Getting your STEM skills up to speed is now easier than ever with Microduino's mCookie. These Arduino-compatible electronics kits make building mini machines a snap -- literally -- with magnetic connectors and interlocking pins that match up with LEGO blocks. The mCookie family of DIY modules, sensors and accessories was Kickstarted back in 2015 and began shipping to consumers at the end of the year. Now anyone can pick up one of the various kits (Basic, Advanced or Expert) and assemble projects like a music box, voice-activated camera, paw-waving fortune cat and more. Microduino also offers additional components to expand the possibilities to keep pace with your imagination. This week, one lucky reader will win a Family Kit (including all three mCookie sets) to launch their smart-machine-making career. Just head down to the Rafflecopter widget below for up to three chances at winning.

Winner: Congratulations to Robin B. of Chico, CA!

Getting your STEM skills up to speed is now easier than ever with Microduino's mCookie. These Arduino-compatible electronics kits make building mini machines a snap -- literally -- with magnetic connectors and interlocking pins that match up with LEGO blocks. The mCookie family of DIY modules, sensors and accessories was Kickstarted back in 2015 and began shipping to consumers at the end of the year. Now anyone can pick up one of the various kits (Basic, Advanced or Expert) and assemble projects like a music box, voice-activated camera, paw-waving fortune cat and more. Microduino also offers additional components to expand the possibilities to keep pace with your imagination. This week, one lucky reader will win a Family Kit (including all three mCookie sets) to launch their smart-machine-making career. Just head down to the Rafflecopter widget below for up to three chances at winning.

Winner: Congratulations to Robin B. of Chico, CA!

Since most kids have already mastered the art of iPad password cracking and in-app purchasing, we should probably give them something productive to do. The arduino-based Vortex from DFRobot is a STEM-reinforcing plaything that can help kids learn to code. It comes with preinstalled programs, so you can have fun racing, bumping and spinning right out of the box, but the variations are endless. Open-source hardware and the WhenDo app's graphical programming interface mean the sky's the limit with Vortex. These little bots are laden with proximity and ground sensors, LEDs and speakers — not to mention all the optional add-ons — to help bring them to life. DFRobot has given us a pair of two-robot packs for a couple lucky Engadget readers this week. All you need to do is head to the Rafflecopter widget below for up to three chances at winning this hackable robot duo.

Since most kids have already mastered the art of iPad password cracking and in-app purchasing, we should probably give them something productive to do. The arduino-based Vortex from DFRobot is a STEM-reinforcing plaything that can help kids learn to code. It comes with preinstalled programs, so you can have fun racing, bumping and spinning right out of the box, but the variations are endless. Open-source hardware and the WhenDo app's graphical programming interface mean the sky's the limit with Vortex. These little bots are laden with proximity and ground sensors, LEDs and speakers — not to mention all the optional add-ons — to help bring them to life. DFRobot has given us a pair of two-robot packs for a couple lucky Engadget readers this week. All you need to do is head to the Rafflecopter widget below for up to three chances at winning this hackable robot duo.

Since most kids have already mastered the art of iPad password cracking and in-app purchasing, we should probably give them something productive to do. The arduino-based Vortex from DFRobot is a STEM-reinforcing plaything that can help kids learn to code. It comes with preinstalled programs, so you can have fun racing, bumping and spinning right out of the box, but the variations are endless. Open-source hardware and the WhenDo app's graphical programming interface mean the sky's the limit with Vortex. These little bots are laden with proximity and ground sensors, LEDs and speakers — not to mention all the add-ons — to help bring them to life. DFRobot has given us a pair of two-robot packs for a couple lucky Engadget readers this week. All you need to do is head to the Rafflecopter widget below for up to three chances at winning this hackable robot duo.