Arduino and Raspberry Pi are wonderful platforms to rely on to learn electronics. There are already plenty of awesome fun electronics projects available to beginners. This NeoPixel Thermometer Scarf is particularly interesting as it can show you the temperature outside.
The developer used an Adafruit Flora Arduino board, a DHT11 humidity and temperature sensor module, LEDs, and a few other parts for you to get started. More information is available on Instructables.
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