October 2019
Intermediate to advanced
350 pages
9h 5m
English
Content preview from Hands-On Internet of Things with MQTT
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NodeMCU
NodeMCU is definitely the cheapest development board introduced here that can be connected to the internet. On AliExpress, one of the biggest Chinese shopping platforms, you can get a NodeMCU for just a few dollars:
NodeMCU v3
Based on the ESP8266, it runs on 3.3V and offers many ports and supports protocols such as SPI or I2C. In contrast to the boards from Arduino or Particle, it only supports one analog input, though. If you plan on reading multiple analog sensors (for example, light and pressure sensors) at the same time, you should either get another board or you have to add an analog-to-digital converter (ADC) to your setup. ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.