Nice and clear!

awesome experiment👍🔥

I save all my old phones still use them as media players As well as a screen and battery for OTG raspberry pie use

I needed this when I was building an arduino gauge for my motorcycle. I wanted to Bluetooth data to my phone and tried to write an iPhone app to display it, but I couldn’t figure out how to make them talk once connected.

ขอบคุณมากครับ

Pretty damn smart. well done and well explained too. Bookmarked +1

Can I use old phone into Instrument cluster for my electric bike with my actual digital and analog pins...

First cat filmed by a mouse sensor 🤣 But seriously, with the interpolation, the pictures actually look better than a capture cartridge I had for my Atari ST. I think its resolution was 64x48, but without interpolation or any sort of scaling (on a 320x200 screen), it was hard to recognize anything. It probably didn't help that the screen could only display 16 shades of grey.

I'm American, how can i buy it?

I like the "easy" button. :)

Make things beyond the routine applications and there are many many more ways to use 555. I made a phase sequence indication for three phase supply and its ok. may be making a true sine wave inverter using pwm function is a good idea.

Awesome! I'm looking forward to see your next video!

Ayyy!! Thanks brotha. Thats awwsome.

thank you!

You never cease to amaze me !!

Excelente! Parabéns! Very good!

Wow. good video!

I'm thinking about how to use old smartphone for ml algorithm instead of rapberry pi and send the processed data or desicions to any microcontroller, if you know how to make it possible please let me know

It was a very useful video, I will design and print this PCB as soon as possible. By the way, greetings from Turkey.

You can do more with a 555 ic than Carter has liver pills to sell.

This is awesome! And thanks for the GitHub repo for the project!!

Too many advertisements early in the video

They make USB hubs for your phone for power and a USB.

The speaker is very hard to understand.

Do I need to put the leds on

12:45 but why?

Absolutely brilliant work. Now everyone understands why the Nipkow camera was never built in practice. In the 1930s, the way it was handled was that the scene was shot on classic film. This film (still wet) was passed through a one-hole reel (in practice 2 or 4 holes were used). The holes only performed line decomposition (the holes did not form a worm). Slide decomposition was achieved by moving the film. In this way, excellent picture quality was achieved, which could be watched on Nipkow television. This principle of scanning existed in the days of cathode ray tubes before the advent of Ampex, etc. - a high contrast screen with a single line scanning film that scrolled...

Ahaha! Just what I needed. I've been trying to use my old phones for years, but honestly, I can't cope with complexity. The instructions here make Android Studio look easy even for me, and Arduino-like programming is right around my level. :) I have a whole collection of old phones from a gorgeous red S3 with a dead battery to an A40 with a broken screen, and several in-between with no faults besides obsolescence. Now I just need to remember all my old ideas or find new ones. :) Two dev tools which didn't work out for me were Gforth and BBC BASIC for SDL. Both of these are solid dev apps, 64-bit and supporting most or all Android features, but neither are really my language. BASIC isn't my favourite language at the best of times. BBC BASIC is "noisy" with type suffixes for variables and a PROC or FN prefix required for all calls to user-defined procedures or functions, respectively. Forth I got into in part because of promises of faster coding, but I'm a really slow Forth coder! Still, I'm improving all the time, and if I learn how to develop apps and interface external hardware with Android Studio and Android_UsbIO, I might be able to translate that knowledge to Gforth. Or there's a different language entirely which I _might_ be able to port. Its compiler is very simple for a compiler.

Is it possible to purchase the undervoltage protection board or file? I have an immediate use for one and your circuit would make my job easier.

Your voltage control looks like a solar charge controller of another designer I built around a 555. Thank you for the presentation. I Never knew most of this.

Awesome brother, thank you for the great info. Why do you have Koala and I have Ladybug? I didnt see the option to choose.

I love this / As a Electrical Engineer that has not built anything in years, I thinking I need to buy some tools and start playing around again. Thank you for this motivation.

Would it beWould it be possible for the smartphone to communicate with ESP32 via USB? reading and sending signals?

How could I input signals into a microcontroller, whether digital or analog, and make the smartphone be able to read these signals? I could use an Arduino Leonardo or some chip like Pic18F2550

you could connect a microcontroller to the ftdi output, and get more pins, or maybe use some chip like tpic6b595

putty cat!

Is it possible to use a usb pd hub instead of soldering? Also possibly allowing use for video output and gives you battery protection too

Very Good thanks

there are also a radio receiver circuit out there (and a number of transmitter circuits), even a regenerative receiver that can listen to CW (morse cide) anc Shortwave AM, sadly my link to the regenerative receiver is dead.

A rasberry pi can be better than a smartphone even if both have the same amount of RAM because other factors significantly affect performance and capability. Here's why: 1. **Processor Power**: PCs usually have more powerful processors (CPUs) and graphics processors (GPUs) than smartphones, enabling them to handle demanding tasks like gaming, video editing, or multitasking more efficiently. 2. **Operating System**: PCs typically run desktop-class operating systems (like Windows, Linux, or macOS) that support more complex applications and workflows than mobile operating systems (like Android or iOS). 3. **Storage Speed and Capacity**: PCs often come with larger and faster storage options (SSD or HDD), which can improve overall performance, especially for data-intensive tasks. 4. **Expandability**: PCs allow upgrades, such as adding more RAM, better storage, or faster GPUs, which is not possible with most smartphones. 5. **Peripheral Support**: PCs support a wide range of peripherals, such as external monitors, keyboards, mice, and specialized devices, improving productivity and versatility. 6. **Cooling and Sustained Performance**: PCs have better cooling systems, enabling them to maintain high performance for extended periods without throttling, unlike smartphones that may overheat and slow down. 7. **Screen Size and Input**: PCs have larger screens and support more precise input methods (keyboards, mice, stylus), making them better for productivity and creativity. If you only use a device for basic tasks (e.g., web browsing or messaging), a smartphone might suffice. But for tasks requiring more power and versatility, a PC is generally far superior, regardless of having the same RAM amount.

Instead of the board used, will I be able to use a TTL-232R-3v3 cable?

Very clever. Makes use of the comparator/voltage divider components.

Everytime i hear german instead of indian accent on electronics videos i know it will be good 😫

I used a 555 in college to transmit audio via laser beam using the analog-to-PWM circuit similar to what was shown in the video. This was in 1977, before it was a "thing" to send music or voice over light-beam links like fiber optic cable. I could have been a thousandaire if I invented something back then!

Is there info somewhere how you can control the side with midi data?