The MicroPython Lego Bot

In the quest for getting my kids interested in coding, I've decided to make them a message controlled bot car with Lego bricks and an ESP8266 board. The idea is to have an environment where we can jointly program a sequence of actions that can be sent via WiFi to the bot for execution. With this setup... Continue Reading →

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Processing and Arduino

Processing is an open-source IDE with a Java-based programming language that is aimed at lowering the learning threshold for interactive graphics creation. It can be used for teaching programming, making prototypes, creating art experiments or just generating crazy visual stuff in general. The community is very active and there are tons of useful contributed libraries. Wiring... Continue Reading →

MicroPython and ESP8266

During the past 6 months  I have grown into a big fan of the Python programming language. I have also found a new passion in tinkering with the versatile and inexpensive ESP8266 microcontroller boards. For the embedded programming I usually stick with Arduino IDE and C/C++, but as there now is a Python implementation for ESP8266 available,... Continue Reading →

Basic authentication with Python Flask

For a simple web application in a home automation scenario, basic authentication can be a sufficient solution. Setting up a REST API and a web app with Flask is very easy, and adding basic authentication requires just a few more steps that can be reused between different applications. Let's say we have a Flask application that... Continue Reading →

A web app for IoT data visualization

As described in some earlier posts, I have a setup at home with IoT devices that publish measurement messages to a Raspberry Pi via MQTT. The RPi stores the data in a database and also forwards the messages to a cloud service (Adafruit IO). In this post I have made a self-hosted data visualization web app... Continue Reading →

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