Відео

One of the best tutorials I've seen for explaining SIPO (Serial In Parallel Out) shift registers. Thank you

I'm sure that you intend this to be helpful but I wouldn't go touching components with my bare hands. And hopefully there's a ESD defense at work here somewhere.

Interesting ... I wonder what the internal mechanism looks like 🤔 Thanks for wasting your weekend to benefit others 😊✌🇦🇺

did you try to shield your hall sensor from outside... magnetic material like a tin can or more effective with permalloy foil ?

I'm happy to see others share my interest! I've been working on similar projects, exploring ways to utilize capacitors in a more battery-like fashion. While they're fundamentally different components, I've achieved some promising results. In fact, I developed a formula for this purpose when I was just 14 years old. I understand it might be controversial, but I urge you not to be discouraged by the math in the video description. The video itself might not be for everyone, but the underlying mathematics is sound. Here's the idea: Why not take a look at the equations I present? If they align with your understanding, perhaps they could be helpful for your capacitor project as well! ua-cam.com/video/Q7EmfHowWkU/v-deo.htmlsi=nv0cwxwRTZmoLwz0 😊

Any thoughts what would be involved in writing an ESP32 application, that takes data from the uart, and passes it wirelessly either via bluetooth** (SPP) or via Wifi? For Wifi, I imagine the ESP32 could act as a web server (TCP) and display the RS232 data, but maybe there's also a UDP way to send data to a PC on the same network? I imagine, if the receiving application (mobile or PC) is written with the flutter framework, it could display the RS232 data with style! **I purchase some USB-bluetooth dongles (Feasycom BP102, HC-05/HC-06/CP2102 master modules, etc).. but none can connect to any android phone! For example, when a Samsung S5 tries to connect to one of the bluetooth dongles, it will stop blinking, but after a couple seconds, Android says 'Can't communicate with the FSC_BP102' or HC-05, or HC06, etc.

7:24 don't drive that pin low, set it to INPUT aka high impedance state. Datasheet specifically warns against setting GPIO pin to LOW if you are using it to power the LMT01, something about reverse-biasing damaging the sensor.

How long did it take to flash 1000 boards?

What is that black tube you have wrapped around the end of the sensor?

thank you so much :)))

Great work on char and string manipulations. Could you talk about indexOf , trim and using substring? Many thanks.

Is it possible to just install a flow meter which the esp can read? in the pipe after the actual meter

I have a IGT S2000 Double Diamonds 25 cent quarter machine from Balley 90's in storage with no way to hook up or plug in due to no electricity. When I moved it would light up but the reel would not spin. What are your thoughts on a fix? After watching your video I do remember when my husband was alive he fixed it and we ordered a board from e-Bay and everything worked and then we would shut off when not playing it and sometimes just kept it on. Do you think since it was just left on, it might have just drained the battery? I don't know how to find the back board on my machine. Maybe I should hire someone. If so, how do I find a slot machine tech?

Amazing! This worked perfectly for me. You just saved me $34! Thank you :)

Exactly what I was looking for, thank you!

Just tested my Arduino Uno-compatible. Not a real ATMEGA328, it seems, but then it was only £7.27 incl. P&P!

Brilliant presentation. Strings get me every time I come back to coding in C/C++. Your tutorial is really helpful. Thanks!

I was wanting to know how the bug actually gets zapped and your video answered that! Bug has to touch both outer and the inner screens at the same time. Glad you showed how to safely test that by (safely) shorting it to produce the spark.

Thank you!

very great

Spent the whole day tearing apart and cleaning the dryer. The last thing on the list was to replace this suckered since it didn't have a switch. Well ladies and gents, not anymore.

