Yeah, but can you eat a rocket?

i use esp8266 because it's half the price of arduino

ALL THE BOARDS .. Dis neard which.. Umm hello Grampaaa i needs all da Boardzzzz

It looks like A 1990s POS macro board

BRO SO LAME dis Dumb.. I WANT ONE

Use what is most appropriate for the project.

They are both computers

👍

結果 PCB到手的隔天 客戶要求更改功能 PCB必須重新設計 👏👏👏👍

i dont know how to design PCB's and circuits in Altium Designer, can I directly start with this tutorials

Really enjoyed designing the PCB with you! Thank you for taking the time to make these videos.

I'm not a fan of Rpi's, they're way too slow and I got no purpose with its OS. So I sold them. Going along with Arduino.

Fyi : in ms country, arduino are priced between MYR15 to MYR30 while raspberry pi are easily reach up to MYR200... So yeah, potato is more useful than rocket in this context

Soooooo raspberry pi is a computer i can run windows on?

Thank you for making this begineer friendly! I have a question at 43:38, how does one decide the ESR rating is good enough? I dont understand the frequency rating, what frequency will our capacitor be switching? Any guidance is greatly appreciated!

Mmmmmmmm, pie.

I have one that came in that exact box (probably labeled differently because of how these things are produced and sold). I've used it a lot, and I totally agree that you should get one. I've even used it as a cold blow dryer before. All my canned air is being repurposed as pesticide now, since that freezing liquid is a great way to kill things you don't want in your house.

Thank you very much!! Very good video!

🇮🇩

Thank you for the video, very useful. Here is a little summary for our fellows of this youtube channel: Info 1 @ 4:40: ground plane in ¼ wavelength antenna is extremely important and must be of a size superior to ¼ λ Info 2 @ 19:40: ESP32 dev kit (with 2.4 GHz PIFA) placed on middle of a big metal plate (GND connected) --> shift of resonant frequency to 1.9 GHz. The radiation pattern also evolves, with barely no emission through the GND plane. Info 3 @ 26:10: interesting to see that some edges of the GND plane (not the use case of info 2) radiates the mode of the resonant frequency Info 4 @ 34:00: if you have a hole close to the antenna serving to attach your PCB, use plastic screw. If you can’t, make sure your metal screw is floating and not connected to the GND signal.

Seeing posts of people placing the ESP32 module in the middle of a ground plane always surprises me. It's not necessarily about proving they are amateurs in antenna design-most of us are, as antenna design is a highly specialized and complex field, essentially a profession in its own right. Rather, it often indicates that these designers have not taken the time to read even a single page of the application notes or datasheet for the ESP32. Espressif clearly provides guidance in these documents on best practices for placing their module on a PCB motherboard, including a prominently highlighted note coming with pictures stating to never place the ESP32 in the middle of a ground plane.

I recognize the "interleaved ground" scheme on all flat cables in the PC (floppy, PATA etc...). Honestly I am surprised at the "sub optimal design" of such a well known commercial product as Arduino. This is really instructive.

Just what I needed, really great explanation.

I used the esp32 as the ecu in an EV. Worked pretty well. Yes, the ADCs are noisy. But i was able to talk spi to a 2 port CAN board, and control motors with LED library. The biggest challenge with arduino and esp32 is fiddling with Billy Bob's library to make it, lets say, industrial. I wasnt sure about how to use the second spi port. So you have to proceed with paranoia about everything. Always keep a working example. Always do automated testing. I wish I could confidently hook up as many spi devices as I want and a esprog hardware debugger effortlessly. I think it's possible, but certainly not easy. I had it working at one point, but a year later I couldn't figure out that debugger again. I don't think the no pwm output/measurement in hardware is a legit critism. There is dedicated hardware. Also it has a built-in CAN interface, which handy for automotive products. The one I bought had a display i used to display the firmware version and debug stuff. I had plans to control it over wifi or Bluetooth, but never got around to it (like, e.g. let me summon my car!).

I have one of those electric blowers as well, but I much prefer to use my air compressor. An added filter makes sure that the air coming out from the nozzle is perfectly free from oil or water particles. And I can set the exact air pressure with a valve. If the tank is pressurized, then I can also use it even if there is a power outage, and the tank can store lot more than those “air on a can” things do. Of course, a compressor costs more up front, but I’m saving a lot of money in the long run. I don’t need to go to the store every time I run out of air, and I’m not polluting the environment with a ton of empty cans. The electric blower has a lot of these advantages as well, along with being portable. But for a fixed workbench environment, a compressor is still a much better option since it provides better control and flexibility over the air stream. Plus it can be used for multiple things, not only dust cleaning.

I prefer my air compressor set at 125 psi to cleanse anything that needs dusting.

kind of late but thanks so much for the tutorials so far! I've been following along with intentions of making my own projects

The only thing missing in raspberry is analog pins

I have a compressor at my office with a air conditioning group (oil and moisture trap) i test some pneumatic things fro. Time to time but for drying out washed boards and dusting it is indispensible

10$ aliexpress one do the same job for less money

Great video and highly informative! Which software was used for the simulations?

Using the cans for blowing dust is like casting pearls before swine ... The only thing I (15+ years as a design engineer) used them for, is to quick check my circuits behaviour by cooling it down fast. Anyway, good choice buying one of these! Also bought one years ago.

It's not "air" inside, it's refrigerant.

It's compact and portable, but I still prefer small oil-less compressor. High pressure, store a decent volume, and multifunction (paint spray etc.). Price different is relatively negligible

rasberry is when u want a minicomputer, arduino is when u want to build robot

Careful with blowing pressurized air at your skin, can cause injection injuries. Not sure if the pressure is enough in these kinds of things though, but 7bar/100psi is enough to be a risk apparently. pmc.ncbi.nlm.nih.gov/articles/PMC2291478/

I have one of the USB-C changed air blowers, and it works great. Blows really strong and last for a long time. But it will blow dust all over the shop, so I take it utside when I have something with a lot of dust that needs cleaning.

Are there ones that are ESD-safe by-design?

rockets are fine but have you ever tried mashed potatoes or french fries?

Breathing in dust is not a good idea. I think it's better to use a soft brush with a long pile and a vacuum cleaner.

Works very well for cleaning general purpose things, but I would be very careful with electric dusters (or compressors). They also suck up dust particles, and those rubbing along the side of hoses/exhausts can build up significant static charge on the particles. Sounds like BS, and I thought it wouldst be such a problem but I think I killed a CPU cleaning a PC with compressed air once. Since then I only use canned air.

I hate those cans... the only that happens is the freezing stuff that comes out.

For chip cold bug diagnostics the electric blowers dont get cold enough fast enough since there isnt the same gas pressure differential. So I use both an 150L workshop air compressor for cleaning and compressed gas cans that can actually freeze chips for those types of diagnostics.

I always see people or companies using the PI

So a pocket sized desktop computer.

too expensive

I came here after seeing your LinkedIn post from a couple weeks ago. Just wanted to drop in and show some support and appreciation for all the hard work you do to create such great content and provide mentorship for noobs like me. This is def on my plate of content to get to. But with work and my grad program, it’s just taking a while to get there. I intend on taking one of your Fedevel courses soon as well, particularly the Advanced Hardware Design!

and the biggest difference of them all: power consumption

In my opinion Adruino is for mechanical projects Raspberry pi is for computing projects

A much better way of explaining the measured impedance is that if any length of coax is terminated with 50 ohms then there will be no reflected signal implying that the load and coax have the exact same impedance. If it is terminated with anything other than 50 ohm there will be a refection.