On this day in 1951, Jay Forrester filed his patent(2736880) for magnetic-core memory, which became the predominantly used memory in computers and was used well through the 1970s.
In memory of the patent Ben North and Oliver Nash have come up with a 32-bit core memory Shield for the Arduino! Check out the great report at the project page on how the memory works. They Include all the Eagle files, Gerber files, parts list, and Arduino code for the boards as well.
Image Source: CHM
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.
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