hx711各引脚的作用
HX711是一款高精度模拟数字转换芯片,其引脚的作用如下:
VCC:芯片的电源输入,一般连接至3.3V或5V电源。
GND:芯片的地线,连接至电源的负极。
SCK:时钟信号输入,由微控制器提供,用于控制数据的传输。
DT:数据信号输入/输出,连接至称重传感器的信号引脚。
需要注意的是,HX711芯片的引脚与称重传感器的引脚是有对应关系的,具体的连接方式需要根据具体的电路设计来确定。
HX711 RATE引脚配置
HX711 Sensor RATE Pin Configuration Tutorial
The RATE pin on the HX711 sensor allows adjustment of the data output rate, which influences how frequently new measurements are available from the device. The configuration involves setting this pin either high or low depending upon whether a faster or slower sampling rate is desired.
For configuring the RATE pin:
- When the RATE pin connects to ground (GND), it sets the update rate at approximately 80 samples per second.
- Connecting the RATE pin to VCC results in an increased sample rate of around 10 samples per second[^1].
To physically configure the RATE pin based on these requirements, one may use jumper wires or solder connections directly between the RATE pin and GND/VCC as needed by the application design specifications.
In code implementation using Arduino IDE for instance, there would not be direct software control over changing what voltage level goes into/out of this specific hardware pin since its state determines during wiring setup phase before uploading any sketch onto microcontroller board handling communication with HX711 module via DOUT and CLK pins instead.
#include "HX711.h"
// Initialize HX711 object without specifying gain; default value will apply
HX711 scale;
hx711dout引脚和sck 引脚的功能
HX711是一款专门用于称重传感器的放大器芯片,它的DOUT和SCK引脚的功能如下:
DOUT:数据输出引脚,用于将放大后的模拟信号转换成数字信号输出。
SCK:时钟输入引脚,提供时钟信号。
当称重传感器输出模拟信号时,HX711会将模拟信号放大,并将其转换成数字信号输出到DOUT引脚。此时,主控芯片(如单片机)通过SCK引脚提供时钟信号,将DOUT引脚输出的数字信号逐位读取出来,最终得到称重传感器的实时重量值。因此,DOUT和SCK是HX711芯片中非常重要的引脚之一。
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