This is the Seeed Studio XIAO ESP32C3. It’s a microcontroller thas Seeed Studio send me to test it. This is how i made a Train Controller with Seeed Studio XIAO ESP32C3.
One aspect of Lego is that you need some space to play. At some point I had used an Ikea Lack with a 48×48 Lego baseplate for my son play. But quickly ran out of space and were constantly falling to the ground. So I decided to create a larger Lago Play Table with the future possibility of having storage.
One project that i’ve presented on an electronic and computer’s workshop that happened in Castelo Branco, Portugal (II Workshop de Electrónica e Informática) consisted on a robot build with LEGO® and controlled with a LEGO® NXT kit (borrowed by the School of Engineering of the Castelo Branco Polytechnic Institute) that explores the space around it without touching anything. For that i used an ultrasound sensor (LEGO® 9846) and two touch sensors (LEGO® 9843).
On june 10 i attended a workshop about electronics and computer (http://ei.aicb.pt) with a project bases on LEGO Power Functions and Arduino.
The project involves a LEGO Train that was controller by an Arduino. The goals were:


