As shown in Figure 1, we can see a 485 self-transceiver circuit. Figure 2 is the PIN definition of the 485 chip. During the data transmission process, when TXD sends 0, the transistor is not turned on
What is SAR? SAR : SAR stands for Specific Absorption Rate, which is generally called electromagnetic wave absorption ratio or specific absorption rate in Chinese. It is the electromagnetic wave energ
[align=left][font=微软雅黑][size=4][b]The development board mobile station has added a new board: the STM32F723 Discovery Kit. First, a brief introduction to the board: [/b][/size][/font][/align] [align=l
[i=s]This post was last edited by Beifang on 2022-9-13 22:19[/i]EEWorld invites you to disassemble (sixth issue): disassemble the car wireless charger - Power Technology - Electronic Engineering World
The model of quartz crystal consists of three parts. The first part uses Chinese phonetic letters to indicate the shell shape and material: S----Plastic shell; B----Glass shell; J----Metal shell;. The