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The reason why Arduino chooses to use Renesas chips is because Renesas has invested in them.

If you had a sweet laser like that, why not make a thin metal stencil instead of paper?

Dark mode bro. Dark mode 🤦‍♂️

Why use of arduino r4 when you have a nano or pro mini

Everyone destroyed at least one Arduino. Fortunately, you could swap the ATMega chip and be up and running again. To do this with the Renesas RA4M1 is a bit more difficult. And all the nice ram upgrades are great, but the big reduction in pin output in mA, makes it not worth for me. I have long switch to the ESP32 eco system and see no reason to go back to Arduino...

I heard about earlier iterations of the EEPROM being very limited in its write cycles. How does it fair with R4?

Downloaded for my MacBook Pro M2 Apple Chip. Won't recognize either one of my USC-C port connections? Help?

You keep saying solder mask or solder paste instead of stencil / paste mask ;) But very multifunctional sensor. And yeah, never manage to create it flawless first try as well :D

The VREF pin on the Arduino Uno R3 is used as the reference voltage for the analog-to-digital converter So you may connect it to 2v to get the full ADC resolution over 2volt in stead of the default 5v

We made a board using the Renesas RA4M1, Added optocouplers on all 13 IOs so we can input up to 32V. Also added 13 transistors to control mosfets /relays. For the Analog pins, we added some voltage divider circuits so we can read up to 36V. The Can is very easy to use we simply added a Sn65Hvd with choke and capacitors, we manage to read machinery Canbus and activate modules. We are currently trying to add a RF module to the board as well as a Canbus display. We had to change the renesas Buck converter since it is absoulte trash and really hard to solder. We love the ra4m1.

The R4 is something that in the past, I would have bought one just to put it in a nice case to display on my shelf. The way the economy is now, I can't really justify the expense for something I probably won't use. Like others have said, I'll just use the ESP32 or a Pico W for 1/4 or less of the cost of the R4.

Everything great, exept the soldered MCU No, just no, why not put it in a socket, of course its not dip socket, but a different type of socket What people that used arduino did was they programmed their ATMega in arduino took it out, then into their own project And now u cannot do this anymore (at least not as easly)

Sounds awesome until you get to the pin current limits. That means you’ll need external transistors or mosfets to drive even moderately powered chips.

I picked up one of these only because it is almost alone in being fast + 5v level + Arduino. I am using it to interface with an ancient Casio computer, and level converters + ESP32 did not work with its non-standard I/O. Also of note is that the new chip is a whole other world from STM when you dig below the Arduino libraries.

junk

haven't looked at Arduino in a while but Jesus £25 for an Uno? 😂

Why bother esp32 much better and cheaper to.

It's called a two wire interface because it needs at least three wires. 🤣

❤

Would choose a pico or bluepill over it for now

When clickbaiting titles become so ridiculous.

I think this makes sense as a choice for Arduino purely for maintaining 5V logic compatibility while offering more processing power in a form factor that a lot of people still use. But it's still a weird choice. It's not like anyone was using Renesas MCUs in the hobby world already, so this is a pretty niche ecosystem with low compatibility for libraries. I also honestly don't understand why anyone is still using the Uno form factor. I think they should have just left it at the R3 and stopped further development on that line. The Uno is such a huge board with a bunch of empty space on the PCB, i can't imagine a situation for my projects where using one would make more sense than using a Nano or something. I'm honestly also surprised that they went with the Renesas chip when there are options like ATSAMD51 out there. There's a well developed ecosystem of boards and libraries that are already compatible with those and I'm pretty sure there are 5V tolerant SAMD chips, although i don't remember exactly off the top of my head. And of course there are other great choices like ESP32. I just feel like there were better choices available, I'd love to know why they chose the RA4M1.

Great board but the removed the crystal rendering it useless for my application of turntable control via SimpleFOC. Tried one and sadly had to send it back. Maybe future coding might make is useful. Mr R3 got .05% wow&flutter vs over 1% with the R4. Again beautiful board but not for all applications.

Too little too late. After working with Arduinos for years (including my own bareboard variants, some using the 1284 instead of the 328), I have basically stopped using them altogether. I still use the same IDE, but my boards tend to be around the ESP32-S3 now. Onboard WiFi and Bluetooth, 240 MHz, up to 32MB Flash (WROOM-2), built-in MMC (faster and bigger SD cards), etc. etc. etc. I now have a feature rich webserver and NAS in a very small package.

