Summer Making and Learning

Mrs. J in the Library

Collette J., or Mrs. J in the Library, is a full-time elementary teacher-librarian, blogger, and mama from Pennsylvania. She loves technology, books in any format, makerspaces, and all things Harry Potter. The information and opinions represented here are my own and are not the views and opinions of any business or organization.

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7 Responses

  1. I love this, and I love your process. I want to see a labeled diagram of that Twinkle page–it looks amazing! What kind of microcontroller did you use? I am feeling inspired and like I want to take a break from making stuffed bears and go back to paper circuits for my last week of summer!

  2. Oh yeah, I have that issue with blue LEDs sometimes as well–they want to suck all the power. I think using resistors must be a way to eliminate this problem, but I haven’t had the energy yet to calculate which kind of resistor each LED would need and then add them. Easier to just slap the LEDs on there and hope for the best! 🙂 The circuit stickers from chibitronics have built in resistors, and so the colors play together nicely, at least so far in my experience.

    • Collette J. says:

      I really looked at Circuit Stickers, but they are just so expensive for a surface-mounted LED. I think they’re great for someone who isn’t interested in the electronics, but is more into the art side of things. As you can see from the commercial clipart by Little Red’s Treehouse, that isn’t me. 🙂

  3. Collette J. says:

    I used a LilyTwinkle like you did with your iPad case project. I don’t know any code languages, so I needed the pre-programmed microcontroller. If you e-mail me, I’ll send you the Twinkle pages. I think I need to sleep though…it’s getting late.

    • I just use the circuit stickers when I’m combining different colors that don’t play well together on one circuit–I agree they are expensive, so I pretty much save them for when I need them! I’ll teach kids to use the surface mount ones first, then pull out the stickers when needed so that they will last a while.

      Which piezo works without a microcontroller? I thought you must be using an ATtiny85 because you mentioned a buzzer, but now I see you didn’t use a microcontroller for that part. I can see the Twinkle page well enough above–now that I know it’s a LilyTwinkle, I can figure it out! 🙂 I’m going to attempt to program an ATtiny for a paper circuit–I am just waiting for a part to come in the mail that I need for uploading the code to the ATtiny.

      • Collette J. says:

        Good idea about making the circuit stickers last and starting off with surface-mount LEDs as students are learning. I think I’m going to have to buy a good amount of copper tape. 🙂
        There’s one piezo by Adafruit that’s called “breadboard friendly.” That’s the one that works on a simple circuit, no microcontroller necessary. Sometime I’d like to learn how to program in Arduino and make the piezo play a grandfather clock chime on a plain piezo for “Hickory, Dickory Dock,” but for beginners, that seems like asking too much.

      • I’ve gotten in the habit of cutting the copper tape in half (lengthwise), which works just as well and makes the tape last longer.

        There is a ton of arduino code out on the web that you can easily copy and load to a project–I can’t write arduino yet, but it’s easy to copy/paste and then figure out where to tweak. That said, I have no idea how to program it to play a song! 🙂 One of my students made an arduino keyboard this year; maybe he could do it. 🙂

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