writing a buying guide and improving the documentation for how to configure the #software.
Looking for a project to do over the #Easter hols, why not gift a #raspberrPi Pico word clock or make one with your kids over the break. Great fun all round and a great quality product at the end. All parts included https://gurgleapps.etsy.com/uk/listing/1689755114/color-word-clock-kit-operated-by-wifi #electronics #STEM #maker
Wrote more documentation. GUI software tutorials are tedious to write. It's just an endless repetition of "where to click things." It's like this Bad Religion song. 
https://www.youtube.com/watch?v=zlM0vahvauU #electronics
First finished (??!) print!! Paper made from linen and ryegrass with some sphagnum inclusions. Cyanotype print is made from historical pamphlets, maps and images concerning postwar Irish agriculture. The print was then toned by soaking in water from a bog in Lixnaw in North Kerry. Finally, a clover is embroidered along the line of a gas pipeline map on the print with conductive thread, allowing the print to be a touch sensor for electronics. #papermaking #cyanotype #electronics #EnvHist
Making a DIY #Eurorack case from 3M screw rails, MFOS bipolar power supply, and scrap wood I found in this house I moved into last year. This is mainly a project for getting more practice using power tools. I lived in small rental accommodation nearly all my life so had little reason to own any until now.
Which way should I orient it? Power entering from lower right or from the upper left?
#synthdiy #synth #electronics
Assumed this was a spade terminal to earth and broke it off the power transformer. I think this is a ring lug thermistor? I get 120ohm across the two wires at room temp. Any idea what the nominal value might be? The markings E2 75, maybe 7.5kOhm?
Amp goes into protection mode without it so I've put a 2kOhm resistor in its place which lets it power on but the speakers are very quiet now. Could it be winding back the power in response to temperature? #hifi #electronics