Why on Earth would they lower the throughput amperage?! 🤯 That simply reduces the backwards compatibility! 😠

Paper always grows and shrinks just from humidity. Try using transparency film or the plastic "paper" used in drafting when drawing with pencils. These should be much more stable.

They should have put a removable jumper on the LED pin13 circuit to remove the LED and full utilization of pin13. The reduced power on I/O pins and soldered in micro are deal breakers for me.

Just beware. The onboard RTC is not accurate, it's completely useless for my purposes.

I’m surpassed they went with that chip (and no, it’s not a complaint) given that the STM32 line could cheaply and easily do the same with more memory, higher clock speeds and at least feature parity. I have been programming STM32s, PICs, AVRs, and an assortment of MCUs since I don’t know when. So I know STM32s are excellent candidates.

I don't understand why people still buy Arduino boards. They're huge, expensive, have all the limitations covered in this video including being incredibly underpowered, and for ages had this terrible big barrel plug that you still carried around even if you didn't live in the 90's. I don't know why anyone would buy one instead of an ESP32, or an ATmega board if they really needed low-power.

Thank you

So they made it better and way worse all at the same time. Not being able to run 20 mA seems stupid.

I got Raspis too but when I want to do something I try to make it work with an arduino

They had all this a decade ago with the SAMD21-based "Zero" products eg MKRZERO. I've been making Arduinos into HID devices for a decade. Even made one look like an XBOX game controller over Bluetooth! Completely spoofed an Apple phone. What does this new board offer again? Yesterday's functionality on an incompletely supported board?

With these many tradeoffs, isn't it better to just use a ESP32 directly?

I "Accidentally" pressed don't recommend this channel.

Rp2040. Why is anyone still using Arduino?

Absurd power limits

i accidentally shoved a whole car in my ass, and then edited and liked my own comment.

Nice - this means some OS-less projects I do on Pi can probably be done on UNO R4. Buying one now.

Sorry, but while the Arduino brand innovated at the start, they have progresively been overtaken by other manufacturers. ESP8266, ESP32, RP2040 to name but a few. This just seems like the old Apple Marketing - "look at our flashy new flagship product, it's more expensive, it has third generation components and runs at a fraction of Android competitors, but it's still better, becaue we say so." The Teensy 4.0 runs at a whopping 600mhz and it's bigger brother Teensy 4.1 has tons more pins / peripherals onboard. Wake up Arduino - you are well behind in the tech race!!

Download the source code for free: www.playduino.com/index.php?site=request-file&file=signup

"the Arduino can talk to your car, just don't let it drive" 😂

hi, i saw you used a book at the beginning. do you have any recommendations, i am English speaking, and i would find a book to search stuff like that very useful. thank you!

There is something not right about using something so powerful just for the wifi and having a much weaker processor as the main processor. I doubt the ESP32S3 is even close to using its full potential as just a wifi and bluetooth chip. If they had used it as the main processor then they would have had a more powerful MCU, could have had much more flash and RAM and potentially the wifi and bluetooth performance could be better. Even if they locked off one of the cores just for wifi and bluetooth it would still be more powerful. ESP32 is supported in the arduino IDE anyway. Likely it is just to keep it similar to the minima version but why go for such a powerful wifi chip then when there are cheaper and less powerful options? It is like when someone makes an SBC that is very powerful but then all the GPIO goes through an atmega328p, it doesnt make sense, especially when they market them for robotics. There are much better and just as cheap MCUs that could be used with more processing power and much better peripherals like faster SPI, CAN and hardware timers. The argument that arduino is easy to use just doesnt work as with these boards you need to write your own code for the main processor and arduino to interface them anyway and many other MCUs can be supported by arduino now.

Great explanation, really helpful. New subscriber ❤

Great explanation, really helpful. New subscriber ❤

when i did it the error give me this i follow it all but have error 16:20:16.139 -> !Warning: Clearing Byte: 49 16:20:16.139 -> !Warning: Clearing Byte: 0 16:20:16.169 -> !Warning: Clearing Byte: 0 16:20:16.205 -> !Warning: Clearing Byte: 226 16:20:16.238 -> !Warning: Clearing Byte: 0 16:20:16.266 -> !Warning: Clearing Byte: 6 16:20:16.298 -> !Warning: Clearing Byte: 38 16:20:16.330 -> CO2 (ppm): 0

So it can't even drive an LED on a digital pin without pwm? That's a huge bummer!

good stuff