People make marvellous things for their pets with Raspberry Pi. Here’s a splendid hamster feeder tutorial from Christopher Barnatt of Explaining Computers, just perfect if you’re after a small project for this weekend.
Raspberry Pi servo-controlled pet feeder, using a Raspberry Pi Zero and two SG90 servo motors. This project builds on the servo control code and setup from m…
All you need to build your hamster feeder is a Raspberry Pi Zero and peripherals, a couple of servos, some plasticard, sellotape and liquid polyadhesive, and some jumper wires. The video takes you very clearly through the entire set-up, from measurements to wiring details to Python code (which is available to download). As Christopher explains, this will allow you to feed your hamster controlled portions of food at suitable intervals, so that it doesn’t eat the lot in one go and, consequently, explode. What’s not to love?
Check out the Explaining Computers YouTube channel for more clear, detailed videos to help you do more with computing. And for more Raspberry Pi projects, head to our own Raspberry Pi projects, with hundreds of ideas for beginners and beyond available in English and many other languages.
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Have you ever missed out on a great deal on Amazon because you were completely unaware it existed? Are you interested in a specific item but waiting for it to go on sale? Here’s help: Devscover’s latest video shows you how to create an Amazon price tracker using Raspberry Pi Zero W and Python.
Wayne from Devscover shows you how to code a Amazon Price Tracker with Python! Get started with your first Python project. Land a job at a big firm like Google, Facebook, Twitter or even the less well known but equally exciting big retail organisations or Government with Devscover tutorials and tips.
By following their video tutorial, you can set up a notification system on Raspberry Pi Zero W that emails you every time your chosen item’s price drops. Very nice.
Devscover’s tutorial is so detailed that it seems a waste to try and summarise it here. So instead, why not make yourself a cup of tea and sit down with the video? It’s worth the time investment: if you follow the instructions, you’ll end up with a great piece of tech that’ll save you money!
Remember, if you like what you see, subscribe to the Devscover YouTube channel and give them a thumbs-up for making wonderful Raspberry Pi content!
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YouTube is a haven for awesome Raspberry Pi projects, and we often spend time scanning through the platform’s wares for hidden gems. One such hidden gem is this video from TechWiser, in which they showcase some of their favourite Raspberry Pi projects:
Here are some of the best projects we use at TechWiser office.
From installing PiHole in the office, to upgrading a cupboard with RFID recognition for keyless entry, TechWiser has the whole ‘incorporating Raspberry Pi into everything’ thing down to a fine art.
But it’s not all just about practicality. Does anyone really need a giant Apple AirPod? No. But, does the idea of a giant Apple AirPod sound cool? You betcha!
And their YouTube button that flashes whenever they earn a new subscriber is rather lovely too. I wonder if they noticed it flash when Raspberry Pi subscribed to their channel?
TechWiser’s YouTube channel contains a plethora of Raspberry Pi and tech tutorials and reviews, and you should definitely check them out.
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In the latest Explaining Computers video, Christopher Barnatt explains how to use servo motors with Raspberry Pi. Using servos is a great introduction to the digital making side of computing; servos allow you to control the movement of all manner of project components with your Raspberry Pi and a motor controller attached to its GPIO pins.
Control of SG90 servos in Python on a Raspberry Pi, including an explanation of PWM and how a servo differs from a motor. You can download the code from the video at: https://www.explainingcomputers.com/pi_servos_video.html The five-pack of SG90 servos used in this video was purchased on Amazon.co.uk here: https://www.amazon.co.uk/dp/B07H9VC698/ref=nosim?tag=explainin-21 with a similar product on Amazon.com here: https://amzn.to/2QHshx3 (affiliate links).
Servos and your Raspberry Pi
Christopher picked up his SG90 servo motors online, where you’ll find a variety of servo options. What type of servo you need depends on the project you want to create, so be sure to consider the weight and size of what you plan to move, and the speed at which you need to move it.
As the motor controller connects via GPIO, you can even use the tiny £5 Raspberry Pi Zero to control your servo, which makes adding movement to your projects an option even when you’re under tight space constraints.
Find out more
For other detailed computing videos, be sure to subscribe to the Explaining Computers YouTube channel.
And for more Raspberry Pi projects, check out the Raspberry Pi projects page.
Raspberry Pi projects PSA
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A few of our favourite online makers decided to take part in a makers’ Secret Santa, producing home-made gifts based on their skills. So, OBVIOUSLY, Estefannie used a Raspberry Pi. Thanks, Estefannie.
I got in a Maker Secret Santa this year so I decided to make a thing and hack Instagram for it. #YTMakersSecretSanta MAKERS SECRET SANTA! FOLLOW EVERYONE: Kids Invent Stuff https://www.youtube.com/channel/UC-glo52BMvZH9PPUamjGIcw Colin Furze https://www.youtube.com/user/colinfurze The Hacksmithhttps://www.youtube.com/user/MstrJames Look Mum No Computer https://www.youtube.com/channel/UCafxR2HWJRmMfSdyZXvZMTw Sufficiently Advanced https://www.youtube.com/channel/UCVS89U86PwqzNkK2qYNbk5A Subscribe to my channel if you’d like to be the first to know when I publish the next video :) Let me know what other videos you would like to see.
In the video above, Estefannie uses a Raspberry Pi to hack Instagram to illuminate a handmade freeform circuit whenever Kids Invent Stuff gains a like on a post.
“But why not use the Instagram API?”, I hear you cry. Well, as Estefannie explains, she wanted the gift to be a surprise, and if she had used the Instagram API, she would have had to have asked them for their details in order to access it.
Watch to the end of the video to see the gift that Estefannie received from her Secret Santa, a certain Colin Furze. You can see his complete build video for the Cat-o-Matic below.
Fear not your cat feeding issues are sorted………..Furzestyle No cat was harmed in making of this but it did run off……….but came back and is fine. Thanks to the Kids Invent Stuff channel for organising this Secret Santa check them out here https://www.youtube.com/channel/UC-glo52BMvZH9PPUamjGIcw And the other channels involved Estefannie Explains https://www.youtube.com/user/estefanniegg Sufficiently Advanced https://www.youtube.com/channel/UCVS89U86PwqzNkK2qYNbk5A Look Mum No Computer https://www.youtube.com/channel/UCafxR2HWJRmMfSdyZXvZMTw The Hacksmiths https://www.youtube.com/user/MstrJames Check out the new FURZE Merch store.
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Do you need to run a script whenever your Raspberry Pi turns on? Here’s Estefannie to explain how to edit crontab to do exactly that.
Do you want your Raspberry Pi to automatically run your code when it is connected to power? Then you are in the right place. In this new #LEARNSOMETHING video I show you how to make you Raspberry Pi run your script automatically when it is connected to a power source.
Running script on startup
While there are many ways of asking your Raspberry Pi to run a script on start-up,
crontab -e is definitely one of the easiest.
AND, as Estefannie explains (in part thanks to me
bullying asking her to do so), if you create a run folder on your desktop, you can switch out the Python scripts you want to run at start-up whenever you like and will never have to edit crontab again!
Now go write some wonderful and inspiring festive scripts while I take a well-earned nap. I just got off a plane yet here I am, writing blog posts for y’all because I love you THAT DARN MUCH!
And don’t forget to like and subscribe for more Estefannie Explains it All goodness!
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