When you want some movement a motor is usually the first item you’ll turn to, yet they need some caution when working with micro-controllers or indeed any controlling electronics. If you’re looking at driving stepper-motors or servo motors then see these articles (steppers, servos) . This article and supporting video will look at driving analogue motors like the ones shown below;
Lego have produced many styles of motors over the years (including clockwork ones!) but one of the most popular old style motors was the 9V Technic one, used in many builds. Many of you may still have these motors hanging about. In the video below we look at how to […]
These small cheap devices (pic below) are extremely useful in many situations where you want to know is something is close by, whether that be an object or a black/white line etc. They work by sending out an IR beam and looking for it coming back. Therefore it has to […]
In this video we will look at how to use cheap servo motors with our Lego, and use an Arduino to control it. (although the theory is applicable to any MCU). In the next article we will look at IR proximity sensors and use them both together in a Lego […]
This article shows how to use the MCP4725 DAC (Digital to Analogue Converter) on an Arduino. Arduino’s like many other MCU’s lack this useful functionality.
Video and small article on how to connect up cheap (none brand) ILI9341 TFT LCD displays to your Arduino.
Arduino full Colour “ECG” Heart rate and blood oxygen level display using just 1 sensor.
How to detect different colours with your Arduino and the cheap TCS230 or TCS3200 colour sensors. Full code and circuit.
In this project we build a type of radar system using sound, a “Sodar”. It implements the traditional “sweeping” display using an OLED display. Click to discover more!
See your pulse graphically and see the the Beats Per Minute BPM with this simple Arduino based heart beat (pulse) project. Suitable for beginners
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