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 ...

这个库之前见到过，也测试过，然后就忘了一点印象都没有了。最近纠结如何用arduino播放音乐，测试了几个方案都不满意，问了一下朋友，他给我发来了这个库，打开一看，之前标记过star．．．但是真没什么印象了，去找喇叭发现所有的材料都在一个盒子里 ...

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 you’ve read any of our posts in the last couple years, you’ll have noted that our community is stoked about bringing the Internet to their devices on the cheap with the ESP8266 modules. Why? This ...

Discover how to build a real-time event notification system by integrating NodeMCU (Arduino) with Google Firebase and Laravel. This tutorial covers the complete setup, from hardware to cloud and ...