A memristor is a passive component like a resistor, capacitor, or inductor. It’s not widely known, as it was first postulated in the early 1970s. The concept can be boiled down to a resistor that changes resistance based on current, and has a “memory” of that resistance. This function is very similar to how the connections between neurons function, and thus memristors have become a focal point for creating neural networks on chips. For more information read https://www.americanscientist.org/article/the-memristor.
I believe I may have a functional design for a memristor that lowers resistance with current, and would like others to attempt my experiment (and improve on it), with the goal of ultimately creating a simple device, much like a resistor, that can be used in DIY/maker circuits. I have not attempted the TiO2 neuron discussed in the american scientist article, but may try to build one next. I’m going to call mine an “electrolytic memristor” — as it’s based on a NaSO4 / Deep Eutectic electrolyte, and aluminum’s passivation properties. It also appears to have an interesting “diode”-like behavior when operating.
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: The latest on Raspberry Pi RP2350-E9, Bluetooth 6, 4,000 Stars 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
