Schlagwort: easter

  • Easter fun with Raspberry Pi

    Easter fun with Raspberry Pi

    Reading Time: 3 minutes

    Easter is nearly upon us, and we’ll be stepping away from our home-office desks for a few days. Before we go, we thought we’d share some cool Easter-themed projects from the Raspberry Pi community.

    Egg-painting robot

    [youtube https://www.youtube.com/watch?v=QBEAppVn6Ao?feature=oembed&w=500&h=281]

    Teacher Klaus Rabeder designed, 3D-printed, and built a robot which his students programmed in Python to paint eggs with Easter designs. Each student came up with their own design and then programmed the robot to recreate it. The robot can draw letters and numbers, patterns, and figures (such as an Easter bunny) on an egg, as well as a charming meadow made of randomly calculated blades of grass. Each student took home the egg bearing their unique design.

    The machine has three axes of movement: one that rotates the egg, one that moves the pens up and down, and one that makes servo motors put the pen tips onto the egg’s surface. Each servo is connected to two pens. Springs between the servo and pen make sure not too much pressure is applied.

    What a cool way to spend your computing lessons!

    Digital Easter egg hunt

    eggs in foil with jumper wires attached
    Go digital this Easter

    Why hunt for chocolate eggs in a race against time before they melt, when you can go digital? Our very own Alex made this quick and easy game with a Raspberry Pi, a few wires, and some simple code. Simply unwrap your chocolate eggs and rewrap them with the silver side of the foil facing outwards to make them more conductive. The wires create a circuit, and when the circuit is closed with the foil-wrapped egg, the Raspberry Pi reveals the location of a bigger chocolate egg.

    All the code and kit you need to recreate this game yourself is here.

    Incubate baby chicks

    • inside a chick incubater
    • children watching over the incubator

    The second-best thing about this time of year — after all the chocolate — is the cute baby animals. Lambs and bunnies get a special mention, but this project makes sure that chicken eggs are properly incubated to help baby chicks hatch. Maker Dennis Hejselbak added a live-streaming camera so he and other chick fans can keep an eye on things.

    We’re sad to report that Emma still hasn’t revised her ‘No office chicks’ policy since we first reported this project back in 2015. Maybe next year?

    Happy Easter!

    Stand by for a delicious new issue of Wireframe magazine tomorrow. We’ll see you on Tuesday!

    Website: LINK

  • Weekend Project: 3D Print a Chocolate Easter Egg Dispenser Bunny

    Weekend Project: 3D Print a Chocolate Easter Egg Dispenser Bunny

    Reading Time: 3 minutes

    Ready to scarf down lots of chocolate this holiday weekend? Exercise some portion control with a 3D printed Easter Egg Dispenser Bunny.

    This weekend, you may be indulging in a traditional Easter Egg hunt in your garden. Or perhaps you’ll be kicking back with a Martini. Whichever leisure activity you pursue, make it extra special with an Easter Egg Dispenser Bunny.

    What’s so special about this bunny? For starters, it’s made with 3D printing. And it poops out mini chocolate eggs from between its paws. And it has a flip-top head for the quick loading of more chocolate goodies. We like!

    From maker Murray Clark in New Zealand, this is a simple and functional print for the holiday season. The way the mechanism works is simplicity itself; load the eggs into an internal channel that runs from top to bottom, with some assistance from gravity.

    According to Clark, “it has been designed to be an easy one piece print with two components. The clearances applied are intentionally loose so it should print well regardless of the slicing app or machine used.”

    Easter Egg Dispenser Bunny
    Easter Egg Dispenser Bunny

    Easter Egg Dispenser Bunny is Ready to Serve

    Printed at standard scale, the Easter Egg Bunny Dispenser will measures 150 x 105 x 35 mm. It can handle mini chocolate Easter Eggs measuring up to 28 x 22 mm, with a rolling clearance between 1.5 to 2 mm.

    A little step at the bottom will prevent the Easter Eggs from rolling straight through, so they are dispensed one at a time. When the foremost Easter Egg is picked up (and devoured), the remaining eggs shuffle down the line until the next one comes to a rest against the step.

    If you have a bigger build plate on your 3D printer, the design can be scaled up to accept larger Easter Eggs. Or even just normal, hard-boiled eggs. The best way to do this, advises Clark, is to the measure the Easter Eggs to be dispensed before printing, to ensure they can roll freely in the internal channel.

    Another piece of advice is to ensure you roll your Easter Eggs in sideways so they roll through the internal channel. And you may need to hold the first egg in place at the bottom during loading, otherwise the momentum of the next egg to be be loaded may knock it out.

    Ready to print an Easter Egg Dispenser Bunny of your very own? Let us know how you get on. And if you love the result, don’t forget to tip the designer for their efforts.

