saradu.com
back when i was interested in hardware, i accidentally licked a powered circuit board and was shocked to find that it tasted like sour raspberries a bit similar to having a miracle berry for the first time that experience led me to work on this project, sweetbud sweetbud is a lid that you can put on a cup to make your drink taste sweet without the sugar. it was a solution i wanted for myself, an increasingly health-conscious coffee addict building the hardware was straightforward: 3d print a lid, embed a mini arduino inside, stick a silver electrode on the mouthpiece the biggest challenge was getting the taste just right for those who haven't electrocuted their tongues before, there's actually more to electricity than just a shock. various factors like waveform, wavelength, electrode metal type, etc need to be fine-tuned to properly mimic sugar's sweetness taste is also highly dependent on the taster - their diet, weight, etc. for most of sweetbud's life, i was able to taste sweetness
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