September 03, 2015

Create text on your oscilloscope using an Arduino

If you're looking for something different to do with your oscilloscope then some fun can be had by creating vector images and text on the display. This can be done quite easily using an Arduino with a small amount of external circuitry, and is described by Instructables user MadEncoder.

The process is simple, and involves feeding a pair of PWM (Pulse-Width Modulation) signals each through a low-pass filter then to a channel of the oscillscope, set to X-Y mode. The low-pass filters alter the PWM signals in a way that allow them to rise and fall and appear as vectors on the display - and thus creating the required image, for example:

Certainly something different, and you can start to find out more from the project's Instructable page. And for more, we're on facebookGoogle+, and twitter - so follow us for news and product updates as well.


If you need to add external hardware or devices to your next Arduino project, such as the circuit described above - you'll need a protoshield to mount the external circuitry. When doing so, consider our range of ProtoShields. From the tiny LeoStick to the Mega we have a wide range to suit your application.


Edward said:

Pretty cool idea.. Never thought this could be possible. It could be a very good project for my niece

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