用NodeMCU显示时间，用Arduino监测温度；可以选择在每秒钟改变显示的颜色。 迷你LED的额定电压是3.0V到5.5V，16mA（每个LED）。 我们的NodeMCU有3.3V的稳压器，可以正常驱动所有的LED。 第2步：LED WS2812B 3030 这里使用了WS2812 NeoPixel Led，它带有集成的IC，这样我们就可以对 ...
Blockchains claim to be public, distributed, effectively immutable ledgers. Unfortunately, they also tend to get a little bit huge – presently the Bitcoin blockchain is 194GB and Ethereum weighs in at ...
If your interest has been piqued by the inexpensive wireless-enabled goodness of the ESP8266 microcontroller, but you have been intimidated by the slightly Wild-West nature of the ecosystem that ...
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