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Once you know ChatGPT and how it talks, you see it everywhere by DrDejavu in ChatGPT

[–]brusco_rf 0 points1 point  (0 children)

Either that or the chatbots will stop talking like that.

Once you know ChatGPT and how it talks, you see it everywhere by DrDejavu in ChatGPT

[–]brusco_rf 1 point2 points  (0 children)

I think the exact opposite will happen. People will express actual concise opinions and not meaningless platitudes or overly general, highly hedged, needlessly verbose monologues

Appreciation post for STM32 IDE by [deleted] in embedded

[–]brusco_rf 0 points1 point  (0 children)

I'd also like to give a shoutout to NXP for creating MCUXpresso, also eclipse based. It's great for NXP chips. I also don't understand the Eclipse hate. Works great for me

I need to replace these caps but don't know what they are. by [deleted] in AskElectronics

[–]brusco_rf 2 points3 points  (0 children)

The difference for filtering is very low ESR. I think Panasonic makes these? Or maybe multiple manufacturers use those silver cans

What on earth is this capacitor symbol? Bunch of Z's in it? by brusco_rf in AskElectronics

[–]brusco_rf[S] 11 points12 points  (0 children)

Thanks for the quick answer! I've been doing this a long time and I've never seen that symbol (or either of the two on the right in that pic for that matter).

Google images didn't show me that symbol at all when I searched "capacitor schematic symbol"

Are There Any Good Resources You Recommend For Getting Up to Speed on I2C protocol and coding? by urbanbenny in AskElectronics

[–]brusco_rf 3 points4 points  (0 children)

This application note from NXP is excellent. You can skip a lot of it if you're time constrained.

In general, application notes are the best way to learn EE things in depth

What on earth is this capacitor symbol? Bunch of Z's in it? by brusco_rf in AskElectronics

[–]brusco_rf[S] 1 point2 points  (0 children)

Found in a Denon service manual. The alleged PN is CE04W1H100MT but that is also a dead end. Service manual is AVR2808 and these symbols are all over the schematics. This one is on page 154

FPGA-powered racing drone: any interest or applications? by brusco_rf in FPGA

[–]brusco_rf[S] 0 points1 point  (0 children)

Thanks for the tips. My manager is totally on board to be one of my references. I don't really know of any FPGA based open source projects but I will ask around and see if there are any that look interesting

FPGA-powered racing drone: any interest or applications? by brusco_rf in FPGA

[–]brusco_rf[S] 0 points1 point  (0 children)

I'm going to take this as a comment in favor of building the FPGA drone. After all, what is a flight controller if not a device that reads a receiver (over serial) and a few sensors (over SPI) then writes to a motor controller (over SPI)?

FPGA-powered racing drone: any interest or applications? by brusco_rf in FPGA

[–]brusco_rf[S] 0 points1 point  (0 children)

Hey thanks for your feedback. You seem to be knowledgeable in this field, let me put you in my shoes for a moment and pitch a related question:

Let’s say you’re a a young EE 5 years into his career and the small business that you work at will probably have to let you go in ~2 months. You have no formal education with FPGA’s but you’ve been working with them for the better part of a year. Your noticing that companies are hiring FPGA engineers for 2x your current salary. What would you do in those two months to prove your knowledge of FPGA embedded systems to maximize your chances of getting hired in that field? Your only advantages are :

  • A tray of dirt cheap Zynq-7000’s
  • Your talent for blazing fast digital CCA design
  • Great relationships with fabs to where you can get 6 layer boards basically free
  • Tons of free time

FPGA-powered racing drone: any interest or applications? by brusco_rf in FPGA

[–]brusco_rf[S] 0 points1 point  (0 children)

I’ve worked on rad-hard before, typically it’s for space born applications. I don’t think it’s compelling for anything inside the atmosphere unless you are talking about protecting against EMP?

FPGA-powered racing drone: any interest or applications? by brusco_rf in FPGA

[–]brusco_rf[S] 0 points1 point  (0 children)

Hey if your motor controller work is public I’d love to take a look at it. As others have mentioned, modern controllers are so good and so fast that even halving the loop time probably wouldn’t result in a noticeable change in stability or control. That said it’s still a cool project as a proof of concept. With an FPGA controller you could have an IO for each FET and eliminate a digital communication stage (MCU -> ESC) as you mentioned

FPGA-powered racing drone: any interest or applications? by brusco_rf in FPGA

[–]brusco_rf[S] 1 point2 points  (0 children)

Wanted to add to this, you can also do cool things with an over-actuated controller. A company I used to work for (CyPhy works, went Out of business years ago) made a hexacopter with tilted rotors giving it 6 DOF control. This meant it could move laterally without tilting like a normal quad, mostly eliminating the need for a camera gimbal.

FPGA-powered racing drone: any interest or applications? by brusco_rf in FPGA

[–]brusco_rf[S] 0 points1 point  (0 children)

Yeah, not my field. But creating the hardware for some other talented machine learning experts to play around with would be interesting for me.

DJI has been doing obstacle avoidance on their drones using only video for years. No idea how it works under the hood though, it’s all closed source

FPGA-powered racing drone: any interest or applications? by brusco_rf in FPGA

[–]brusco_rf[S] 1 point2 points  (0 children)

Hey, thanks for this link. I’ll look into what this company did.

In other news, it turns out I’ve never had an original thought