Advantages and disadvantages of mqtt protocol

The Internet of things is the expansion and expansion of the traditional Internet. The user terminal extends from traditional computer to any device, in which the device collects information through various sensors, and then collects information, exchanges and exchanges network information through computing devices. The reason for the emergence of mqtt protocol is that mobile […]

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Driving design of multicolor LED

Light emitting diode (LED) is a simple and economical way to display state information. However, for some projects, a single color LED may not be enough. However, due to space, cost or power constraints, multiple LEDs may not be realistic. In view of these situations, polychromatic LED provides an effective solution, provided that the LED […]

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Application and design principle analysis of usb-c interface

In the past few years, there have been many articles praising the advantages of usb-c connector. In addition to its 10 Gigabit per second (Gbps) bandwidth and alternate mode video function, it has two very valuable advantages: the plug that can be plugged forward and backward and the Intelligent High-power function. The value of positive […]

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Application of automatic address assignment technology and its importance and necessity in Engineering

introduction Variable refrigerant flow multi split air conditioning system is an air conditioning system which controls the refrigerant flow and realizes refrigeration or heating through refrigerant evaporation or condensation. Its working principle is: the control system collects indoor comfort parameters, outdoor environment parameters and state parameters representing the operation status of the refrigeration system. According […]

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Pay attention to the choice of solid state disk interface

By 2020, we must be very familiar with SSD. Because it’s so cheap that everyone can afford it, it’s no longer as high as it was a few years ago. Although some partners use SSD, they don’t necessarily know it. According to our usual use of conventional consumer grade solid-state disk, the interface has SATA […]

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