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?
You need to use two of them, or a 556, because you need one half for the 30 second monostable and the other half for the astable that drives the beeper.
> 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.
11 comments
[ 5.6 ms ] story [ 34.1 ms ] threadI 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?
You need to use two of them, or a 556, because you need one half for the 30 second monostable and the other half for the astable that drives the beeper.
Out of contrariness I'd use a CD4011 though.
I get the diy factor, but still, the smartphone was supposed to be smart...
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.