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It’s that time of year again. Time for the 24 hr (26 hr) New Years Eve Show.
For those who don’t know, on New Years Eve 2020-12-31 10:00 UTC (5:00 AM EST), we will have a recording going on the HPR Mumble server for anyone to come on and say “Happy New Years” and talk about whatever they want.
We will leave the recording going until at least 2021-01-01 12:00 UTC (7:00 AM EST) and then until the conversation stops.
If you are a podcaster please spread the word by including hpr-nye-promo.ogg or hpr-nye-promo.mp3 in your show !
Hosted by Ahuka on 2020-12-04 is flagged as Clean and released under a CC-BY-SA license.
Tags: social media, alternative, Fediverse, ActivityPub, PixelFed, photo sharing.
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Series: Social Media | Comments (0)
Maybe you want to share some photos with your family and friends. You could use Instagram, but that is part of the Surveillance Capitalist media environment. Fortunately, there is a privacy-respecting federated alternative called PixelFed. This episode is an introduction to that platform.
In this episode, Chris is harassed by quite a few artificial nuisance callers, among drug lords, Irish nurses and some random Linux Inlaws Chief Financial Officer. Based on these examples, our two heroes discuss the history and current state of text-to- speech (TTS) and voice recognition. We attempted to use voice recognition software in order to produce a transcript of the show.
Hosted by Paul Quirk on 2020-12-02 is flagged as Clean and released under a CC-BY-SA license.
Tags: darktable,RAW,photo,photography,editing.
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@paul@cloud.pquirk.com
@quirk@mastodon.social1 introduction
1.1 back in Ohio using my regular voice
1.2 espeak is no worse than operat0rs audio and we all love his shows.
2 the problem
2.1 where i live the water table is high and basement flooding is a problem https://en.wikipedia.org/wiki/Great_Black_Swamp
2.2 to counteract the water table problem houses have sumps in the basement
sump closet
sump close up
2.2.1 sumps consist of a basin where outside water is collected
2.2.2 a pump, usually electric, that drains the sump
2.2.3 also a good sump system will have some type of backup pump
2.3 the 'real' problem happens when the sump pump(s) fail
2.3.1 primary pumps fail in many ways, mechanical motor failures, floats sticking electrical outage
2.3.2 secondary pumps also fail battery problems, mechanical problems
2.3.3 i wanted a notification system that would let me know that the water level in my sump was rising. i wanted it set so that if the water level hits where the secondary system kicks in i would get some ind of notification. i wanted a system that would not use python or some kind of 'home spy' system available from some friendly corporation.
3 the solution
3.1 a raspberrry pi, a simple transistor circuit, a c library that allows access to the pi's gpio's, mutt mail client, some bash scripting and a cron job
The probe is meerly 2 wires on the end of a pvc pipe. one wire is higher up on the pipe than the other when both wires are submerged, the circuit is complete. the wires are just some old stuff from a stripped out ethernet cable. you could easily cascade anumber of these circuits and provide a water level meter something like this,
, instead of running leds, you'd hook each end to a gpio pin on the pie.
In picture 2, the closeup you can see the probe its the small pvc pipe with the blue wires running along the side. I attached the end of the wires to the pipe by stripping the ends and wrapping them around a small 1/2" self tapping screw. then I screwed one in towards the bottom and on higher up. the one higer up determines when the water alarm goes off.
