iiinova — where your digital self keeps evolving

M@ M@z (he/him) @matzelectronics.bsky.social · 14/07/2026

I try really hard not to have conspiracy brain. But I can’t help but think Walmart knows the source (or at least has a good idea) of the Cyclospora outbreak. They have gobs of data about who bought what food and then later bought items to deal with the diarrhea.

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Raider @iwillnotbesilenced.bsky.social · 25/05/2026

The GOP Platform: Protect the fetus; starve the child. Honor the soldier; abandon the veteran. Enrich the corporation; fleece the worker. Quote the Bible; ignore the verses.

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Marc Elias @marcelias.bsky.social · 10/05/2026

I often say that the fight for democracy is the fight of our generation. But let me be clear, if you aren’t fighting for Black voting rights right now then you aren’t really fighting for democracy.

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M@ M@z (he/him) @matzelectronics.bsky.social · 02/05/2026

I'm starting to think the MAHA/Wellness mindset is just lazy doctoring. A good doctor works with you to treat/solve what is ailing you. Wellness is about what you're doing (or not - blame). While that can help, it's not going to work for everything. And in some cases can be outright deadly.

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M@ M@z (he/him) @matzelectronics.bsky.social · 02/04/2026

Happy 50th Apple! I grew up with an Apple //c, then one of the cool transparent Macs, then one of the first Powerbooks in college. We now have M1 and M4s. Every one has just been a solid, dependable computer. #retrocomputing I still have the //c. If you have one and want to restore it... 1/2

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M@ M@z (he/him) @matzelectronics.bsky.social · 19/03/2026

Hi! I'm looking for broken Apple II keyboards. I successfully designed a replacement keyboard for the Apple IIc, and I'd like to do the same for other vintage computers. Is anyone willing to let me "rent" a keyboard so I can get measurements? I'd happily send $$ or a prototype replacement.

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M@ M@z (he/him) @matzelectronics.bsky.social · 18/03/2026

I'm determined to figure out how to do a 4-wire XY capacitive sensing trackpad. This is attempt 3.

A grid of red, yellow, green, and blue rectangles. The red rectangles get larger as you move to the right, the yellow get larger as you move to the left, the blue get larger as you move to the top, and the green get larger as you move to the bottom.

A render of a PCB using different sized rectangles to make up a capacitive sensing surface.

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M@ M@z (he/him) @matzelectronics.bsky.social · 14/03/2026

Happy Pi day & Happy 5th Birthday to Piper Make! @playpiper.bsky.social We're still going strong and it's still one of my favorite tools to use personally. I believe deeply in the mission of our company - to bring fun, quality STEM/STEAM education to kids through stories and exploration.

A chromebook showing the Piper Make website behind educational kits made from laser-cut wood and electronics, including a 8x8 RGB LED matrix, a walking robot, a rover robot, a Hot Wheels ramp with sensors, a breadboard with LEDs and a Raspberry Pi Pico, a houseplant with a soil sensor, a finger-clamp pulse sensor, and a miniature house with a solar panel on top.

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M@ M@z (he/him) @matzelectronics.bsky.social · 19/12/2025

I'm selling this breakout board $5.50 right now: www.tindie.com/products/mat... I've got a new version in the works, but I need to sell of the small amount of stock I have left of the current version. If you've never played with the CH559 MCU before, it's kind of fun ;) 1/2

tindie.com

CH559 USB Host Breakout Board by MatzElectronics on Tindie

Breakout Board for the CH559 USB Host IC

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M@ M@z (he/him) @matzelectronics.bsky.social · 07/11/2025

Hi everyone! Shameless plug time - I've restocked the Apple //c replacement keyboard kits! You can purchase yours on my Tindie store here: www.tindie.com/products/mat...

tindie.com

Apple IIc Keyboard by MatzElectronics on Tindie

Replacement Keyboard for an early (Model A2S4000) Apple IIc Computer

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Jens Scheidtmann @grimaldi.bsky.social · 04/11/2025

🧪 science feed

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Alejandra Caraballo @esqueer.net · 31/03/2025

Everyone needs to understand what Elon and DOGE are building, an AI driven panopticon that will know everything about you and will be used to ensure compliance with their fascist agenda. They are creating a unified database of everything the federal government has on every single American. 🧵1/

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M@ M@z (he/him) @matzelectronics.bsky.social · 17/03/2025

It's up for sale! Grab yours today! The ATTINY PRO is a small-but-capable ATtiny3217 development board with a form-factor similar to a Pro Micro. It's like the original Arduino board, but with the much better peripherals of the Tiny AVR 1 and 2 series. www.tindie.com/products/mat...

