A new year approaches, and with it a new round of conventions to talk about electronics in cosplay. No matter the allotted time, it’s always a crunch, so anything that fits on a handout for later is a boon.

Just as sewing is a core skill of costuming, soldering is vital to electronics…yet the tools rarely include instructions. There are some excellent tutorials and videos, but I wanted to distill the basics to something one could absorb in 30 seconds. I focused on the two main mistakes novices make: heating the solder instead of the parts, and trying to learn on a discount store iron or granddad’s hand-me-down WWII-era elephant gun.

The new soldering card joins our collection on Github. These are all Creative Commons — download, remix, print and share them for your own classes or reference! PDF format, sized for Overnight Prints’ standard business card template.

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 35,000+ makers on Adafruit’s Discord channels and be part of the community!

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more

CircuitPython – The easiest way to program microcontrollers –

Maker Business — Challenges in trade between China and U.S. highlighted by forced labor bill

Wearables — Zip it, zip it good

Electronics — When to opt for alkaline batteries

Python for Microcontrollers — Python on Microcontrollers Newsletter: Arduino 2.0, Podcasts and much more! #CircuitPython @micropython @ThePSF @Raspberry_Pi

Adafruit IoT Monthly — BBQ Smoker, Emoji Telegraph, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 9/21/2022 Featuring Adafruit ENS160 MOX Gas Sensor – Sciosense CCS811 Upgrade – STEMMA QT / Qwiic

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at !


  1. OK. Good pretty much. More or less. It maybe helps the beginner. But beginners, please read the blurb (copy paste follows): “There are some excellent tutorials and videos.”
    Watch/read the tutorials/videos.

    If you don’t and rely on these cards, you’ll have something functional that a professional will likely look at and shudder.

    To get a good joint doesn’t require too much (check those tutorials and videos!). A joint above and beyond requires more. So.. If you want to be good, please check the tutorials and videos. IF you want to be outstanding do a course.

    I did High Reliability Hand Soldering as part of my apprenticeship. (NASA Standard). Here are my criticisms and please, this is just me be a ‘nit-picking’ douchebag.
    1) 20-60W Iron. Are you trying to solder copper plumbing in a house? A 15W iron is heaps. In fact a cheap solder station is infinitely better than the best 20W ‘electronics’ soldering iron.
    2) 1 – 2 seconds? Do you want a dry joint? Especially if you have a 60W soldering iron?
    3) Tips often comes down to personal preference. I can’t stand chisel tip. I use a fine point. I actually found the flow better in my preference. I found the chisel tip tended to ‘lump’ the solder and give more more solder than I needed on a joint.

    There is more. But.. Really, a good youtube video does more than these few pictures. Even if you do have to listen to someone dropping the L in solder. The phrase “Soddering” gives me twitches to this day!

  2. Hi Phil!

    Thanks for mentioning us in this post! It would be much appreciated if you could add a link to our site.

    Have a great New Year!


  3. Resistor color code is "Violet" not Purple.

  4. Mike is correct,
    I have been an Electronic Technician since 1958 and the color code for resistor has always been and always will be forever,"Violet"NOT Purple!

Sorry, the comment form is closed at this time.