Scattering communication refers to over-the-horizon communication using the scattering effect of electromagnetic waves caused by the inhomogeneity in the troposphere and ionosphere. It is divided into
Portable devices such as PDAs, smart phones, and digital cameras have special power management requirements in battery-powered products. Efficiency indicators are important, but the pressures from siz
I have been working on the Bluetooth of the Rapid IOT kit this week and I am going crazy. At first I thought Bluetooth was just like a serial port, but I thought it was too simple. The Bluetooth proto
Use infrared to scan downwards and count the number of protrusions on the object by looking at the high and low parts of the object. The protrusions on the object have a fixed distance, height, and le
[size=4]A star development board of the mobile station: STM32 Nucleo Pack FOC and 6 step motor control (ST 3-phase motor kit), has always been popular among netizens. Now the development boards have b