DRV8311监控电流信号例子

以下是基于DRV8311的电流监控信号的示例代码：

#include <SPI.h>
#include <Wire.h>

const int CS_pin = 10; // SPI Chip Select pin for DRV8311
const int current_pin = A0; // Analog input pin for current sensing
const float current_resistance = 0.1; // Value of current sensing resistor
const float current_gain = 5; // Gain of current sensing amplifier

void setup() {
  pinMode(CS_pin, OUTPUT);
  SPI.begin();
  Wire.begin();

  // Configure DRV8311 for current sensing
  digitalWrite(CS_pin, LOW);
  SPI.transfer(0x02); // Write to control register 2
  SPI.transfer(0x80); // Set CS_BLANK and PWM_MODE bits
  digitalWrite(CS_pin, HIGH);
}

void loop() {
  // Read analog input for current sensing
  int raw_current = analogRead(current_pin);

  // Convert raw reading to current value
  float current_voltage = (raw_current / 1023.0) * 5.0;
  float current = current_voltage / (current_resistance * current_gain);

  // Print current value to serial monitor
  Serial.println(current);
  delay(100);
}

此代码通过SPI与DRV8311通信，并将其配置为监测电流信号。使用电流传感器检测电流，将其转换为电压，并将其转换为电流值。最后，将电流值打印到串行监视器中。