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@@emilbiju2564 yes, I do bro! Didn’t you win the LEGO giveaway? Thanks, stay tuned for more cool stuff 😁

Yes I did

I quit lego as well. Nowadays, I'm more into working out and also, I'm studying to get into a medical college to become a doctor in future

@@emilbiju2564 that’s so cool! I want to start working out soon but I’m too young for the gyms here, even though I’d like a pull up bar or something at home (that would be fun). Hope your studying goes well 😁

Just do pushups, ab exercises, squats and school bag curls. Calisthenics is always an option for non gymmers

@@harrymagooslum5770 thank you so much! This means a lot 😁

thank you!

Ok, thank you so much, great advice! I am using a stencil to solder something in a couple days (when I get around to it) so I’ll keep this in mind and tell you how I go afterwards 😁

@@pavano6970 you can upload a sketch as soon as you receive the boards, it is very easy

@@hxtec32 that's great! Thanks for the quick reply. I am building mine with USB UART instead of direct USB. This doesn't create any difference in programming right?

@@keithsummers1889 and that’s exactly what I’m going to be doing with my new videos, since I made a new board which reverse polarity protects its voltage input with an N-channel MOSFET and ideal diode controller, before being fed into a Buck converter. Most people would interpret ‘not sure’ as ‘not advisable to do this in a design’ in the context I mentioned this in. It should still ensure no one thinks using an LDO is a good idea for stepping down voltage with any more than a ~3V drop, at this amount of current. This is a free video, which I have learned knowledge about using free information online. Do you consider reading hundreds of Texas Instruments, Infineon, and Espressif application notes formal education? What about watching videos by Altium, which explain how to implement many things explained in this video? Do you consider spending thousands of hours reading data sheets and finding the right parts for my boards, formal education? With all due respect, I’m a 13 year old child in Year 10 who can’t even take any subjects at school to teach me these things, let alone take a university course with will cost tens of thousands of dollars a year which we don’t have. So, if you’d like to see me ‘tell the story all over again’, I can make a video doing exactly that, and if you’d like more information about these boards, given that I’ve made 3 successful boards this past year, I’d be happy to help you through this comments section. But, if you’re here just to criticise me and tell me that I need to go to university to learn basic circuit board design such as this, which probably won’t happen for another 2 years, I can’t help you with anything. Thanks 😁

​@@hxtec32 You you also consider recommending medicines if you had no formal education as a doctor? Just to excuse it all saying -- "I'm only a 13 yr old child"? Personally, I do have the formal education and 30 years experience and I can tell you that even I would "get beat" up for being inaccurate. I'm saying here that you're way over your head on this topic. But, I will say that you are further along than most people at this time in your life and I look forward to what you will produce as you arrive to your Master degree in education.

@@keithsummers1889 thank you, but the subject of this video is nothing that should be used by anyone in medical or even automotive purposes where things breaking puts someone’s life in danger. The ESP32-S3 chip is very low cost with lots of functionality, and reliability is a trade-off here. People watching this video know this. Almost every electronic part datasheet out there will have a section saying ‘this component is not permitted to be used in life-saving devices’, and for good reason. Texas Instruments is a great example of the difference between reliable and hobby/non-critical applications, since all of their automotive parts have a -Q1 at the end of the part number, while less reliable, or lower temperature range parts will not. This video was simply an attempt at educating people about designing from the bare ESP32-S3 chip for their own hobby projects, and not meant to be taken as anything more. My GitHub schematic specifically states that I do not assume reliability from anything produced as a result of my own design. This is one of the reasons why I don’t share the PCB files because I don’t want people manufacturing my boards if they haven’t been tested and work properly. But, thanks for bringing this to light, I might add some kind of notice to my next video saying that my advice is only to be taken into consideration for hobby projects.

@@keithsummers1889 and, no. This topic is not ‘way over my head’ and I don’t think I need to prove that to anyone. There isn’t even any high speed digital signals, and impedance matching is almost optional for the USB differential pair (even though I still do it), so I would argue that designing with ESP32 is even easier than atMega, especially when using the modules. I know I say things like ‘I don’t know what harmonics are’ and pretend to seem like I don’t know what I’m doing, but this is clearly for comedic effect and to shorten the length of the video. Not everyone needs to be lectured on every detail of everything; most will be annoyed and click off the video I find, at least on this platform. If this was way over my head, how could the board have worked, and the 2 others I made after it? If a surgeon performs 1000 surgeries in his lifetime without any of the patients having any issues caused by the surgery, was he just waving around metal tweezers and cutting random things, or did he know what he was doing and began to know more of what he was doing as time went on?

@@keithsummers1889 unfortunately for you, nowadays, there are probably petabytes of free, open source information on electronics online, making it a very foolish decision (in my opinion) to wait until University to start learning, when you’ll be forced into hundreds of thousands of dollars of student loans before you even have skills. But, that’s just how I roll. No disrespect towards you or any others.

True, thanks man!

