czardestructo

joined 3 years ago
[–] czardestructo@lemmy.world 2 points 5 days ago

I have fond childhood memories of sleeping under a sheet on a cot outside in Greece on a small island my family is from. In the last 15 years someone brought mosquitoes to the island and its insufferable because no one understands their breeding habits and always leave water troughs and tanks open for breeding. Its really rough in the winter rainy season.

[–] czardestructo@lemmy.world 12 points 6 days ago* (last edited 6 days ago) (1 children)

I'm in a rush but ive put Ethernet cards in both slots of my optiplex 3080 m.2 slots. The top right slot is vanilla and 4xpcie lanes,full speed. The bottom left is A+e keying and only 1x lane which is enough for 2.5gig Ethernet. This is ultimately what i used. For my prfesene box I added a second card, a 2 port Ethernet card to the top right m.2 slot and made it a four port beast.

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

Well I read the entire website. Extremely well done and interesting.

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

Audible noise or pollution from the engines and tire/brake dust?

[–] czardestructo@lemmy.world 6 points 1 week ago (2 children)

On the flip side i worry everyday folks, who aren't the real problem, shame themselves everyday for living just because they're self aware, when the actuall problem makers are oblivious to their own behaviors and won't change.

[–] czardestructo@lemmy.world 3 points 1 week ago (5 children)

I don't think people going on holiday are the problem. Its the power users, a small percent that just fly too much like its taking the train. I have a rich family member that has three houses around the US and they split their time between them all. Often flying 3 times a month, perpetually. Its a horrific and wasteful lifestyle.

[–] czardestructo@lemmy.world 4 points 1 week ago

I watched this without sound and knew exactly what it was.

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

Correct on the practice. Ive spent way too much time looking like a dolt under my tree trying a bean bag toss, sling shots, etc. All of the methods require a lot of technique and patience. I consider myself pretty tenacious so ive wasted 10s of hours on this project and I regretted it.

In the end I did end up using a drone, I got extremely lucky and used a fishing reel attatched to a rod I hammered into the ground. Soon as I got it over the branch it for jammed up with fishing line as I assumed and I reached down and closed the reel bell. Then I slowly lowered it down to earth.

I got lucky that the weight of the drone was enough and the fishing line didn't snag.

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

I have wasted a lot of time on this topic.

Drones are a crap shoot, the higher you get the more the weight of the fishing line drag and cross wind will mess with you. Flying through the branches then, more importantly, flying DOWN is impossible without the fishing line getting caught in the rotors. If you use a drone consider it a consumable.

Ive tried aggressive sling shots but its a ratio of the weight of what youre shooting relative to the drag of fishing line. Use too much weight then it won't fly high. Use too little and then you dont have enough to pull your line down the other side of the branch back down to earth.

Ive considered using a crossbow but lost interest.

[–] czardestructo@lemmy.world 29 points 2 weeks ago (4 children)

I am that autonomous vehicle that always heavily dampens the stop and start flow. Ive been doing this for decades, its not hard just look ahead at traffic and stop being fixated on the vehicle directly in front of you.

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submitted 2 years ago* (last edited 2 years 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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