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 ...
使用SD库将其复制到SD卡。 得出一个结论,ESP的demo在瞎鸡儿写。。。头打烂给你,在8266上面你找到这些引脚,屁股给你踢歪。 骂归骂,事还得办完。 我们可以知道,一次可以连接上三组spi,如果就看片选的引脚 GPIO0是烧写的引脚,需要慎重。 也就是说,两个SPI ...
The NodeMCU development board is a powerful solution to program microcontrollers and be part of the Internet of Things (IoT). The NodeMCU development board, based on ESP8266EX, is a cute module with a ...
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 ...
The Espressif ESP8266 chipset makes three-dollar ‘Internet of Things’ development boards an economic reality. According to the popular automatic firmware-building site nodeMCU-builds, in the last 60 ...
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