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.
I’ve had a Patreon on account for some time but never mentioned or promoted it until quite recently. Now that I’ve been established for coming up to 2 years this May (or was it April, I forget) people can see I’m in this for the long haul. I really enjoy […]
This latest version adds the ability to speed up or slow down the playback speed of a WAV file, either by setting the speed before playing or actually changing the speed on the fly whilst it’s playing! A supporting video is available below and the new library is available on […]
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!
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