    Easter Egg Dispenser Bunny
    Easter Egg Dispenser Bunny

    License: The text of „Weekend Project: 3D Print a Chocolate Easter Egg Dispenser Bunny“ by All3DP is licensed under a Creative Commons Attribution 4.0 International License.

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    Website: LINK

  • Alex’s quick and easy digital making Easter egg hunt

    Alex’s quick and easy digital making Easter egg hunt

    Reading Time: 3 minutes

    Looking to incorporate some digital making into your Easter weekend? You’ve come to the right place! With a Raspberry Pi, a few wires, and some simple code, you can take your festivities to the next level — here’s how!

    Easter Egg Hunt using Raspberry Pi

    If you logged in to watch our Instagram live-stream yesterday, you’ll have seen me put together a simple egg carton and some wires to create circuits. These circuits, when closed by way of a foil-wrapped chocolate egg, instruct a Raspberry Pi to reveal the whereabouts of a larger chocolate egg!

    Make it

    You’ll need an egg carton, two male-to-female jumper wire, and two crocodile leads for each egg you use.

    Easter Egg Hunt using Raspberry Pi

    Connect your leads together in pairs: one end of a crocodile lead to the male end of one jumper wire. Attach the free crocodile clips of two leads to each corner of the egg carton (as shown up top). Then hook up the female ends to GPIO pins: one numbered pin and one ground pin per egg. I recommend pins 3, 4, 18 and 24, as they all have adjacent GND pins.

    Easter Egg Hunt using Raspberry Pi

    Your foil-wrapped Easter egg will complete the circuit — make sure it’s touching both the GPIO- and GND-connected clips when resting in the carton.

    Easter Egg Hunt using Raspberry Pi

    Wrap it

    For your convenience (and our sweet tooth), we tested several foil-wrapped eggs (Easter and otherwise) to see which are conductive.

    Raspberry Pi on Twitter

    We’re egg-sperimenting with Easter deliciousness to find which treat is the most conductive. Why? All will be revealed in our Instagram Easter live-stream tomorrow.

    The result? None of them are! But if you unwrap an egg and rewrap it with the non-decorative foil side outward, this tends to work. You could also use aluminium foil or copper tape to create a conductive layer.

    Code it

    Next, you’ll need to create the code for your hunt. The script below contains the bare bones needed to make the project work — you can embellish it however you wish using GUIs, flashing LEDs, music, etc.

    Open Thonny or IDLE on Raspbian and create a new file called egghunt.py. Then enter the following code:

    We’re using ButtonBoard from the gpiozero library. This allows us to link several buttons together as an object and set an action for when any number of the buttons are pressed. Here, the script waits for all four circuits to be completed before printing the location of the prize in the Python shell.

    Your turn

    And that’s it! Now you just need to hide your small foil eggs around the house and challenge your kids/friends/neighbours to find them. Then, once every circuit is completed with an egg, the great prize will be revealed.

    Give it a go this weekend! And if you do, be sure to let us know on social media.

    (Thank you to Lauren Hyams for suggesting we “do something for Easter” and Ben ‘gpiozero’ Nuttall for introducing me to ButtonBoard.)

    Website: LINK

  • Wie man richtig Eierpeckt, alle Spielregeln!

    Wie man richtig Eierpeckt, alle Spielregeln!

    Reading Time: 2 minutes

    Spitze gegen Spitze und Boden gegen Boden.

    Wer kennt es in Österreich nicht, das Eierpecken! Kaum ein anderer Brauch ist neben dem Ostereier-Suchen so beliebt, wie das Eierpecken. Traditionell werden bei der Osterjause, die bunten Ostereier gerne verspeist. Mithilfe des Eierpeckens können diese in einem lustigen Spiel geöffnet werden. Und das beste dabei: Sowohl Alt und Jung, Groß und klein, alle können dabei mitmachen.

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    So wird Eierpecken richtig gespielt:

    Es spielen immer zwei Personen gegeneinander. Jede Person nimmt dazu ein Osterei in die Hand. Zuerst werden die Eier mit den Spitzen gegeneinander geschlagen, danach wird mit dem Ei-Boden gekickt.

    Wer es zuerst schafft, das Ei der anderen Person einzudrücken, hat gewonnen. Als Belohnung bekommt der Gewinner das eingedrückte Osterei und darf nun beide Eier essen.

    Spielregeln für Fortgeschrittene aus Österreich

    easter_eggs_8

    In Österreich wurde Eierpecken auch einmal anders gespielt. Für diese Form benötigte man aber großes Geschick. Denn beide Spieler mussten eine Münze nacheinander, aus einer gewissen Entfernung, auf ein Ei werfen. Traf ein Spieler das Ei und blieb die Münze in diesem stecken, hatte er das Ei für sich gewonnen. Wenn ein Spieler jedoch das Ei verfehlte, ging die Münze an den anderen.

     

    Quelle: http://www.wirkochen.at/gourmet-news/Spielregeln-beim-Eierpecken/183216606