@@conorstewart2214 there are multiple sensors per bot. An LED draws about 20mA x 4 = 80mA. High powered IR distance sensors likely draw 30 to 50 mA on average x 4 = 200mA. Multi zone ranging infrared sensors like the one I had in this robot draw 100mA by themselves. I had one here, but would’ve liked to have 2, so 200mA. A buzzer takes anywhere from 200mA (small ones) to 20mA (big ones). This comment about me not knowing why none of the dev boards had a high current output was not to criticise anyone, but address the fact that there are not many ESP32-S3 dev boards designed for robotics. I said ‘these numbers’ also referring to the maximum input voltage of 36V, and the closest one to that is an Arduino Nano which I personally wouldn’t use anything more than a 3S LiPo on so that there’s a safety factor for inductive spikes. The Arduino Nano is quite an exception too, most boards will be damaged when more than 7V is used as the input voltage. Most of the sensors have decoupling on them, so I figured I wouldn’t need 3 x 300mA external LDOs (which I couldn’t even do since I don’t have a 5V source directly stepped down from the battery on this robot), and instead, used the 2.5A output of the 3.3V regulator. It is widely considered as acceptable on most ESP32-S3 boards to run sensors and even very small motors off of the microcontrollers 3.3V supply voltage. Hope this helps. Thanks :)

you can use any GPIOs for SDA or SCL, with Wire.begin(SDA, SCL) in Arduino. That is, any GPIOs which aren't strapping pins (0, 3, 45, 46), PSRAM pins (33, 34, 35, 36, 37), or USB pins (19, 20). Thanks

@@hxtec32 Thanks I will try

@@jolttsp thanks man. Hope you’ll make some awesome stuff when you get back to it 😁. Also, your channel badge changed to the 1 month one 👍👍 That’s very

@@hxtec32 just as soon as I get out of this software dungeon 😅

Thanks! Need to do the board layout and maybe even improve the boards shape before I might be able to start selling it though

Well, I get enough money from this video and future videos on these PCBs, yes. But for now, I don’t have any money to invest in manufacturing PCBs to sell to people… I would probably need to buy like 100 PCBs and 100 remotes if I was going to sell them.

@@shaileshparab3485 true, true. Thanks!

@@AimingIsOverrated look again lol

I haven't uploaded the schematic yet. But will let you know. In the mean time, here are some application notes about Power ORing which I would recommend reading: www.eetimes.com/fundamentals-of-power-system-oring/ www.eevblog.com/forum/beginners/diode-oring-circuit/ www.ti.com/lit/an/slvae57b/slvae57b.pdf?ts=1719792864533&ref_url=https%253A%252F%252Fwww.google.com%252F www.diodes.com/assets/Datasheets/AP74700Q.pdf - page 17 specifically for the power ORing stuff. Hope this helps.

@@hxtec32 Much appreciated, thank you.

thanks!

where to buy bro

@@bektinurwanto You can buy it from PCBWay pcbway.com/s/ZiFU8L

@@hxtec32 I asked about the PCB heater

@@fotografm envato elements subscription

@@imadaddin818 yes, you can use bidirectional logic level shifting, this one is fingernail sized and does 4 channels: www.pololu.com/product/2595 for $3… this is what I do for my own robot. If designing your own PCB, search BSS138 logic level shifting online

Yes, through email if you go to the about page of my channel (click on the description), you can contact me if you’d like brief advice with your board (I am very, very busy though)

@@hxtec32yeah sure i can email you , i will share about my fyp project

True, but I still use version 2 since it’s stable and not buggy

@@bato6640 maybe do separate regulators for the ESP and the servos? I’m not sure though

@@piotrwesoek1663 you don’t need the pull up resistor, I think it’s in the chip itself maybe… I’ve made 2 successful boards without the pull up resistor on the USB_D+ line, never had any issues. Thanks

@@hxtec32 Thank you for the answer !!!

Well if I get enough views and revenue from this video, maybe 😁

Thanks dude! Induction indeed

@@damani662 I think that’s what I’ll be doing next video, actually. Thanks so much!

@@smb1397 I’m pretty sure it’s an 8 year old chip by now. But, yes, I do agree.

@@akauppi2 Yessss! Thank you so much for your generous donation and membership! You are my second member so far 😁😁

@@robotarenachallenge true. Haven’t tried that yet though

@@bengtkarlsson9747 thanks so much man!

Dang… I don’t think I can either actually, all from digikey, mouser, or lcsc

@@hxtec32 yeah, also buying from them isn't possible because of shipping😅

@@peterlue9274 thanks so much man! Will let you know (in a couple years, of course)

@@hxtec32 tyvm!

@@hxtec32 I have an idea for a robotics company that I think will revolutionize the world. It is simple and easily scalable. Sadly, I don't have the money or expertise to get it going. Maybe you will soon.

@@tomaszkarwik6357 facts! Thanks dude!

USB connection, straight to GPIO19 and 20