The Lego Mindstorms EV3 isn't just a robot. It's a complete kit for building customized robots and is the third generation of bot kits in the Mindstorms line, which has been around since the late 1990s. The EV3 kit can be used to build TRACK3R (a tractor with propeller blades), R3PTAR (a slithering, mechanical snake), SPIK3R (a six-legged scorpion), EV3RSTORM (a walking android) and GRIPP3R (a stair-climbing forklift). And those are just the bots you can make from the instructions in the box. There are hundreds of other instruction manuals and videos on the Internet to show you how to turn the EV3 into just about anything imaginable and quite a few things that aren't, except in the creative minds of fanatic Lego builders around the world. (There's a video on YouTube showing an EV3 playing a guitar, though it doesn't include instructions for building an Eric Clapton-bot of your own.) If anybody ever actually builds a Terminator 1000 to save the world from Skynet, they'll probably use a Lego Mindstorms kit to do it.
When you open the box, you'll find the EV3's Core Parts: 601 neatly bagged pieces including sensors and servomotors as well as the EV3 Brick, which contains the bot's "brains" -- a powerful ARM9 microprocessor. The brick gives the EV3 both Internet connectivity via WiFi and a USB reader, so you can program him from a smartphone/tablet app with the help of a wide assortment of drag-and-drop instructions. These can teach the user to create complex computer code or give them the opportunity to show off the programming skills they already have. In fact, the EV3's programming language is as sophisticated as any language used by professional programmers, though users without any coding skills can download programs written by fellow users or start out by training the EV3 to do simple tricks, like walking, talking and chasing after cats using its infrared sensor.
If the EV3 sounds like too overwhelming a project for the younger members of your brood, you can either have mom or dad pitch in (assuming they have programming skills of their own) or start instead with the simpler but still programmable Arcbotics Sparki or the Ozobot Evo.
Bluetooth works relatively easily. I had troubles at first but now it works fine.
It has small number of servos and sensors included, means the projects will either be limited or require additional investment.
It is such a fun set to have and the instruction are very easy to understand.
It has lots of different programming modes and abilities. Super cool for kids who are interested in robotics.
I made a few robot and overall, I'm happy with the product.
This product is fun to build and it's very educational.