Features & Benefits
- Smallest Arduino Compatible Board
- On-Board micro-USB connector for programming
- Rx and Tx Hardware Serial Connections
- ATMega 32U4 running at 3.3V/8MHz
- 4 x 10-bit ADC pins
- 12 x Digital I/Os (5 are PWM capable)
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- SparkFun Pro Micro - 3.3V/8MHz
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Item #:
23672597
SparkFun Pro Micro - 3.3V/8MHz
87% of respondents would recommend this to a friend
Item #:
23672597
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Sparkfun's smallest Arduino Compatible Board yet! On-Board micro-USB connector for programming. Rx and Tx Hardware Serial Connections.
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What Stands Out
Compact Design
The SparkFun Pro Micro is designed for space-saving projects, making it ideal for small devices and wearable technology while maintaining high functionality.
Versatile Voltage
Operating at 3.3V, this board is perfect for low-power applications, ensuring compatibility with various sensors and components in electronics projects.
Easy Programming
With its USB interface, programming the SparkFun Pro Micro becomes straightforward, suitable for beginners and experienced users who need quick prototyping solutions.
Product Details
| Connectivity Technology | USB |
| Processor Count | 1 |
| Total Usb Ports | 1 |
| Brand | SparkFun |
| UPC | 717520028055 |
| Manufacturer | Sparkfun |
| Model Number | LYSB01B26IJAS-ELECTRNCS |
| Mfr Part Number | LYSB01B26IJAS-CMPTRACCS |
| Total USB Ports | 1 |
| Item Weight | 0.02 lbs (10 grams) |
Who Should Buy?
-
Microcontroller Hobbyists
Ideal for users experimenting with small-scale electronics projects and microcontroller programming.
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Arduino Users
Perfect for Arduino enthusiasts looking to create compact projects with Arduino programming style.
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Wearable Tech Developers
Great for developers creating wearable technology, thanks to its small form factor and low power consumption.
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High-Performance Projects
Not suitable for demanding applications requiring higher clock speeds or more processing power.
Product Description
SparkFun Pro Micro - 3.3V/8MHz
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Customer Questions & Answers
-
Question:
What is the maximum voltage that the board can accept?
Answer: The board can accept voltage up to 12VDC. -
Question:
What is the supported Arduino IDE version?
Answer: The board is supported under Arduino IDE v1.0.1. -
Question:
Is the board compatible with common 3.3V sensors?
Answer: Yes, the lower system voltage of 3.3V has advantages, like ease of use with many common 3.3V sensors.
SparkFun Single Board Computers LYSB01B26IJAS-ELECTRNCS Editorial Review
The SparkFun Pro Micro - 3.3V8MHz is an Arduino board that operates on a 3.3 Volt power supply. It is easy to install the Arduino Pro Micro board driver for Windows 7 using the documentation available on the Sparkfun website, and the USB connection works well with the Arduino IDE version 1.8.4. However, some users have faced issues with the micro USB connector being flaky and unstable, which prevented the USB output from working. The product is cheap but needs to be handled with care, and was not shipped in an ESD shielded bag which may shorten the product life. Some users did not have a good experience with this product and had difficulty troubleshooting configuration issues. Overall, the Sparkfun Pro Micro - 3.3V8MHz is a good quality product that has received mixed reviews.
Customer Reviews & Ratings
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Pros
- Easy to install the Arduino Pro Micro board driver for Windows 7 using the documentation available on the Sparkfun website
- Cheap and good quality
Cons
- Flaky and unstable micro USB connector
Platform Trust & Buyer Confidence
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Jazz
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“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
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“The delivery was fast and the product came undamaged and authentic.”
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“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
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