4 implementation
4.1 raspberry pi 3b+
4.1.1 install slackware
https://sarpi.fatdog.eu/
slackware-arm
http://arm.slackware.com/
podcast
https://shows.acast.com/slackchat
4.1.2 access to gpio's
4.1.2.1 initially sysfs, its deprecated
https://www.kernel.org/doc/Documentation/ABI/obsolete/sysfs-gpio
4.1.2.2 i was unable to get libgpio to compile
4.1.2.3 other solutions python. wiringpi, project dead
4.1.2.4 a library pigpiod
http://abyz.me.uk/rpi/pigpio/pigpiod.html
4.1.2.5 slackbuilds pigpiod
https://slackbuilds.org/
4.1.3 the circuit
4.1.3.1 a rework of a forrest mims water alarm circuit
https://en.wikipedia.org/wiki/Forrest_Mims
circuit diagram
4.1.4 mutt
https://smalldata.tech/blog/2016/09/10/gmail-with-mutt
4.1.5 email to text
https://20somethingfinance.com/how-to-send-text-messages-sms-via-email-for-free/
4.1.6 the script
#!/bin/bash
SENSOR=4
RELAY=17
INPUT=0
OUTPUT=1
ON=1
OFF=0
ADDRESS1=<your-phone-number>@vtext.com
#if its 6am send system running sanity text
if [ $(date | cut -c 12-16) == "06:00" ]; then
#check to make sure daemon is running
if [ "$(pidof pigpiod)" == "" ]; then
echo "Something is wrong, pigpiod is not running." | mutt -s "mutt message" $ADDRESS1
else
#make sure pin 4 is input, pin 17 output
if [ "$(pigs modeg $SENSOR)" = $OUTPUT ]; then
pigs modes $SENSOR R
fi
if [ "$(pigs modeg $RELAY)" = $INPUT ]; then
pigs modes $RELAY W
fi
echo "System running." | mutt -s "mutt message" $ADDRESS1
fi
fi
#if its the first wednesday of the month, run a system test
if [ $(date | cut -c 1-3) `= "Wed" ] && [ $(date | cut -c 12-16) =' "12:00" ] && [ $(date | cut -c 9-10) -lt "8" ]; then
echo "Monthly Test." | mutt -s "mutt message" $ADDRESS1
pigs w $RELAY $ON
sleep 1
if [ $(pigs r $SENSOR) = 0 ]; then
echo "Test Passed!" | mutt -s "mutt message" $ADDRESS1
else
echo "Something is wrong!" | mutt -s "mutt message" $ADDRESS1
fi
fi
#check to see if water is rising, has the reading on pin 4 been driven low?
if [ $(pigs r $SENSOR) = 0 ]; then
echo "Alert! The water is rising!" | mutt -s "mutt message" $ADDRESS1
fitesting on breadboard
strip board
final installation
5 conclusion
5.1 fun project, shows the power of linux and floss and hope it inspires you
Do geo query on overpass-turbo.eu
Find query to query villages here: https://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_API_by_Example
The box on the right is the viewport that you will get data from.
Used python to convert xml file to Postgres sql table
Run query for all < my_max_inhabitants
Run script to query and save to csv
Import csv into LibreOffice spreadsheet.
Use global search & replace to make cells with google maps url clickable.
Nice podcast of French women about buying a house in France
https://joinusinfrance.com/episode/buying-a-house-in-france-episode-239/
Hosted by Ahuka on 2020-11-27 is flagged as Clean and released under a CC-BY-SA license.
Tags: 3-D Printers, prosthetics.
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Ken Fallon asked for shows abut 3-D printers and I told him I had given mine away. So of course he asked for a show about why I had done that. This is that show.
In this show I go over history of websites and the complex nature of security in complex websites
Hosted by Paul Quirk on 2020-11-25 is flagged as Clean and released under a CC-BY-SA license.
Tags: Electrical,safety,code,electricity,electrocution.
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Please be safe!
My Dell laptop had to go away to have a new cooling fan fitted. I've got 3 other laptops to call upon, but instead I decided to conduct an experiment I've theorised about for ages. Could a Raspberry Pi 3B serve as my daily driver?
This idea goes back some way and since then, of course, the much more powerful model 4 has been released. However, there must be thousands of 3Bs out there doing nothing, so perhaps they could have a new lease of life providing basic browsing and internet capabilities to people who might otherwise not be in a position to buy a computer.
Hardware: Raspberry Pi Model 3B
OS: Raspberry Pi OS (current version as of 31st October 2020)
MicroSD: SanDisk 16GB
ADDITIONAL SOFTWARE INSTALLED
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