Internet of LEGO

Computers + Electronics + LEGO

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Train Schedule – OLED Display

When and where is the next train going?! The IoL City citizens have things to do and places to be! Goal Pull in Transport For London API data to get schedule information for a local train stop Display next trains… Continue Reading →

Train Track Switch – Servos, LEDs, PubNub and Johnny-five.io

LEGO Train Track Switch The 8:45 express train is coming and we need somebody to switch the tracks quickly! If only we had a way of doing this remotely. Goal: – Remotely switch the train track and use lights to indicate the… Continue Reading →

Weather Station – DHT11, MQTT, Node-RED, Google Chart, Oh My!

  Is it hot in here or is it just me? The IoL citizens need to know the weather, so let’s build a weather station! In this article, I am going to cover several technologies that are common to the Internet… Continue Reading →

WiFi Hotspot – Cisco Meraki ExCap & NodeJS

The IoL citizens love to stay connected, but the cellular network is not delivering the coverage they need and data plans are expensive for the tourists. The local cafe, bed & breakfast has a solution, a WiFi hotspot! By using… Continue Reading →

Connecting it All Together – PubNub and Node-RED

Now that I have an automated city, its time to connect it to other systems. I need to design an architecture that easily allows me to build a dashboard, a prototype environment, and allow other sensor systems to easily communicate… Continue Reading →

Energy Saver – Motion Activation

Energy Saver Now that we have an energized city, the electricity bills are coming in. Let’s figure out a way to turn off the lights when we are not in the room. Goal: Turn off the city lights if we don’t… Continue Reading →

Lego Train Automation – IR Power Functions with NodeJS and LIRC

Lego Train Automation This is a special post because it was the main driver for building this blog! I could not find any way to control the Lego infrared power functions using NodeJs. There are libraries available for Arduino sketches and… Continue Reading →

Elevator – Web API, Motor and Ultrasonic

  Elevator The IoL City Station has two levels and needs a way to transport people between the platforms. Let’s build an elevator! The basic idea is to use a motor to lift the elevator and a sensor to figure… Continue Reading →

Train Crossing – Sensor, Servo and LEDs

Train Crossing The train is coming and we need to protect our cars from getting in the way! Let’s detect if the train is coming and block the road with a train crossing signal. Goal: – Detect train, lower crossing arm… Continue Reading →

Traffic Signal – LED Sequence

Traffic Signal My Lego City is moving now! We are going to need more than a stop sign to keep the traffic in order. Let’s build a traffic light! Goal: – Build a traffic signal that sequences through the traffic lights…. Continue Reading →

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