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HiLetgo 3pcs Pro Micro Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible to Arduino Pro Micro Serial Connection with Pin Header

4.4 4.4 out of 5 stars 420 ratings

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Brand HiLetgo
Connectivity Technology USB
Wireless Communication Standard 802.11b
Processor Count 3
Product Dimensions 2.76"L x 1.97"W x 0.59"H

About this item

  • ATmega32U4 running at 5V/16MHz
  • Supported by Arduino IDE v1.0.1
  • On-Board Micro-USB connector for programming
  • 4 x 10-bit ADC pins, 12 x Digital I/Os
  • Rx and Tx Hardware Serial Connections
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HiLetgo 3pcs Pro Micro Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible to Arduino Pro Micro Serial Connection with Pin Header
HiLetgo 3pcs Pro Micro Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible to Arduino Pro Micro Serial Connection with Pin Header
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Price$22.49$9.99-6% $16.99
Typical:$17.99
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Get it as soon as Monday, Apr 1
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Get it as soon as Monday, Apr 1
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Get it as soon as Tuesday, Apr 2
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Customer Ratings
Value for money
3.8
4.7
4.0
4.1
Easy to use
3.7
4.5
3.8
3.2
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HiLetgo
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HiLetgo
hardware interface
usb
usb
usb
connectivity tech
USB
USB
USB
USB
USB
wireless standard
802 11 B
802 11 B
bluetooth
802 11 B
bluetooth
core count
3
1
1

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Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
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HiLetgo 3pcs Pro Micro Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible to Arduino Pro Micro Serial Connection with Pin Header


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Product Description

Description:
1. The Pro Micro is similar to the Pro mini except with a ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on board and do away with bulky external USB interface.
2. This tiny little board does all of the neat-o Arduino tricks that you're familiar with: 4 channels of 10-bit ADC, 5 PWM pins, 12 DIOs as well as hardware serial connections Rx and Tx. Running at 16MHz and 5V, this board will remind you a lot of your other favorite Arduino-compatible boards but this little guy can go just about anywhere. If you're supplying unregulated power to the board, be sure to connect to the "RAW" pin on not VCC.
Features:
ATmega32U4 running at 5V/16MHz
Supported by Arduino IDE v1.0.1
On-Board Micro-USB connector for programming
4 x 10-bit ADC pins, 12 x Digital I/Os
Rx and Tx Hardware Serial Connections
Note: 1.When you open the Arduino IDE software, pls go to the tool and choose the board "Arduino Leonardo"
2.The acceptable voltage range is 5 to 9 V.
Package included:
3* Pro Micro ATmega32U4 5V/16MHz Development Board

Customer reviews

4.4 out of 5 stars
4.4 out of 5
420 global ratings

Customers say

Customers like the compactness of the board, saying it has the correct dimensions and can fit almost anywhere. They are also happy with quality, value, and ease of use. However, some customers have reported issues with the fragile USB connector and compatibility, saying their PC just won't recognize the board. Opinions are mixed on performance and booting.

AI-generated from the text of customer reviews

22 customers mention16 positive6 negative

Customers like the quality of the single board computer. They mention that it works great with Arduino IDE, the build quality appears good, and the reliability is good. Some say that the boards are cheap, but if they break 50% of them they are not sure if will buy again. Overall, most are happy with their purchase and recommend it to others.

"...haven't tested the anti-static bags but they feel high quality, no suspicions here)I just love these little boards!..." Read more

"...They are cheap but if i brake 50% of them not sure if i will buy again." Read more

"...Driver installation automatic, then uploader fails with a bunch of incomprehensible error messages, then "device malfunctioned", then "Windows..." Read more

"...Build quality appears good, and reliability is good." Read more

19 customers mention16 positive3 negative

Customers like the value of the single board computer. For example, they mention it's cheap and affordable for multiple Arduino projects. Some say it has good quality for the price.

"...Anyway it's a great board at a great value, I plan to pick some more of these soon." Read more

"...Bought 6 because I knew this would happen, but the price is pretty right." Read more

"good set really for the price. just had one malfunction after the code was placed. then it would no longer read port...." Read more

"...Don't get any in the port. These are what they are. Overall a good value." Read more

7 customers mention7 positive0 negative

Customers appreciate the compactness of the single board computer. They mention that it is simple, small, and easy to use. They also appreciate the correct dimensions and the ability to fit it almost anywhere.

"...These leonardo pro micro’s worked perfectly.Pros:- very small- enough analog/digital/pwm for my project-..." Read more

"...Nice tiny form factor, you really can fit them almost anywhere." Read more

"I like it. It’s compact and nice. The outputs are different than the Nano on the board. Just looked up the item on google tho." Read more

"Works fine, has correct dimensions and came quickly." Read more

6 customers mention6 positive0 negative

Customers find the single board computer easy to program, use, and integrate with the Arduino IDE. They say it loads several different codes with ease, and has seamless integration with the IDE without issues. Customers also appreciate the documentation out there and the variety of libraries that let them skip ahead.

"...spacing compatible with the pins soldered on, allowing for super easy prototyping, my go to for simple sketches on a small breadboard...." Read more

"...Dead simple, lots of documentation out there, and plenty of libraries which let you skip much of the grunt work when making something...." Read more

"...It was easy to program. Within only a few hours of powering it up, I was able to write a program that send mouse movements, click, and keypresses...." Read more

"Easy use, plugged it in to my pc an opened up arduino ide and I didnt have to install a driver. Loaded several different codes with ease." Read more

39 customers mention23 positive16 negative

Customers are mixed about the performance of the single board computer. Some mention that it works great when hooked up to the computer, while others say that it stopped working after a day of use. They also report error messages and say that the device malfunctioned.

"Works with Arduino IDE out of the box. I can't seem to get arduino-cli to program it...." Read more

"...One is still functioning but the other two died after minimal use...." Read more

"Can't speak about long term reliability, but at least seem to work fine. They are identified by the IDE as Arduino Leonardo." Read more

"...No issues and fast shipment, I'm happy...." Read more

7 customers mention4 positive3 negative

Customers are mixed about the booting of the single board computer. Some mention that they're very responsive, and have no issues when initially flashing them. However, others say that the TX and RX LEDs never light up, and all three boards will not flash.

"...However, in spite of the user error, the device booted well when I had a proper cable attached...." Read more

"...All three were DOA. I never totally figured out why but all three boards will not flash and do not respond to reset...." Read more

"I used this for a couple mechanical keyboard projects. Flashed QMK just fine on all 3 units...." Read more

"I bought 6 of these and every one was dead on arrival. Red light constantly on and is not recognized in device manager or when using mode in CMD...." Read more

14 customers mention0 positive14 negative

Customers are dissatisfied with the connector on the single board computer. They mention that it's fragile, poorly soldered, and breaks easily. Some say that the USB disconnects and the jack tears straight off the face of the board under normal load.

"...later, I got an error message on my PC telling me that the device's USB had failed...." Read more

"......" Read more

"Very fragile usb port. Worked well with simhub but broke the port the first time i plugged it in...." Read more

"Two of the three Pro Micro's suffered from the micro usb connector breaking away from the circuit board while plugging/unplugging usb cable...." Read more

7 customers mention0 positive7 negative

Customers are dissatisfied with the compatibility of the single board computer. They mention that the PC just will not recognize them, the IDE doesn't recognize them and Windows 10 doesn''t either. They also say that the board is powered but the PC couldn''' t recognize or program it.

"...The PC didn't recognize the device no matter what I did like unplug and plug it back in... it would make the USB connect and disconnect sounds, then..." Read more

"...to my PC through a USB cable powered the board but the PC could not recognize or program it...." Read more

"Tried everything I could. Drivers, reset jumped, ect. PC just will nor recognize these." Read more

"...Red light constantly on and is not recognized in device manager or when using mode in CMD. Absolute garbage..." Read more

Definitely worth it.
5 Stars
Definitely worth it.
Let me just say these are packaged with care, which seems to be getting rare these days. (haven't tested the anti-static bags but they feel high quality, no suspicions here)I just love these little boards! I plan on using these to make custom gaming pads and a macro keyboard, super easy with the Arduino libraries. (Search for Arduino Keyboard / Mouse examples) These devices can be recognized as a keyboard, mouse, midi device, game pad (joystick/controller) and more in a few clicks just by using the Arduino libraries. I personally like these more than the ATMEGA168/328 boards.These are also breadboard/veroboard spacing compatible with the pins soldered on, allowing for super easy prototyping, my go to for simple sketches on a small breadboard.SparkFun made an awesome tutorial using these and some MX Cherry Switches to make a custom macro keypad for Eagle PCB, that's one thing I plan on doing with these. (will update with pictures if I remember :D)
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5.0 out of 5 stars Definitely worth it.
Reviewed in the United States on August 4, 2018
Let me just say these are packaged with care, which seems to be getting rare these days. (haven't tested the anti-static bags but they feel high quality, no suspicions here)

I just love these little boards! I plan on using these to make custom gaming pads and a macro keyboard, super easy with the Arduino libraries. (Search for Arduino Keyboard / Mouse examples) These devices can be recognized as a keyboard, mouse, midi device, game pad (joystick/controller) and more in a few clicks just by using the Arduino libraries. I personally like these more than the ATMEGA168/328 boards.

These are also breadboard/veroboard spacing compatible with the pins soldered on, allowing for super easy prototyping, my go to for simple sketches on a small breadboard.

SparkFun made an awesome tutorial using these and some MX Cherry Switches to make a custom macro keypad for Eagle PCB, that's one thing I plan on doing with these. (will update with pictures if I remember :D)
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3 people found this helpful
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Reviewed in the United States on January 1, 2024
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Luca Lorenzini
5.0 out of 5 stars Ottimi e funzionanti
Reviewed in Italy on May 9, 2020
Lalus
5.0 out of 5 stars Buena calidad y buen precio
Reviewed in Spain on January 8, 2020
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Lalus
5.0 out of 5 stars Buena calidad y buen precio
Reviewed in Spain on January 8, 2020
Totalmente compatibles con el original de Arduino Micro, están bien fabricados y bien embalados, cada Arduino en su sobre antiestático. Las filas de pines vienen sin soldar, tal como muestran las fotos en el anuncio, lo que es muy útil si se van a utilizar en un montaje de cableado directo, porque es mucho más fácil soldarlos que des-soldarlos, si fuese necesario.
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One person found this helpful
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Kilaketia
5.0 out of 5 stars Fonctionnels
Reviewed in France on October 18, 2019
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Kilaketia
5.0 out of 5 stars Fonctionnels
Reviewed in France on October 18, 2019
Ils fonctionnent tous avec un firmware QMK (firmware de clavier mécanique) comme tout bon Arduino pro micro, faut juste voir combient de temps les ports USB vont tenir en utilisation quotidienne.
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Duncan
5.0 out of 5 stars Great board, good value, easy to use
Reviewed in the United Kingdom on April 14, 2019
2 people found this helpful
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Tobias
5.0 out of 5 stars Super als Tastaturemulation
Reviewed in Germany on December 7, 2018
One person found this helpful
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