锐能微RN8302B代码

以下是使用锐能微RN8302B芯片进行电能计量的示例代码，供参考：

#include <SPI.h>

#define RN8302B_CS_PIN 10

// RN8302B寄存器地址
#define RN_UA 0x0C
#define RN_UB 0x0E
#define RN_UC 0x10
#define RN_IA 0x12
#define RN_IB 0x14
#define RN_IC 0x16
#define RN_E 0x06
#define RN_EA 0x08

void setup() {
  // 初始化SPI接口
  SPI.begin();
  SPI.setClockDivider(SPI_CLOCK_DIV2);

  // 初始化RN8302B芯片
  pinMode(RN8302B_CS_PIN, OUTPUT);
  digitalWrite(RN8302B_CS_PIN, HIGH);
  delay(100);
  digitalWrite(RN8302B_CS_PIN, LOW);
  delay(100);
  digitalWrite(RN8302B_CS_PIN, HIGH);
  delay(100);

  // 设置电能积分器的脉冲输出模式
  writeRegister(0x46, 0x0001);
}

void loop() {
  // 读取电流电压寄存器的值
  uint16_t ua = readRegister(RN_UA);
  uint16_t ub = readRegister(RN_UB);
  uint16_t uc = readRegister(RN_UC);
  uint16_t ia = readRegister(RN_IA);
  uint16_t ib = readRegister(RN_IB);
  uint16_t ic = readRegister(RN_IC);

  // 计算电压电流实际值
  float u = (float)ua / 32768.0 * 220.0;
  float v = (float)ub / 32768.0 * 220.0;
  float w = (float)uc / 32768.0 * 220.0;
  float i = (float)ia / 32768.0 * 5.0;
  float j = (float)ib / 32768.0 * 5.0;
  float k = (float)ic / 32768.0 * 5.0;

  // 读取电能寄存器的值
  uint32_t e = read32Register(RN_E);

  // 输出结果
  Serial.print("Voltage: ");
  Serial.print(u);
  Serial.print("V, ");
  Serial.print(v);
  Serial.print("V, ");
  Serial.print(w);
  Serial.println("V");

  Serial.print("Current: ");
  Serial.print(i);
  Serial.print("A, ");
  Serial.print(j);
  Serial.print("A, ");
  Serial.print(k);
  Serial.println("A");

  Serial.print("Power: ");
  Serial.print(u * i);
  Serial.print("W, ");
  Serial.print(v * j);
  Serial.print("W, ");
  Serial.print(w * k);
  Serial.println("W");

  Serial.print("Energy: ");
  Serial.print(e * 0.001);
  Serial.println("kWh");
  Serial.println();

  delay(1000);
}

// 读取16位寄存器的值
uint16_t readRegister(uint8_t addr) {
  uint16_t value = 0;

  SPI.beginTransaction(SPISettings(8000000, MSBFIRST, SPI_MODE0));
  digitalWrite(RN8302B_CS_PIN, LOW);
  SPI.transfer(addr);
  value = SPI.transfer(0) << 8;
  value |= SPI.transfer(0);
  digitalWrite(RN8302B_CS_PIN, HIGH);
  SPI.endTransaction();

  return value;
}

// 读取32位寄存器的值
uint32_t read32Register(uint8_t addr) {
  uint32_t value = 0;

  SPI.beginTransaction(SPISettings(8000000, MSBFIRST, SPI_MODE0));
  digitalWrite(RN8302B_CS_PIN, LOW);
  SPI.transfer(addr);
  value = (uint32_t)SPI.transfer(0) << 24;
  value |= (uint32_t)SPI.transfer(0) << 16;
  value |= (uint32_t)SPI.transfer(0) << 8;
  value |= (uint32_t)SPI.transfer(0);
  digitalWrite(RN8302B_CS_PIN, HIGH);
  SPI.endTransaction();

  return value;
}

// 向寄存器写入16位的值
void writeRegister(uint8_t addr, uint16_t value) {
  SPI.beginTransaction(SPISettings(8000000, MSBFIRST, SPI_MODE0));
  digitalWrite(RN8302B_CS_PIN, LOW);
  SPI.transfer(addr | 0x80);
  SPI.transfer(value >> 8);
  SPI.transfer(value & 0xFF);
  digitalWrite(RN8302B_CS_PIN, HIGH);
  SPI.endTransaction();
}

该示例代码使用了Arduino开发板和SPI接口来与RN8302B芯片进行通信，可以实时读取电压、电流、功率和电能等数据。请注意，该代码仅供参考，具体的使用方法需要根据实际情况进行调整。