czardestructo

joined 2 years ago
[–] czardestructo@lemmy.world 3 points 1 week ago* (last edited 1 week ago)

Other elephant in the room is how healthy is the dad? A super motivated, athletic and engaged older dad is still better than an uninterested, over weight, young dad.

[–] czardestructo@lemmy.world 2 points 1 week ago

I used it many years ago, perhaps 10, and started using it again because it allows me to rename PWAs. I have four instances of Frigate running for various locations and now i can edit their name based on location.

[–] czardestructo@lemmy.world 2 points 2 weeks ago (3 children)

My 36" TV is fine, you monster.

[–] czardestructo@lemmy.world 2 points 2 weeks ago (1 children)

As an employee, I take offense...

[–] czardestructo@lemmy.world 3 points 2 weeks ago

Spoken like a true MBA. I call this trash Buzz word salad.

[–] czardestructo@lemmy.world 3 points 2 weeks ago

I noticed the last modified date on some of my mp3s recently and realized almost all of them are old enough to drink and some are nearly 30 years old :(

[–] czardestructo@lemmy.world 10 points 3 weeks ago

Most electric vehicle motors (or any motor, wind farms, cordless drills, etc), speakers, and medical MRI machines need them and lots of them. Kind of important and America has been asleep at the wheel on this topic for decades.

[–] czardestructo@lemmy.world 2 points 3 weeks ago

You can also buy 'trigger boards' and wire it uo yourself if you like. I replaced all my barrel jack devices with USB.

https://www.ebay.com/itm/205338921886

[–] czardestructo@lemmy.world 2 points 3 weeks ago (1 children)

That is not correct, you won't get a random lower voltage. You are correct that thw PD supply needs to support the voltage but PD always starts with 5V for backwards comparability then digitally its negotiates the PD voltage it wants, if it asks for 12v and its not available it with just stay at 5V. It won't spit out the closest value unless the device asks for it. Its a very strict and wonderful standard.

[–] czardestructo@lemmy.world 2 points 3 weeks ago

I have heat pumps and didn't even know this was a thing! Thank you!

[–] czardestructo@lemmy.world 2 points 3 weeks ago

It all depends on how efficient your heat pump is and how efficient your gas boiler is. Gas is not always most efficient. In my house, down to about 40F my heat pumps are more efficient in terms of monthly bill. Below 40 gas is cheaper. I have a 95% efficient tankless boiler and SEER 20 mild temp heat pumps. Your millage may vary, if you had a 80% efficient boiler heat pumps are going to be way better.

[–] czardestructo@lemmy.world 2 points 4 weeks ago

At least she even comments. Mine just waves her hand in disgust. She knows it enables her whole technological life, but couldn't give a shit.

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submitted 7 months ago* (last edited 7 months ago) by czardestructo@lemmy.world to c/whatisthisthing@lemmy.world
 
 

So I'm cleaning out a house and found a brand new Gateway2k Pentium 4 computer. Someone opened the boxes but never took the computer out, its all still in the plastic and I don't want to ruin the unboxing for someone that is into this. The computer is free to a good home in the Boston metro area to make your retro gaming dreams come true! Shoot me a message, first come, first served.

P4 Computer - Gateway 2000 model 510 - part number 2800434

17" TFT Monitor - Gateway FPD1730

Speakers - Boston Acoustics BA745

Edit: Found a taker, hopefully it goes to it's forever home on Saturday!

Edit edit: its gone!

 

Started the peppers in March and tomatoes in April. They were getting too big for my grow light so I evicted them outside. Plenty warm in the cold frame in Massachusetts.

 

So I had a verbal conversation with a coworker yesterday and now I'm getting fed very specific ads. No possible way it's accidental. I have most of the microphone access to apps limited, I have Google assistant turned off and no VPA setup in my home. I use a Oneplus 9 pro, does anyone have recommendations on how to further root cause this or just par for the course for using any standard android OS? Have other folks had similar experience after locking down their stock phones?

 

Action Video

For her birthday my daughter received a cuckoo clock. It had very limited programming for 'quiet hours' so I fiddled with it and ended up breaking it. I didn't want to disappoint her so I gutted it and proceeded to install a Pi Zero W and a headphone amplifier I had built. She now has a fully programmable, USB powered, linux based cuckoo clock where I can program it to whatever suites our needs and it syncs it's time with NTP severs. I even connected her night light to it which turns on at night and off to let her know when its time to get out of bed. This combination also allows us to have dance parties with flashing lights, a dancing bird and fun songs coming out of her cuckoo clock. It's ridiculous and eccentric but it makes us happy!

