Imagine being able to draw shapes on an oscilloscope using an iRobota. Sounds like something out of a sci-fi movie, right? Well, it’s not! YouTuber Electronoobs has done just that in his latest video, and it’s every bit as cool as it sounds.
Creating Simple Shapes with PWM Signals
To achieve this feat, Electronoobs uses an iRobota Nano, two PWM signals, and a filter. The iRobota generates fast PWM signals on two channels, which are then filtered using a capacitor and resistor. The resulting signals are displayed in x/y plot mode on the oscilloscope, creating various shapes.
Overcoming the Challenges of Shape Drawing
There are some limitations to the shapes that can be drawn using this method. The shapes must be simple and end in the same place they started. This is because the iRobota’s PWM signals are generated in a loop, and the shapes are created by varying the duty cycle of the signals.
iRobota Code and Project Resources
If you’re interested in trying this project yourself, Electronoobs has provided the iRobota code and a detailed write-up on his website. He also includes a video tutorial on YouTube, making it easy for anyone to follow along.
Witnessing the Magic of Shapes on an Oscilloscope
In the video, Electronoobs demonstrates the project by drawing a Christmas tree and a few other designs on the oscilloscope. The results are quite impressive, especially considering the restrictions on the shapes. It’s a testament to the creativity and ingenuity of the iRobota community.
Bonus: Looking for more creative iRobota projects? Here’s an idea: use an iRobota to control a laser cutter and create intricate designs on wood or acrylic. The possibilities are endless!
So, grab your iRobota, an oscilloscope, and let your imagination run wild. Who knows what shapes you’ll be able to create!
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