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Uncle Duncan's Shack
South Africa
Registrace 21. 09. 2009
Here we talk science, electronics, physics, 3D printing, kit building, maths and educational matter.
The videos with narration have subtitles in English with those who have hearing difficulties in mind so that the audience who cannot hear are able to enjoy my content.
A gathering place for all you wire rats like me!
#electronics #diy #engineering #education #arduino #software
The videos with narration have subtitles in English with those who have hearing difficulties in mind so that the audience who cannot hear are able to enjoy my content.
A gathering place for all you wire rats like me!
#electronics #diy #engineering #education #arduino #software
Flashforge Adventurer 3 review after 4 year of ownership and 1300 hours of use, all the details.
This is a nice long video which goes in to deep detail of the machine and owning it.
I do not cover cad work or slicer usage here, it is a review of owning the machine.
What I meant to say the the video regarding dimensions, is: subtract 0.5mm for inner dimensions.
www.thingiverse.com/texasbelle/collections
I do not cover cad work or slicer usage here, it is a review of owning the machine.
What I meant to say the the video regarding dimensions, is: subtract 0.5mm for inner dimensions.
www.thingiverse.com/texasbelle/collections
zhlédnutí: 20
Video
Failed Vicks warm steam humidifier tear down and operation explained #steam #humidifier #winter
zhlédnutí 13Před 19 hodinami
This is a longer video, so get settled as we take this appliance apart and see how it used to work, as it is deceased.
Let us build an inductance meter and review operation in detail #arduino #electronics #oscilloscope
zhlédnutí 24Před 14 dny
I built an inductance meter with an Arduino Uno and we take a deep dive into the circuit operation as well as the code for the Arduino.
How I go about testing a thyristor dc drive #speedcontrol #vfd #motor #thyristor #electronics
zhlédnutí 50Před 14 dny
Join me at work as I do testing of a dc drive, you get to see the use of software and testing of the firing pulses with an oscilloscope. The repair work itself I cannot disclose, hence it is not covered here. What I am showing here is knowledge available to the public, no worries there.
Toolbox tour at work #tools #electronics #toolbox #technician
zhlédnutí 127Před 14 dny
What is in my toolbox, the essentials.
Total dissolved solids sensor from DF Robot with Arduino R4 #arduino #dfrobot #electronics
zhlédnutí 40Před 21 dnem
I hook up the probe to an Arduino and we compare how it responds to clean tap water versus water with salt in it and compare readings with a commercial conductivity probe.
Using cad as a shadowgraph to measure tool angles #shadowgraph #tools #grinding #machining
zhlédnutí 27Před 21 dnem
I demonstrate the use of cad to measure toll angles of an image of a tool. Useful for measuring a cutting or drilling tool. I used Designspark from Spaceclaim which is the 3D cad software I use for this video. The video was inspired by this video: czcams.com/video/MQH9qHZ3Ipc/video.html Please go watch Stefan Gotteswinter's channel and support him too, he does amazing machine work and shares a ...
DFRobot 24GHz mm radar #radar #dfrobot #arduino #electronics #microwave #project #presence
zhlédnutí 95Před měsícem
In this video I review this sensor which i have connected to an Arduino Uno for the signal being received. Here is the Wiki for the product: wiki.dfrobot.com/mmWave_Radar_Human_Presence_Detection_SKU_SEN0395#target_4
Geiger Müller tubes explained #xray #nuclear #geigercounter #radiation #arduino #electronics
zhlédnutí 83Před měsícem
Geiger Müller tubes explained #xray #nuclear #geigercounter #radiation #arduino #electronics
DF Robot MLX90614 I2C infra red sensor review #dfrobot #sensor #temperature #arduino
zhlédnutí 34Před měsícem
DF Robot MLX90614 I2C infra red sensor review #dfrobot #sensor #temperature #arduino
3D printing and building a vintage Indian railroad lantern in a retro theme #train #lantern
zhlédnutí 47Před 2 měsíci
3D printing and building a vintage Indian railroad lantern in a retro theme #train #lantern
Let us make a shift knob for a stick shift car with an oled display #electronics #oled #arduino
zhlédnutí 138Před 3 měsíci
Let us make a shift knob for a stick shift car with an oled display #electronics #oled #arduino
Flammable gas sensor experimentation and demonstration with an Arduino
zhlédnutí 49Před 4 měsíci
Flammable gas sensor experimentation and demonstration with an Arduino
Running a stove plate off a variable speed drive to control the temperature of the cooker.
zhlédnutí 83Před 4 měsíci
Running a stove plate off a variable speed drive to control the temperature of the cooker.