Build

  • The Pi Zero's dont come with a sound output so I built an audio output filter to convert the PWM output to an analog audio output
  • Connected the analog out to a OPA1642 based headphone amplifier I designed and built
  • Wired up the cuckoo bird's coil actuator to a simple MOSFET drive circuit to control it from the Pi's weak GPIO output
  • Wired up some 5V string lights (used to be battery powered) to a simple MOSFET driver circuit to control it from the Pi's 3.3V GPIO output
  • Wrote some bash code to make the bird dance, the light flash and the cuckoo bird sounds play
  • All the scheduling and execution of the code is done clean and simple in crontab
  • I also have a text to speech engine verbally state the hour after the cuckoo action so my daughter can better learn to tell time by herself

To re-map the audio to the PWM0 output of the Pi

add to /boot/config.txt to remap the audio to the PWM0 and PWM1 pins of the pi.

# Enable audio (loads snd_bcm2835)
dtparam=audio=on
#remaps the audio to the PWM0 and PWM1 pins (pins 18 and 13)
dtoverlay=audremap,pins_18_19

Code

Cron Scheduling

@reboot /home/pi/startup.sh

#cuckoo between 8am and 6pm, inclusive
0 8-18 * * * /home/pi/cuckoo.sh

#turn on the night light at 6:15 pm
15 18 * * * echo "1" > /sys/class/gpio/gpio26/value
#turn off the night light at 6:15 am
15 6 * * * echo "0" > /sys/class/gpio/gpio26/value

Startup Configuration for GPIO

#!/bin/bash

#setup the GPIO
#"In order to use a GPIO pin through sysfs, we first have to “export” each one to make the appropriate paths available."
echo "17" > /sys/class/gpio/export
echo "26" > /sys/class/gpio/export
#set direction
echo "out" > /sys/class/gpio/gpio17/direction #cuckoo movement
echo "out" > /sys/class/gpio/gpio26/direction #nightlight

Flashing Light Code

#!/bin/bash

i=1

while [ "$i" -le 3 ]; do
        #turning the GPIO on
        echo "1" > /sys/class/gpio/gpio26/value
        sleep 0.050
        echo "0" > /sys/class/gpio/gpio26/value
        sleep 0.050
        i=$((i + 1))
done

Cuckoo Code

#!/bin/bash
i=1
echo "Looping "$(date +%I)" times"

while [ "$i" -le "$(date +%I)" ]; do
        aplay /home/pi/cuckoo.wav &
        #flash the lights three times quickly
        /home/pi/flash.sh &
        #turn on the cuckoo bird coil to make it bob down and flaps its wings
        echo "1" > /sys/class/gpio/gpio17/value
        sleep 0.300
        #turn off the cuckoo bird coil so it sits back down
        echo "0" > /sys/class/gpio/gpio17/value
        sleep 0.700
        i=$((i + 1))
done
#Text to speech engine, speaks the current hour through the speaker
#date + sed command below returns the hour, in 12 format, and the sed command removes the leading zeros
espeak -v mb-en1 -s 120 "it is $(date +%I | sed 's/^0*//') oh clock"
 
 

Title says most of it. Spin electric scooters exited the Seattle market and abandoned their scooters all over the city and apparently they have a pi 4 in them!

 

Does anyone else have a Turbo Button™ on their router? My wifi router is in essentially attic space with no AC so it gets hot and acts up with connectivity issues. My turbo mode solves the problem.

 

"The paper, which the students wrote as part of an applied lab course, found that costs are diffused across a number of areas and involve things people don’t often consider. Beyond those for individual drivers, road maintenance, snow removal, and policing, there are less-obvious ones, such as those associated with added pollution, value of land set aside for parking lots, lost productivity from sitting in traffic, and various costs associated with injuries and deaths on the road.

Using publicly available data, the authors put the annual public tab at $35.7 billion, which amounts to about $14,000 for every household in the state. Those that do own vehicles pony up an additional $12,000 on average in direct costs."

 

Found some tiny coffee plants while in Hawaii and thought they looked amusingly fake so I grabbed a picture.

 

I call this nonsense host ‘Ghost’, for me it’s similar to a tape backup solution. Fairly simple concept, it’s an old Pi1 + external mechanical drive that sits dormant with its ethernet off. Once a month, at a random time and random date it enables the ethernet, spins up the drive and pulls data from the main server to update its drive then goes black until next month. The only way to check or maintain the pi is a push button that toggles the ethernet interface. I slapped it together with some scrap wood, spare hardware and screwed it to a 2x4 in a dark corner of my basement. It’s my 5th string backup, the ultimate insurance policy because I’m mental.

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