Here at SparkFun, we refuse to leave 'good enough' alone. That's why we're adding to our line-up of Arduino-compatible microcontrollers once more! The SparkFun Qwiic Pro Micro is a revision of the original Pro Micro and is, overall, functionally the same as the previous version. The board is the same size as the original Pro Micro but we added a few additional features by shrinking down some components on the board such as a reset button, Qwiic connector, USB-C, and castellated pads (this makes it really handy for you custom keyboard creators out there)! Think the Pro Mini except with an ATmega32U4 on board and full USB functionality.
This tiny little board does all of the neat-o Arduino tricks that you're familiar with: nine channels of 10-bit ADC, five PWM pins, 12 DIOs as well as hardware serial connections Rx and Tx. Running at 5V and 16MHz, this board will remind you a lot of your other favorite Arduino-compatible boards but this little guy can go just about anywhere. There is a voltage regulator on board so it can accept voltage up to 6VDC. If you're supplying unregulated power to the board, be sure to connect to the "RAW" pin on not VCC.
The benefit of the reset button is to quickly reset the board or place it into bootloader mode without the need to take out a piece of jumper wire. The USB micro-b connector has been replaced with the USB type C connector. The through-hole pads have castellated edges for each pin to add a lower profile in your projects should you decide to build it into another assembly during production. Finally, a Qwiic connector is populated on the bottom of the board to easily add Qwiic enabled I2C devices to your projects!
Not sure which Arduino or Arduino-compatible board is right for you? Check out our Arduino Comparison Guide!
The SparkFun Qwiic Connect System is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.
This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.
Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.
Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
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If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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Based on 4 ratings:
I purchased this board as my first Qwiic compatible board, and I am very pleased with it. I had some issues soldering the headers, and wish that there was a version with pre-attached headers. The board is responsive, and the Sparkfun Board tool worked well. Thanks Sparkfun!
Easy to use, and worked flawlessly out of the box. Used it to create my own keyboard type of interface, and it connects to any computer easily and works as a HID. Would recommend 100%
This is pretty much everything I could ask for: USB-C, Qwiic, onboard reset button, and the 32U4 processor is a capable little chip with handy USB capabilities. The only thing is that at $20, it’s over 8 times as much as cheap Arduino Nano/Mini/Micro clones that I’m sure everyone is familiar with. I realize that it is a higher quality board designed and built by Sparkfun, but it really seems like $10-12 would be a lot more reasonable. If you compare it to the new RP2040 based board that is very similar to this one (DEV-17717) yet priced at $9.95, you’ll see what I mean. The RP2040 chip is MUCH more powerful than the ATmega32U4 and it appears to have more components on the board with it as well, such as external flash.
The documentation on this, and the USB-C functionality is fantastic.
I'm giving this a 4 star review because one of the solder pads came off during assembly (thankfully I could use the other side).
Overall I would highly recommend this, and I am looking forward to using these more in the future 🙂