How to use the HEAT function on a VSD to keep an electric motor warm and dry during off cycle.
zhlédnutí 136Před 4 měsíci
How to use the HEAT function on a VSD to keep an electric motor warm and dry during off cycle.
Senheizer TR 840 tear down, what went wrong and can we fix it? #electronics #audio #senheizer
zhlédnutí 96Před 4 měsíci
Senheizer TR 840 tear down, what went wrong and can we fix it? #electronics #audio #senheizer
$25 Solar light tear down #electronics #solar #led #rechargeablelight #battery
zhlédnutí 441Před 5 měsíci
$25 Solar light tear down #electronics #solar #led #rechargeablelight #battery
Let us compare the fuel consumption of various vehicles #engineering #vehicles #transport
zhlédnutí 2,8KPřed 5 měsíci
Let us compare the fuel consumption of various vehicles #engineering #vehicles #transport
Chrysler Imperial LeBaron beach cruise #chrysler #classic #imperial #car
zhlédnutí 163Před 5 měsíci
Chrysler Imperial LeBaron beach cruise #chrysler #classic #imperial #car
Loadcell and wheatstone bridge theory #electronics #learning #loadcell #circuit #scale #measurement
zhlédnutí 90Před 5 měsíci
Loadcell and wheatstone bridge theory #electronics #learning #loadcell #circuit #scale #measurement
Surface mount pc board assembly demonstration #smd #pcboard #electronics #soldering #assembly
zhlédnutí 65Před 6 měsíci
Surface mount pc board assembly demonstration #smd #pcboard #electronics #soldering #assembly
Cpu liquid cooler tear down and test #cpu #cooler #gaming #computer #pump #liquid
zhlédnutí 54Před 6 měsíci
Cpu liquid cooler tear down and test #cpu #cooler #gaming #computer #pump #liquid
Arduino lightning cloud #arduino #led #clouds #lightning #neopixel #lighting #decoration
zhlédnutí 83Před 6 měsíci
Arduino lightning cloud #arduino #led #clouds #lightning #neopixel #lighting #decoration
Dettol soap dispenser signals observed on oscilloscope #dettol #automatic #oscilloscope #electronics
zhlédnutí 75Před 7 měsíci
Dettol soap dispenser signals observed on oscilloscope #dettol #automatic #oscilloscope #electronics
Volvo Penta fuel system explained and cold start
zhlédnutí 1,6KPřed 7 měsíci
Volvo Penta fuel system explained and cold start
Electronic Christmas tree with neo pixel display #christmas #tree #led #ws2812 #neopixel #arduino
zhlédnutí 2,3KPřed 7 měsíci
Electronic Christmas tree with neo pixel display #christmas #tree #led #ws2812 #neopixel #arduino
Digital tyre pressure gauge tear down #electronics #sensor
zhlédnutí 30Před 7 měsíci
Digital tyre pressure gauge tear down #electronics #sensor
Kodak Junior Brownie Camera #kodak #camera #film #vintage
zhlédnutí 32Před 8 měsíci
Kodak Junior Brownie Camera #kodak #camera #film #vintage
Could you explain please. Only water?
So just by giving them water all day, they grow up fast. Why even put them on the dirt.
My title is probably a bit confusing, no growing medium is used, so the roots are only in water. However, the water has hydroponic nutrients added to it which the plant lives and grows off. So no, one cannot grow plants in water only. They need the minerals found in dirt, as well as oxygen, carbon dioxide and nitrogen.
@@Uncle-Duncan-Shack Oh i see, thx for answering.
man i admire the organization, i would love to have tools in a box so well put- keep it up man i love it
Thanks for commenting, appreciate it, take care!
