Arduino Pro Mini Identification - 5V, 3.3V, 8MHz or 16MHz

Sorting your 5V 16MHz Arduino Pro Minis from your 3.3V 8MHz

[mackocour]

If frequency vs vcc curve is linear, that means if I run my arduino on rectified mains it will have 3ghz and I can use it as a cpu instead of the Intel I have now

[alanpowell]

Put 9 volts on Raw and measure VCC. 3.3v = 8 Mhz 5v = 16 Mhz. That should work.

[jamest.]

I hope to see more of the arduino videos. I need to learn all I can. as of now I'm clueless when it comes to programming. I really enjoy your videos.

[MrBuck]

Always like your channel, I learn new stuff without realizing I`m being educated
Thanks for making it fun and painless

[SHANUSHAH]

Well done Julian, you have educated me on Pro Mini and Power regulator, good Video Mate.

[daverussell]

I was just looking for SMD codes tonight and came across this. thought it might help great video

[DHLee-lfhm]

I purchased several versions of the Arduino Promini 3.3v to create a low power Arduino piece. But outside could not distinguish whether this is 3.3v or 5v. I found information on the Internet that I can see the letters and numbers written on the generator. By watching your video, I was able to better understand the utility value of 3.3v. Thank you.

[geraldjustprojects]

There are two kinds or regulators for 3.3 and 5v. One are 150mA delivery draw. The others are 500mA. So chose wizely, but what makes the difference is that those 150mA regulators have Low quiescent current. means if you want to put arduino to sleep it will draw very little current. unlike the 500mA regulator which even if you put arduino to sleep it will draw atleast 10mA in some occasions. chose wisely depending on your application.

[muhammadhamzahrobbani]

I had a strange incident
I bought Pro Mini - ATMega328, 5v-16 Mhz version.
I just realized that the project I was working on was using a TTL 3.3v device (for example: ESP8266).
In simple terms, I had to use a level shifter to change the TTL 5v Pro Mini to 3.3v, but I didn't want to because it wasted energy, money and space.

Then I was fun, changing the power supply voltage of the VCC Pro Mini from 5v to 3.3v. And surprise! no problems at all when running the program!
The TTL on my Pro Mini automatically changes to 3.3volt, so I don't need to use a level shifter.

Conclusion: There are several Pro Mini versions of 5volt 16Mhz that are flexible, can be changed to a 3.3volt 8Mhz version simply by changing the VCC Voltage

[Friendroid]

there's yet another 328p in a board that is slightly larger, with with VCC and GND slots next to each digital and analog pin. For example, when you want to connect a potentiometer to an analog pin, the VCC and Gnd are just next to it. From a personal perspective, i really like the aesthetics of these boards, I feel like turning the soldering iron ON and put something together every time I see one.

[MYNICEEV]

9B27. Just for fun. How many 9s go into 27 and how many of the answer go into 9? Great video my good friend.

[johnbouttell]

1:52 I had to look up the term munging.
Intuitively I felt it was an electronic form of mashing.
According to Wikipedia:

Mung or munge is computer jargon for a series of potentially destructive or irrevocable changes to a piece of data or a file. It is sometimes used for vague data transformation steps that are not yet clear to the speaker. Common munging operations include removing punctuation or html tags, data parsing, filtering, and transformation.

The term was coined in 1958 in the Tech Model Railroad Club at the Massachusetts Institute of Technology. In 1960 the backronym "Mash Until No Good" was created to describe Mung, and a while after it was revised to "Mung Until No Good", making it one of the first recursive acronyms. It lived on as a recursive command in the editing language TECO.

Usages of the term appear in munged password (a strong, secure password created through character substitution), data munging (cleaning data from one "raw" form into a structured, purged one) and address munging (disguising an e-mail address).

Munging may also describe the constructive operation of tying together systems and interfaces that were not specifically designed to interoperate. Munging can also describe the processing or filtering of raw data into another form.

As the "no good" part of the acronym implies, munging often involves irrevocable destruction of data. Hence in the early text-adventure game Zork, also known as Dungeon, the user could mung an object and thereby destroy it, making it impossible to finish the game if the object was an important item.

[Travis]

Julian, why are you using pencil as a pointer? It seems too risky as you may eventually create shortcut by touching contact with carbon tip, which is conductor.

[marco-S]

At 7:00, the smd resistors are from the E96 series. The number is assigned to a standard value, the letter is representing a multiplier.

[kfishy]

If you really want to go small, consider the Digispark which is absolutely tiny. It has an ATTiny85 and I believe it does hardware I2C.

[_who_cares_]

Cant you just put 7V on the Vin Pin and measure the voltage comming out of the regulator?

[jamin]

Great video. Love watching your videos all the way from New Zealand! Chur bro

[TheDkbi]

Hi Julian,
the two versions of the Mini Pro that I have are for 5V. The regulators are marked KB50 and the resonators are AT.
Regards, Udo, dk3bi

[smadge]

I have a nice box of mixed minis and nanos, and UNOs and megas.

[PetRatty]

Those crystal oscillators look nothing like ceramic resonators, but they do the same job!