A small printed circuit board with a USB micro jack, a ch340 ic, a switch, an attiny3217 ic, and a 4 pin just connector.

A Pinout diagram for the ATTINY PRO development board, showing power, ground, port pin, digital, analog, programming, and special function pin locations.

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M@ M@z (he/him) @matzelectronics.bsky.social · 15/03/2025

The Raspberry Pi Pico came out just over 4 yrs ago. At the time, we had shelved a project we were building - it was good but we didn't love the boards we were using. When the Pico came out, we brought the project back & worked fast to finish it. Happy Pi Day / 4th Birthday make.playpiper.com !

make.playpiper.com

Piper Make

Piper Make is a browser-based editor with included lessons, tutorials, and projects designed to introduce Python on the Raspberry Pi Pico. Piper Make uses Blockly and has lessons that introduce coding...

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M@ M@z (he/him) @matzelectronics.bsky.social · 11/03/2025

Hi Electronics Bluesky! I made a new module for my Tindie store (and honestly, for me to use too!) It's a dev board based on the ATTINY 3217. It has an onboard CH340 for both programming via UPDI and for UART<>USB. I love these chips as I2C peripherals. Tindie.com/matzelectronics

The back side of a small printed circuit board with labels for each pin, including pins 0 through 7, 10 through 17, and ground, 3v, 5v, and raw power pins.

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Shay Stewart-Bouley @blackgirlinmaine.bsky.social · 08/02/2025

I talk about race, openly and honestly. It's also what I do for a living, and while it can be uncomfortable for white bodied people to hear criticism aimed at white folks. If we are to move together as a society, it requires getting real and moving past the fragility.

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M@ M@z (he/him) @matzelectronics.bsky.social · 22/01/2025

New Tindie.com/stores/matzelectronics products in development! These are all capacitive-touch PCBs. Left one is a track pad, middle is a keypad, and right is an iPod-style rotary wheel.

3 stacks of printed circuit boards. The left most stack is green and square. Is the middle stack is a numeric keypad. The right stack is small and circular.

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M@ M@z (he/him) @matzelectronics.bsky.social · 22/01/2025

DOH! Forgot to check the box to remove the order number. Ugh.

A stack of black circular printed circuit boards with an order number.

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M@ M@z (he/him) @matzelectronics.bsky.social · 05/01/2025

Trying to design an input stage for an ESP-32 based scope. Haven't had to bust out my own scope in a while. It amazes me how quickly this analog stuff can get complicated! Just trying to attenuate and bias a range from +/- 5V to 0 to 3.3v, and I'm 4 op-amps deep.

An oscilloscope connected to a breadboard that contains several op-amps and resistors.

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M@ M@z (he/him) @matzelectronics.bsky.social · 31/12/2024

I made a new thing! Here's a four digit 7-segment display module. It's nice and bright, and it's designed to be connected via I2C (STEMMA QT, QWIIC). Firmware is open source and written in Arduino so it's easy to modify to fit your needs. Available here: www.tindie.com/products/mat...

tindie.com

7-Segment Clock Display by MatzElectronics on Tindie

A four-digit 7-segment clock display with an I2C interface, white LEDs, and 0.9" tall digits.

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M@ M@z (he/him) @matzelectronics.bsky.social · 19/12/2024

Trying out my not-yet-finished mechanical keyboard this evening. It's my first mechanical keeb...it's going to take some getting used to, but I think I'll like it! Not sold on using CircuitPython yet. A couple of weird issues that I have had to work around. I think I eventually land on Arduino.

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M@ M@z (he/him) @matzelectronics.bsky.social · 18/12/2024

18 transistors and a boost converter later, and it's working! I wanted a display with large digits and the dots in a clock config. It took a bit to source one & the company sold me 25 as a sample order. I didn't read the datasheet carefully enough. The segments need 6V and the dots need 3V.

A breadboard with a large number of jumper wires, transistors, and resistors, connected to a small microcontroller and a boost converter module, all to drive a 4 digit 7 segment display with the number 0143 glowing.

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M@ M@z (he/him) @matzelectronics.bsky.social · 12/12/2024

Making progress on the hardware hacker keyboard! The 128x32 OLED screen will fit well along the top row. I just ordered the shell, which will have integrated stabilizers for the large keycaps. Still finalizing the controller and USB hub PCBA. That will connect using an FPC cable.