Excellent Project for those who saw serial memory as mystical chips. (Sorry it took me 10 years to see this video)

It was much easier to work with Parallel Static Rams, in non-microprocessor based applications , however most such memories are now obsolete and not manufactured like the 6116 a 16K static memory, set as 2K x 8 bit RAM. So using serial Ic2 memories you do need a microprocessor to feed instructions into it, it is a sequential information into the serial memory chip, by sequential I mean start bit followed by chip select bit, followed by whether you want it to read or write to it, then entering upper memory bits and then lower memory bits for the address, then followed by the actuall 8 bit data, and finally a stop bit, a very tedious process, all just to save space and number of pins, and wide data and address lines on a PCB, all to do with miniaturisation off things, each time it steps through its sequence an acknowledge bit is send back to the processor, so it knows how the chip is doing, So basically serial memory is still configured as parallel internally except the chip has built in seral to parallel and parallel to serial decoder, so only requires a fewer pins, this was done to reduce the foot print, so its speed is compromised due to serial loading and serial reading of data.,

I used a super old random lithium cellphone battery in my multimeter years ago, I use the meter almost everyday and it's never needed charging, just keeps powering.🤷‍♂️😆

I can't believe I found this video. I was around 10 years old when I first saw it 14 years ago. How the time flies!

Fantastic video, exactly what I need! Did I miss the party on how exactly to monitor the power state? The Boron does all that? That link is 404... So, just asking 😁

well im having trouble with is method

Super interesting video. I also work on wa2812B matrix, one even made custom from strip 22x22 px. Matrix animations in excel are a new thing for me and they look super interesting, especially for some pixel art solutions (I love retro gaming). For simpler things, like shapes and the like, it's probably better to stick to mathematical formulas for animation. _Edit, just to add, I have made pygame (game) version that can animate matrix in similar fashion, because python is my first language, I'm much worse with C, but I would like to make something similar in arduino, with some of the cheap touch screens. I will definitely try._

"Drank too much coffee" always an excuse

HAHA, my device takes less than this ultra low power sensor and I need sensor that takes much less, like two orders of magnitude less.... but if I clock power supply for it once every 5 seconds, hmmm, but photoresistor is easier to use , with some divider and probing quickly.

SO; HOW MANY TIME YOU HAVE WON; USING YOUR OWN METHOD??? = ASSHOLE !!!!!!

how did you set up excel like that?

This firmware would work great on the "ESP32 CheapYellowDisplay" also known as the ESP32-2432S028R

You could make It in a simplyer manner using programmable leds I did It a similar work: ua-cam.com/users/shortsjMw9iN-71To?feature=shared

29% after heng problem ???

Hello. I would like to have a 3 digit display but without all the wires. Could I use something like this? Thanks.

My use-case is that if I have a device that I have bought as part of a solution and I want to try it with my own version of the software I don't want to permanently delete the software it came with. (EG, Specifically a multi relay board with built in ESP01 and I want to temporarily change the ESP SW) So I need to be able to read the flash and restore it afterward.

Thanks, that was very helpful!!!

Thanks for the explanation! It was really helpful!

EXELENTE . ESTOY SORPRENDIDO POR COMO COMENTAS TAN RAPIDO Y PRESISO.

Anyone can help on wiring,want to establish a backup VLAN using 5 ESP8266

very good circuit, i will be using too this desing, very simple and reliable

hi, are you using two 74HC595 for both controlling inputs and outputs? and is it possible to have the circuit schematic of this tutorial?

Awesome trick. Fuse went out on a Friday at the beginning of a holiday weekend so all the shops were closed for a few days. Fixed my problem for now until the new replacement part comes in.

just found this. Awesome content! I will totally be using this in an upcoming project. quick q- Why would you subtract 48 and not add in regards to the ascii table?

This is simply amazing. Thank you so much for the effort put into making this video. I mostly talk emotionally. I can see you struggled a little bit in heart for some reason. But it came out great, man. Good job! This will definitely help me in not using the nasty Arduino IDE for rendering on a display through the ATtiny13A (which I love)

Nice trick

Very good, thanks

Hi, would like to ask if cloning an ESP32 will also clone it's MAC address ? For example, if you clone three pcs. ESP32, will all three have same MAC address ? Would like to know a good encryption technique using easy to use flashing software . Thanks

Thanks for this, been doing long way