Arduino Projects
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Celebrate good grades with this Arduino-powered robot
For some students, getting decent grades or even finding the motivation to attempt to do schoolwork is a challenge, and this is often met with incentives such as money, praise, or simply avoiding embarrassment. Adam Soileau of element14 Presents had the idea to build a robot, which is an incentive unto itself by playing music, launching confetti, and waving one of those inflatable car dealership arm-waving tube things when grades cross a predetermined threshold.
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OpnBeat is a DIY lo-fi sampler that anyone can learn to use
OpnBeat was designed by Hiro Akihabara to be as simple as possible to use. It is therefore fairly limited in capability. But OpnBeat still provides enough functionality to be useful and fun. It is a bit like an advanced Talkboy (the fictional Home Alone 2 device that became a real toy), because it lets users record short clips and then play them back. It can record and store eight different clips at any given time through a line-in jack or the built-in microphone, then can play those back when the user pushes the corresponding key. A sound edit mode lets the user cut and trim recorded clips. A metronome and “rhythm edit mode” help to make playback more musical.
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The Hello World Of GPT?
Someone wants to learn about Arduino programming. Do you suggest they blink an LED first? Or should they go straight for a 3D laser scanner with galvos, a time-of-flight sensor, and multiple networking options? Most of us need to start with the blinking light and move forward from there. So what if you want to learn about the latest wave of GPT — generative pre-trained transformer — programs? Do you start with a language model that looks at thousands of possible tokens in large contexts? Or should you start with something simple? We think you should start simple, and [Andrej Karpathy] agrees. He has a workbook that makes a tiny GPT that can predict the next bit in a sequence. It isn’t any more practical than a blinking LED, but it is a manageable place to start.