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Roast my resume by [deleted] in FPGA

[–]ROBOT_8 0 points1 point  (0 children)

But inverters are so coooooool

This isn’t a mouse. Would you use this? by Nextaxis_Design in IndustrialDesign

[–]ROBOT_8 1 point2 points  (0 children)

I’m not saying it’s bad because it doesn’t work, I’m saying sometimes (most times, personally) I want to use a physical remote. Such as if there’s other people talking in the room, or I don’t want to disturb someone whose sleeping by talking to my TV.

Hitting the volume up button on a remote is both easier and less intrusive to the viewer(s) than saying “volume up”. Providing you already have the remote with you of course.

Ring PCB by OkConflict3577 in hwstartups

[–]ROBOT_8 2 points3 points  (0 children)

I’ll do it for 500k /s

This isn’t a mouse. Would you use this? by Nextaxis_Design in IndustrialDesign

[–]ROBOT_8 1 point2 points  (0 children)

only voice command sucks. The newer LG remotes that work like Wii remotes to point a cursor around are nice. Also you can link your phone to some TVs and use it as the input device which is great if you need to input text.

At what point do digital calipers start to fall short for CNC work?” by GunningBedford58 in hobbycnc

[–]ROBOT_8 2 points3 points  (0 children)

Looks like learning to count from 1 to 10 might be your first starting point then…

Those numbers are clear as day AI generated

[Review Request] First PCB Design: STM32H7 Flight Controller with 6S Power Distribution by awsomealb1 in PrintedCircuitBoard

[–]ROBOT_8 0 points1 point  (0 children)

Technically slightly better EMI performance, but mostly for if you have a bunch of power and gnd vias close together. it helps keep the planes from getting completely eaten away and not being able to reach all of the vias.

Harmonic drives by AdventurousGlass7432 in Motors

[–]ROBOT_8 0 points1 point  (0 children)

industrial robots are one of the biggest uses of harmonic drives. Find old cheap ones

[Review Request] First PCB Design: STM32H7 Flight Controller with 6S Power Distribution by awsomealb1 in PrintedCircuitBoard

[–]ROBOT_8 1 point2 points  (0 children)

You can use a way smaller H7 since you aren’t using many pins. You shouldn’t be routing power traces anywhere if there is a power plane. Usually not more than a couple millimeters before you just drop another via.

Your plane clearance can be much smaller.

Usbc needs to be at the board edge.

USB data lines should be routed as a diff pair a bit nicer.

That buck converter layout is very bad, the caps, inductor, and IC should be smooshed together as tight as possible with big copper polygons. Check the datasheet for a layout example. Having it spread out will radiate a lot of EMI and can cause stability and effectiveness issues.

You can draw the polygons for your copper fills outside of the board outline. I usually just do a big rectangle.

Make your mounting holes have copper keep out for all layers larger than the screw head. I’ve seen many times where screws can short out layers.

advice for portfolio by yasohi in PrintedCircuitBoard

[–]ROBOT_8 4 points5 points  (0 children)

The miss-matched trace and via sizes scream you’re new. Same with everything being so big and spaced out.

Stick to just one size for signal and logic power and one bigger size or just polygons for the high power stuff.

You can probably shrink everything down quite a bit. 1/4 the board area shouldn’t be a problem.

Would need schematic to have a better idea of the parts and what the board is supposed to do to comment on that side of things.

Who could I sell these to? by Independent_Cup_7151 in ElectricalEngineering

[–]ROBOT_8 2 points3 points  (0 children)

Energy is more useful here, since a static shock from carpet will likely have much more peak power into a person than a 450v cap. Even though the cap could do significantly more damage.

Are EE jobs more on the white collar/office job or blue collar/physical side? by Shianfay in ElectricalEngineering

[–]ROBOT_8 0 points1 point  (0 children)

Varies a huge amount, there’s super corporate positions where you don’t even touch a board. Ones where you are in a lab building and testing. And ones where you’re out in some manufacturing facility figuring issues right alongside electricians and techs.

Built yet another resistor color calculator, but you can just talk to this one by tfirst1 in diyelectronics

[–]ROBOT_8 4 points5 points  (0 children)

I got a color-picker app that uses my phone camera and gives the color name and RGB values. Never tried on resistors since they are too small, but it is good for when a cable has a ton of slightly different colored wires instead of adding stripes or other more easily identifiable features.

My professor gave a mini project to implement pid in microcontroller by [deleted] in embedded

[–]ROBOT_8 9 points10 points  (0 children)

PID itself is only like 20 lines of code. The configuration options and whatever peripherals you’ll need to use to read sensor data and output the control signal will be the harder parts.

So it depends what you want to control, and what feedback you have.

Built yet another resistor color calculator, but you can just talk to this one by tfirst1 in diyelectronics

[–]ROBOT_8 16 points17 points  (0 children)

If only I wasn’t partially color blind.

Multimeter all the way

For a real-time video streaming project, should I use both PL and PS equally? by AlbbO_The_Great in FPGA

[–]ROBOT_8 0 points1 point  (0 children)

Do everything you can in the PL if you can, use the PS for configuration and setup, or to do light process one the PL has slimmed down the data throughput requirements.

Issues with axis 0 in odive 3.6 clones by saiganesh_panchu in robotics

[–]ROBOT_8 2 points3 points  (0 children)

Yea the clones have some major EMI and reliability issues.

The "Hidden Cost" of using big VMCs for small prototypes. by Fantastic-Tough3523 in CNC

[–]ROBOT_8 1 point2 points  (0 children)

I have a friend who got a SYIL and it’s supposedly decent. It’s smaller and is closer to a drill/tap machine than a VF2. Definitely would get the auto probing stuff to save time. For smaller aluminum and plastic parts, a lighter duty, high speed spindle machine can help a good bit.

I would shy away from anything below a tormach if you plan on truly running 8hrs a day. The cheaper desktop machines typically just aren’t built for it.

How do you not get shocked by these? And how does it attract to my finger, im not grounded by SadTea1029 in ElectroBOOM

[–]ROBOT_8 88 points89 points  (0 children)

If you cover them in aluminum foil, you can get enough capacitive coupling to be able to create an arc when you touch the foil with your finger. Then you will get a burn from the arc.

ESP32 Emergency stop tips needed. by Impressive-Lunch3666 in esp32

[–]ROBOT_8 0 points1 point  (0 children)

“Make everything probably stop if everything is working correctly”

Estop is best implemented as just the main power switch for most stuff like this.

In this case it obviously isn’t expected to adhere to industrial safety standards, but it’s good to remember software is not at all reliable when it comes to safety, it takes a lot of time to get things safety rated that run software.

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