Turn a hot air popper popcorn machine into a high tech coffee roaster using a relay, 120V transformer, and thermocouple.
Project tutorial by Ben Eagan
Billy Bass and Alexa combine in this project to form a full bodied virtual assistant.
Build a convincing artificial fire effect for the holiday season using NeoPixel LEDs, an Arduino UNO, and a cool mist module.
Cafeino is a connected robot that makes high-end artisanal coffee mimicking the hand pouring technique of a skilled human barista.
Project in progress by user04650005
Another indoor greenhouse powered by Nano. 100% controlled environment with some extra perks that make life easier.
Project showcase by vinikon
Log humidity, automatic irrigate, switch plant growing lamp on and voice control everything with Amazon Alexa and Arduino.
Project tutorial by Walter Heger
Well this works for anything that has an audio line out, and can be hidden inside the fish. So you plug an 1/8" audio cable into a home mini, and take it apart and hide it inside the fish, you can follow all the other steps here.
That's a pretty strong accusation. As an author of a few DIY articles that have found an audience, it can be really hard to help people troubleshoot especially if they are totally new to the subject matter. I also wouldn't be surprised if the author's code drifted a bit from publishing to finalizing the prototype, and maybe api specs have changed as well.
I understand with the stress of a team project it can be frustrating if a guide isn't perfect, but the spirit of DIY is that it takes some leg work and frustration. You didn't pay for this, and the author has put some serious effort into writing up how the project was done. Even if they simply focused on the carpentry aspect, and followed another guide to get this working (which seems unlikely to me), that's still a solid addition to a popular project.
Looks like we've got a useful suggestion followed by some self promotion.
I used the onboard speaker already inside Billy Bass which nicely integrates, but I'm not super familiar with amplifiers. Would a low power amp with the same speaker make a difference?
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