Video from Arrow Electronics: ‘LED Colors by Wavelength’ | @Arrow_Dot_com
Like testing pens at a stationary store it’s always nice to actually *see* the LED you’re considering purchasing – even if it does have a datasheet. So this quick video from Arrow Electronics is fun because they quickly scroll through ~30 of their through-hole LED offerings, from one end of the spectrum to the other. Because the difference for example between 565nm, 571nm, and 575nm can read on paper like too little to make a difference but in reality it could make or break your project’s look and feel (or even your contract with a client!).
Laura wanted to show people what wavelengths correspond to which color variations to help when ordering LEDs.
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, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, 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.
Python for Microcontrollers — Python snakes its way on the SparkFun SAMD21 Mini, Hackaday.io, 10k thanks, and Tim’s magazine #Python #Adafruit #CircuitPython @circuitpython @micropython @ThePSF @Adafruit
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