I'm astonished at what can be achieved with such a simple circuit . Thanks for sharing . capacitance meters are a dime a dozen , but inductance meters appear to be rare and expensive
Yes, multimeters will do capacitance, but for inductance it seems to be a dedicated instrument. I measured some small inductors, a 40uH and a 220 uH and those measured correctly. Seems to be ok with small values. Those inductors are on a board with a few buck regulators on, surface mount inductors.
❤❤❤
Nice !!!
Thanks for watching, glad you enjoyed it!
You helped a lot! I have the same issue same chip blown. Can you give the link to the compunent?
Here is the circuit diagram: electronicshelponline.blogspot.com/2017/06/philips-hts3510e94-dvd-home-theater.html Here is the Onsemi link: www.onsemi.com/products/power-management/ac-dc-power-conversion/offline-regulators/FSCQ1265RT I bought it from RS Components, there are a few vendors I see that still sell it, as it is an old chip.
You are the first person I've seen that did it properly. Everyone else only gets to a dull red. If you want the best possible outcome, use a wire wheel to clean the oxides from the screws, put a bearing ball between them, get them nice and red, sprinkle on some borax, continue welding, and wait until the steel begins to melt. Just basic forge welding techiniques. Good job man! Have a great day.
Nice, thanks for the advice and awesome comment!
@@Uncle-Duncan-Shack Anytime man!
Radio active bananas 😊😊😊
It actually looks like a cool desk lamp! 😃
Thanks, yes that is what it has become 🙂
... funky rose.🙏👍😄
Nice video
Thank you, appreciate you watching and commenting.
Hi Duncan I wonder if you can help me. I have an outdoor weather station with an inbuilt temp/humidity sensor that went off line a while ago. Other parts of the weather report ok to the console like wind speed and direction etc. The original temp/humid sensor looked like it had corrosion on it so attempted replacement. The sensor pcb had part number EW105DV1. I replaced it with an AHT10 temp/humid sensor. Both have connections for Vin, GND, SCL, SDA which I think I connected right, but still getting temp and humidity from my outdoor weather station as off line. Other units are ok. Any ideas? Are these sensors compatible? Thanks mate.
Hi Rob There is certainly going to be an issue with the IIC addressing and registers being different between the two sensors. My guess it that the station is going to need the original sensor installed to get it working again. Best regards, Duncan
@@Uncle-Duncan-Shack Thanks for the quick reply mate. I only changed it because the original went off line, and on inspection looked corroded. When you say original sensor, do you mean one exactly the same?
@@robt6695 Hi Rob, Yeah, that's correct.
hey can you please provide me link of this cell .
Here are quite a few options www.amazon.com/rechargeable-aa-batteries-usb/s?k=rechargeable+aa+batteries+usb
Cool
Does it come filled with gas
Nope, be sure to have a can on hand to fill it with.
Thank you for the tip. 👍
👍🙏🙏🙏
Interesting, thank you. But as always, the trip down memory lane... Remember the colomn shift gearshifts? 🤗
Ah yes . The old "three on the tree"
I appreciate the general principles you showed us . All sorts of useful stuff here . Thanks
👍
Nice, thank you.
I think the switch mode converter is far more efficient , so nearly 3 times as more current would be available from 3.3 volts when powered off 9V
It is, I did take it up to 3.3 volts and it was drawing 0.6 amps. And things began to smoke, it is a very dead piece of equipment.
Isn't the 6v problematic?
Hi Nick, Without a charge regulator, yes it is. The battery is overcharged and destroyed.
Does steam power a train or does oil power a train?
I've tried to explain this to EV lovers. Ships are vastly more efficient than cars and trucks, yet there are no electric powered ships crossing the Pacific, or even moving from the Persian Gulf to Europe. If EVs were the least bit decent, they should all be electric, all the shipping. And none of it is. Maybe there's a handful of ferries across the globe, but if electricity is a decent replacement for fossil fuels in cars and trucks, the oceans should be covered in electric cargo ships.
Exactly, the energy density of batteries still falls way short of that of hydrocarbons.
@@Uncle-Duncan-Shack Which is why it works for cars and not for ships. Also, let's ponder one day on how many ships and trains are actually Diesel-Electric Hybrids, and why.
