Adafruit is celebrating Lunar New Year🐍 Wednesday 1/29/2025. In combination with MLK Day, shipping could be delayed. Please allow extra time for your order to ship!
Reddit user Quilbert has a test in circuits coming up, and she needed a way to remember the resistor color codes. She found a unique solution, as seen above. Naturally (because it’s the internet), somebody accused her of cheating (without any actual evidence), and she responded:
We’re given a notebook page front and back for personal notes, and an equation sheet with the color code on it. Having it on my hands is just quicker… and cuter
Nice.
Great idea, Quilbert — you’ve taken wearable electronics to the next level! 🙂
Good luck on the test!
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
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 code.org, 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.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!
Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: CircuitPython 2025 Wraps, Focus on Using Python, Open Source and More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
And aside from the, “it’s cheating” juvenility, I think it should be pointed out that in the process of painting your nails like that, you’d probably commit the codes to memory pretty well. Doing this should be an assignment for everyone in Quilbert’s class! 🙂
(Or they should be required to post 10 comments on the Adafruit blog, which would probably have a similarly educational effect.)
And aside from the, “it’s cheating” juvenility, I think it should be pointed out that in the process of painting your nails like that, you’d probably commit the codes to memory pretty well. Doing this should be an assignment for everyone in Quilbert’s class! 🙂
(Or they should be required to post 10 comments on the Adafruit blog, which would probably have a similarly educational effect.)
@bruce: “the process of painting your nails like that, you’d probably commit the codes to memory pretty well”
exactly!
Yeah, the effort some people go through to “cheat” is often more than the work itself in the first place; irony at it’s best.
Tying a physical activity to a visual cue to aid in memorization = big win.
Love the creativity.
Genius.
Where is the rainbow? Ignoring indigo, black, brown…gray white.
I had never thought of using nail polish to memorize resistors values, but if it works, it works. Very clever!