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Code Club Electronics 3
Now let's add a switch, so we can turn our LED on and off.
Depending on the type of switch you use, you may have to experiment with which in to connect. It should work as illustrated.
If you have a reed switch, you can try one too, and use a magnet to activate the switch.
An LED is like a bulb, but one way, the short lead goes towards the ground. As long as the resistor is in series, it can be before or after the LED.
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Code Club Electronics 2
So now we have a powered breadboard, disconnect the power (important) and connect up a LED (Light Emitting Diode) and a resistor in SERIES.
An LED is like a bulb, but one way, the short lead goes towards the ground. As long as the resistor is in series, it can be before or after the LED.
NOTE ABOUT COMPONENTS
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Code Club Electronics 1
As we are undertaking varied projects at Code Club, I am going to put together a guide on creating some simple circuits.
I have a few breadboard power supplies that connect to a breadboard as illustrated below.
The following video, illustrates how to create the diagram in Fritzing but if you follow the layout you can produce the same circuit with a breadboard and components.
I have embedded a video below.
The idea here is, that followers can both use software and real components to build up software, being able to plan where components are to go, can be really useful.
Note the orientation of the PSU so that the +v and gnd pins are also matching the rows for +v and gnd (red / blue)
Also note that the PSU as +v in and can produce either 3v or 5v, any circuits MUST be given the correct voltage as this will determine values of resistors used.
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What do we get from crude oil?
This is a repost with more information, links and a correction due to a 404 on a link.
The news that the UK is going to issue more licences for crude oil exploration, promoted a discussion on the Fediverse. From this, I asked what other products come from crude oil.
However, this link seems to give a 404, so I found an alternative here, along with a more detailed list of the chemical products here.
So in an attempt to research this further, I have so far found this infographic and article. I will embed the actual infographic below.
, but please ensure credit goes to Oil Field Team.
So from this there are a huge number of products, that we need to either:-
If we are going to give up on oil completely.
So from this I will look at a few of these, and give my perspective
Lubricating oils these are needed to keep machines running, even electric cars have moving parts. These products can also be specialist so may not be easily replaceable.
Asphalt used for road surfaces, again even Hydrogen / Electric cars need a road surface for getting around on.
Nylon used in clothing, but also used for ropes etc, it is strong, and has many uses.
Teflon used for non-stick surfaces, IIRC this was developed as part of the space industry.
Kerosene used in some rocket fuels, while we are developing alternative power for rockets (e.g. nuclear) this may be some years away, and it may depend on where we are going, being a indication of what type of fuel we need.
Sunscreen, Essential to protect our skin.
Aspirin Common medication.
Thermoplastics, Again a common type of plastic with a specific uses where resistance to high temperatures are needed.
So it may not be THAT easy to completely stop our reliance. We will need to spend a lot of money on R&D to fully develop alternatives using other means. We can get some plastics from plants, but again it seems to depend on type and usage.
However, we can stop our reliance on oil for car fuels, however are electric cars suitable for emergency services, or military use? By military, we need to remember that we deploy soldiers to help in disaster recovery, not just wars or peacekeeping.
So this needs far more rational discussion.
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#CrudeOil,#Oil,#Derived,#Products,#Use,#Discussions,#OilProducts
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NFL 2023 week 13
NFL week 9 fixtures can be found here
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Code Club 25/11/2023 Write up
We had a busy session today. As you can see from the photo, we did more work on the netbooks.
We were also doing more Scratch and some HTML / CSS.
I have added more links below to try and reflect our current set of activities.
I was also helping another attendee with electronics, even though I think what he wants to do is a little complex for the resources available and requires more engineering and or electronics knowledge.
As well as the above, Helen from the STEM group was working on getting the line following robot working and also getting the Lego WeDo working, so we now have a small Lego robot that can detect obstacles, as well as a basic Lego Windmill, which we can look at this during the next STEM group meeting on the 9th December.
Next Code Club
The next code club is on 2/12/2023
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#CodeClub,#Python,#Web,#Hardware,#Software,#Electronics, #STEM
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Tech Learning Collective
Just reposting this as it is a useful learning resource
Links
Tuxiversity forum thread for the above,
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#TechLearningCollective,#Learning,#Education,#Workshops,#Courses
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NFL 2023 week 12
NFL week 9 fixtures can be found here
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Typesetting Math multiplication
There are several different ways to express multiplication in Mathematics. As \LaTeX is (or can be) used to typeset mathematical and scientific expressions. The following may be useful.
In general we use the $\ce{\times}$ symbol to express multiplication, for example 12 $\ce{\times}$ 6
This can be type set using
12 $\ce{\times}$ 6
However it may also be expressed with * in which case we just use
12 * 6
In algebra, this can be expressed as:
AB
Where A is 12 and B is 6
However you may come across the use of a dot
12 $\ce{\cdot}$ 6
In which case we use
12 $\ce{\cdot}$ 6
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#LaTeX,#TypeSetting,#Maths,#Science,#Notation
This could be useful for typesetting the notation we used in the November stem group meeting for determining the speed of light
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Code Club 18/11/2023 Write up
Another busy session today, stared off taking a netbook apart to remove the fan, so that we could use it to replace a faulty fan in another netbook. This all went fine, we now have more spare parts in the box.
We also installed windows on 2 netbooks, had a go at installing FreeBSD but got stuck, this is one thing I am not too sure on, we ended up on an installer screen asking about RAID devices.
I also got to do some electronics, and have identified some more resources I need for the next session.
We also had a new attendee who may be able to bring some friends on the 25th. So all good stuff.
We are trying to find out if we can still download an older ISO file for Xebian 2022. The website just has xebian 2023.
I have added more links below to try and reflect our current set of activities.
Useful Links
Next Code Club
The next code club is on 25/11/2023
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#CodeClub,#Python,#HourOfCode,#Scratch,#Minecraft,#Themes, #Java,#Programmng
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