I had to buy the second motor separately). Lego WeDo 2.0 changed that with the use of BLE which allowed you to roam free (also to note here…the standard Lego WeDo 2.0 Education Kit comes with only a Smart Hub, 1 motor, 1 tilt sensor and 1 proximity sensor. In fact, the Lego WeDo (1.0 let’s say) was essentially chained to your desk by a USB cable and couldn’t live much beyond the edge of the desk or your laptop. The motor/sensor connections are completely different and not compatible at all with the Lego WeDo 2.0 set. Note: if you wonder why I specify “Lego WeDo 2.0”, it is because its predecessor the “Lego WeDo” is a different platform which is controlled via a USB connection. Google Play: Tilt To Drive App for Lego WeDo2 If you want to jump ahead to the finished app, get it from Google Play here: Check out his site for a better explanation of the story than I can give. Additionally, he did the work of creating the first MIT App Inventor App for the Lego WeDo 2.0, from which all of this project is based. He actually did the work of discovering the Lego WeDo 2.0 BLE control codes using a combination of BLE sniffing and some hands-on reverse engineering. My main inspiration came from the work of another Lego inspired blogger “Major Alvega” who did the most of the ground work here: Ofalcao.pt/blog.

So, since there was no decent app for Lego WeDo 2.0, I decided I would make one. However, I quickly found some limitations: the Lego WeDo 2.0 app from Lego was only available for tablets and not phones there also wasn’t an easy interface like a simulated joy stick as in the EV3 app…you had to make due with their limited “blocky” code they developed especially for Lego WeDo 2.0 programming (fun and easy for kids…not much for making smarter robots though). Starting off from the Lego WeDo 2.0 car project, the main purpose of this project was to construct an improved Lego WeDo 2.0 car which can be steered with an Android phone or tablet with Bluetooth Low Energy capabilities – a.k.a: BLE.

Lego wedo 2.0 android app