Combining the previously implemented Modbus acquisition and MQTT transmission JSON data framework, today we will integrate and build a basic data acquisition and transmission device framework. [/size]
Why is there TCP/IP protocol?All over the world, various computers run different operating systems to serve everyone. The methods used by these computers to express the same information vary greatly.
I want to make a small thing to play with, but the esp8266 doesn't have enough pins. Whatever the pyboard sends to the esp8266, the esp8266 will send it back to me. How can I use uart to achieve this?
The operating temperature range of commercial-grade digital chips is 0~+70℃.
Industrial grade is -45~+85 or 105℃.
What are the chip temperature requirements for medical devices?