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M@ M@z (he/him) @matzelectronics.bsky.social · 29/11/2024

I hope everyone had a wonderful day of rest today. I decided to do the Black Friday sales thing and offer 10% off at my Tindie store. Here's the shameless plug: I sell a replacement kybd for early Apple IIc computers & a nifty USB Host module: Use code MATZ10%OFF www.tindie.com/stores/matze...

tindie.com

MatzElectronics on Tindie

I'm an educator and maker from the US Pacific Northwest. My day job is as a middle school engineering teacher, and my side hustle is as a …

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Tomb💀Time @tubetime.bsky.social · 22/11/2024

author here: check out my coffee table book full of cool photos of electronics! it's totally accessible to kids and non-techy adults, and your nerdier friends and family will really enjoy it. nostarch.com/open-circuits

nostarch.com

Open Circuits

A photographic exploration of the tiny design wonders hidden inside everyday electronics.

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Kelly @broadwaybabyto.bsky.social · 20/11/2024

If you’re still masking - thank you. If you’re cleaning the air - thank you. If you’re staying home when sick - thank you. If you realize vulnerable people are just as worthy of safety and survival as everyone else - thank you If you’ve refused to toss us aside for “back to normal” - thank you.

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Gadgetoid @gadgetoid.com · 03/11/2024

Starting a new list of mechanical keyboard makers and enthusiasts, poke me if you think you should be on it! go.bsky.app/CUU2akC

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M@ M@z (he/him) @matzelectronics.bsky.social · 18/11/2024

Does anyone know of a good solution for stabilizers with low profile keyswitches?

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M@ M@z (he/him) @matzelectronics.bsky.social · 16/11/2024

I had a lot of fun designing the keyboard replacement for my Apple IIc (which you can buy on Tindie.com!). I might just be hooked on this custom keyboard thing...so I'm thinking of building a "hardware hacker" keeb. A modified 1800 layout with an OLED screen, a USB Hub, and voltmeter. Thoughts?

A rendering of a PCBA of a custom hardware hacking keyboard.

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M@ M@z (he/him) @matzelectronics.bsky.social · 14/11/2024

If you're a teacher and you want to join me today to start your journey into learning electronics, we are hosing a webinar today at 3:30 Pacific: invent.playpiper.com/piper-novemb...

invent.playpiper.com

Piper November Workshop

STEM Workshop on Circuits and Programming using Raspberry Pi Pico

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M@ M@z (he/him) @matzelectronics.bsky.social · 13/11/2024

Setup for tomorrow's webinar...it's not stupid if it works, right?

A messy desk with a ring light and a web camera pointed at a breadboard with a raspberry pi pico module.

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Holly Anderson 🍇 @hollyanderson.bsky.social · 09/11/2024

not a power user so if you have navigation questions idk, but these are some blocklists I'm finding helpful right now: bsky.app/profile/skyw... bsky.app/profile/hedg... bsky.app/profile/fran... bsky.app/profile/gors... bsky.app/profile/numb... bsky.app/profile/skyw... bsky.app/profile/numb...

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🌙NoxuArts - Commission status: OPEN! @notyournyx.bsky.social · 06/11/2024

Always 💖 Don't make me tap the sign

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M@ M@z (he/him) @matzelectronics.bsky.social · 05/11/2024

Embedded microcontroller stuff, Product design (STEM/STEAM education), Educational Leadership & Admin, Vanilla JavaScript / Web Dev Physics, Laser cutting, small scale manufacturing, Passable Art, Wannabe Graphic Design

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بلبل @chipperdoodles.bsky.social · 05/11/2024

a little bit of cleanup for the files and I think i can be done with this project, still some things to test but shouldnt be anything too major. #chippydootles

two keyboards pictured, new green circuit boards within old beige cases, one has switches placed the other does not

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J. Offir, PhD @joffirphd.bsky.social · 24/10/2024

🧵 Here is some *wonderful* news that will make your covid-conscious day 🎉: Per CT state senator Matt Lesser (democrat) 8th grader Eniola Shokunbi has secured $11.5 million in funding for school CR boxes. Below is a photo of Ms. Shokunbi & Sen Lesser, from his FB page. 1/8

Photo of student Eniola Shokunbi & State Senator Matt Lesser (D), standing in the legislative office building at the CT state capitol.

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Courtney Milan @courtneymilan.com · 24/10/2024

AI would be easy to kill. Pass a law saying that the owner of the AI corporation is as legally liable for what AI says as if an employee said it.

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M@ M@z (he/him) @matzelectronics.bsky.social · 23/10/2024

Doing radio stuff. Trying to make i2c radio modules. Making slow progress, but my brain hurts.

A breadboarded raspberry pi pico connected to a custom esp32 module via i2c.

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Faey @faey.online · 20/10/2024

Now that this app is becoming more popular, there has unfortunately been an influx of right wing accounts I highly recommend subscribing to this blocklist if you want to avoid this type of content bsky.app/profile/did:...

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