Reddit:Electronics

Hey everyone! Hope the UK timezone rule for the WBW still holds true haha.

Almost exactly three years back I posted my beginner hobbyist bench on the sub and got a ton of kind and helpful feedback from y'all.

This new album is a present-day update three years later, after many changes and acquisitions during and for my projects. Overall I learned a ton about what I actually use the most and tried to make it all zero nuisance to get to. If it takes too many steps to get out or get ready it's no good.

Some of your predictions back then also came true!

• I did lob a 3D printer onto that side table and got into CAD and printing in a major way, which I now use in a lot of projects for case parts, mechanical bits, etc. I wound up building a few robots out of a mix of alu extrusion beams and 3D-printed parts. This is why you see a lot more tools now dedicated to mechanics - measuring, fastening, glueing, cutting, deburring, etc. - to complement the electronics toolset.

• I ended up getting a low-end benchtop meter after I got tired of getting out and throwing around my $20 handheld. Much happier with a permanent fixture.

• Dremel (well, Proxxon) on a steel cable retractor, permanently plugged in. Actually best idea ever! My circumstances don't really allow for a ton of dust and dirt creation, but for a quick cut or a grind/polish this is so convenient to grab down, and managable.

• I got my hands on two airline galley trolleys with pull-out tables. In my limited space this is perfect for additional on-demand benchtop space, and it's where I much of my growing electronics stock and some simple hardware.

• Shoutout to that Omnifixo. The hype for once is true. I've never been happier soldering and use it daily.

It's of course hardly ever this presentable. I just had some time off work and did a big tidying pass that reminded me of the older beauty shots.

My first time designing a microcontroller board. I wanted to look into getting it assembled by overseas manufacturers but they wanted to charge me over $100 and take over a month to assemble and I said nah I’ll do it myself.

I got a convection toaster oven off of facebook marketplace for like $10 and drilled a small hole in the back for a thermocouple which is connected to an ESP32 dev board.

I didn’t create a controller which is something I might do eventually but for the time being I had to manually adjust the oven temperature to try and match the reflow curve as best as I could.

You can see in the third picture the red line is the expected reflow curve from the solder paste datasheet and the blue line was the real time temperature readings. I was using that graph in real time to make my adjustments.

Placing all the components took me about an hour and I had practiced following the reflow curve twice lol but the end result was a really nice looking PCB!

Not only that, but my PC was able to detect the board as a USB DFU device when I pressed the boot switch while plugging the cable into the board!

All in all very happy with how this turned out and I think I did pretty well for my first time doing something like this!

TL;DR Reflowed a board for the first time using a convection toaster oven that I manually controlled and everything worked out :)

First 2 pictures are corner to corner and last is just bent in half. Found on ali.

now granted falstad probably isn't the best sim around, but for a free one its really easy to use and intuitive. I am shopping around for good sims though so if yall have any suggestions on better sims that match falsteds simulation im open ears.

When you're prototyping but the SOIC package IC you ordered is in actuality apparently a "wide body SOIC"

Got to get creative fitting it onto a SOIC-2-DIP converter! If it works, it works!

Ayo guys this is follow up on my post 10 days ago about changing the micro usb port on third party controller so I finally got thr tp4056 and did lots of soldering and sanding t the shell of the controller but couldn't tget it to stay inside so it's gonna be external as i use it only once in a while😅

Amazing how you can have spare parts sit in draws for 25 years untouched. I'm a fan of AMD so I was excited to find two of these are from them. I'm wishing I had a better microscope to de-cap and view the die. I'll have to figure out how to see if Evil Monkeyz Designz is interested in any of these for a de-capping.

Parts Shown Above:

I mean atleast it didn't blow up... I really should've gotten a pcb...

I need a switch that can handle some power and don't have the patiance to wait for it from shipping, so what do we do? We take out the key ignition with bonus volt meter that's ment for escooter to be able to start it and shut it off with a key.

Recapping an Apple IIe and the size difference blew me away.

Figured someone might enjoy this 🤷🏻‍♀️

Fo

My dad built this into a Snap-On tool case back in the 80s. I'm currently working on a PCB design so he can put together a new one.

FCC ID: 2AN9S-TPX00227

Arduino’s upcoming Nesso N1 has appeared in a recent FCC filing, offering one of the most detailed looks at the device so far. Although the board has been announced, it has not yet reached retail, and the filing confirms that development is nearing completion. The documents include complete schematics, which is uncommon and provides an unusually transparent view of the design.

The Nesso N1 is based on an ESP32 C6 controller with support for Wi Fi, Bluetooth Low Energy, and LoRa at 915 MHz. It includes a 1.14 inch color touchscreen, detachable antennas, a BMI270 motion sensor, Grove and Qwiic expansion ports, and a built in 200 mAh battery for portable use. Internal and external photos show a compact layout focused on prototyping flexibility.

Tonight I've sawn a to220 insulated mosfet, so It can fit where i want

This is a stereo audio amplifier for my car, and that MOSFET will turn switch the whole module on with the electric antenna signal

Found out that the FCC basically lets you peek inside almost any device that emits RF energy. looked into a few cool products, then spent a bit too much time combing through filings that ended up becoming a huge photo set. Here are a few examples!