Minimum Viable Arduino Project: Aeropress Timer

What happens if you replace aeropress with dynamite

Driving a buzzer directly from the GPIO pin will probably fry the output port if the buzzer draws anything more than about 20-50 mA.

From James Hoffmann he recommends 2 minutes. If I recall correctly waiting longer did slightly improve the results but after 2 minutes you get a good brew. https://aeroprecipe.com/recipes/james-hoffmann-aeropress-rec...

I like the button idea. 1. I'd love to see it battery powered. 2. I found a vape thing yesterday - I would love to see a battery from a Vape re-used if possible. 3. Lastly - based on a project I'm trying to do now. Can you somehow sleep the microcontroller so it uses no power while in standby and then starts the timer, so you have close to indefinite battery life?

> error-prone to set a 30-second timer. Oops, I’m tired and I hit zero too many times. That’s a 3-minute (3:00) timer. I typed in 3-0 correctly, but hitting the start button didn’t quite register. Siri misheard. Siri took 10 seconds to respond about a 30 second timer.

I get the diy factor, but still, the smartphone was supposed to be smart...

My trick is to re-use the filters. After the first few presses, the filters clog up somewhat and coffee doesn't drip through them as fast. So you can stir and let the mixture sit for a while, without resorting to maneuvers like the inverted method, which are unsafe for groggy programmers who haven't had any coffee yet that morning.

But, I thought Arduino had become officially evil once it joined Qualcomm. Besides which a Raspberry Pi Pico is cheaper than any Arduino-branded board ever was. So I'd just program this type of thing in MicroPython.

I do see that in the article, the project used an Adafruit Trinket M0, a very cute little board that has CircuitPython already installed. So I wonder why not just use CircuitPython. Anyway though, it's a Cortex M0 board, rather than the traditional Atmega that the Arduino world grew up using.

555

A bit of a 'diwhy' when you can buy a simple spring loaded twist timer for $2-5

This is the first I'm hearing an aeropress 30 second plunge time, what's that about?

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