Another instant classic video from Big Clive, who does a great job at examining some fire sprinkler heads he picked up off eBay for a couple of bucks each. For whatever reason in my own life I’ve only ever looked at, examined, or noticed red-liquid sprinkler heads, and so I was completely unaware of the color coding system, which as Big Clive points out is more for easy identification than operation – the temperature breaking point is actually regulated by the bubble in the bulb!
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.
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