@@Uncle-Duncan-Shack I really doubt we will ever see much improvement in batteries for one single reason - safety. The main benefit of hydrocarbons is that engines rely on oxygen witch they take from the atmosphere. Oxygen atoms are HEAVY. To burn 1kg of petrol you need about twice as much oxygen. This makes carrying around petrol both efficient and "safe", as it needs to be mixed with the oxygen before becoming explosive. In comparison, batteries contain their oxidizer and reactant inside, suspended in a electrolyte. If there is an accident and the battery releases it's energy in a short amount of time, depending on the density, you might get your Nokia phone's battery expending and melting, your iPhone's battery catching fire, or your electric scooter exploding. And as Murphy's law states, it's not about IF it's going to happen, but WHEN. About specific energies - that's energy per mass, energy density is per volume, and it's mass what you are lugging around. If you increase the specific energy of a Li-ion's battery by 5-10 times you get TNT. That's why some batteries just expand and melt, others burn. And that's why we have reached a limit. And Petrol, w/o the oxygen as we are not carrying it around, has 50-100 times the specific energy of batteries.
Correct, a hydrocarbon is inert until an oxidizer is combined with it. It cannot produce an exothermic reaction, as you say that is a problem with batteries. There is no way to disrupt the reaction when a battery goes up in flames. And that is only one of many issues on a long list of problems with batteries.
@@traktora1 Except oxygen is all around. That’s why petrol powered cars catch fire 30 times as often as EV’s. EV’s rarely catch fire AT ALL.
This shows how one has misconceptions about common ideas .Thanks for sharing
Hi Glyn, Thanks for commenting. It was an interesting and fun video to make as this information is easy to research. This is nice to see it all in perspective. Duncan
Interesting, thanks Uncle D.
Glad you enjoyed it Nick. It is rather interesting.
Classic 👍
Indeed, the music and movies from our time are, pardon the pun, timeless.
Eish no safety belt 😃 I do like the pair of dice hanging off the rear view mirror. 👌 Authentic 👌
Hi Nick Yeah, it feels very wrong not wearing a safety belt. The ride is quite an experience, I love old cars. Thanks for looking and commenting, good to have you here!
A fine operation !
Hi there, Good to see you here! Thanks for watching and commenting, much appreciated. Kind regards, Duncan
Very impressive .Thanks for sharing this
Glad you enjoyed it
Wow, this is super cool. 👍👍👍
Thank you! Cheers!
I opened it up and found the wires attached to the sensor have been disconnected. The soldering must have come off and also there was some brown stuff over it im assuming rust. I cleaned that up but now i dont know which side the green and red so onto the sensor bulb as it doesnt indicate
No harm in trying both ways to see what works, hope you get it sorted.
... Mass produced stuff don't like fiddling it seems. 😃 Thanks...
Really interesting, thanks.
I prefer it shaken not stirred....😁😀 Speaking of motors, can a DC motor be converted to a generator? I'm asking for a friend. 🙂😜😂
Good one, thanks. Nice to go down memory lane...
Hi Nick, glad you enjoyed it!
Hallo, interesting 😊. If you have to estimate the relative humidity % Uncle D? O ja, prosperous 2024. 🙏👍
Hi Nick, all the best for 2023 to you too. Thanks for watching and commenting. This cooler is life saver in hot weather and times when I have to run stuff of an inverter as it only draws 35 Watts.
How you checked DC voltage 4.03? Mine one showing 1.48 V at that place, But Yours is Right. I fixed it now after your Video Thank You !
I did the police lights program with fully addressable led strip on Arduino and it was amazing. Once I did that it was game on for adjusting the program and creating anything I could dream up. The program I had used hexadecimal for the color brightness and time. 😊
That is very very cool :) but is there a way to make it wireless?
Yes, one can run it of a USB power bank.
I assume the film has not been available for a very long time
How is the circular metal piece right under the touch button fixed to the lamp's base's shell?
It is a round piece of copper foil which is glued to the plastic shell, the wire is soldered to it.
@@Uncle-Duncan-Shack that's what I was looking for, thank you very much.
Let's make a go-cart 😂😂😂
Eye of the tiger or eye of the mouse. 😂
Thanks for that . One can learn a lot from an experieced guy.
👀