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 ...

Have an ESP8266 development board such as the NodeMCU or Wemos D1? You’re currently reading Hackaday, so probably. Got an Android device kicking around? Also seems ...

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 ...