一种可能的解决方法是使用SPI通信协议与ADC MCP3561进行数据交互。以下是一个示例代码,展示了如何初始化和读取MCP3561的转换值。
#include
// Define MCP3561 pins
const int CS_PIN = 10;
void setup() {
// Initialize SPI communication
SPI.begin();
SPI.setDataMode(SPI_MODE1);
SPI.setBitOrder(MSBFIRST);
// Set CS_PIN as output
pinMode(CS_PIN, OUTPUT);
digitalWrite(CS_PIN, HIGH); // Set MCP3561 CS_PIN to HIGH by default
}
void loop() {
// Select MCP3561 by setting CS_PIN to LOW
digitalWrite(CS_PIN, LOW);
// Send command to read conversion value
SPI.transfer(0x00); // Send dummy byte to initiate conversion
// Read 24-bit conversion value
int32_t conversionValue = 0;
conversionValue |= SPI.transfer(0x00) << 16; // Read MSB
conversionValue |= SPI.transfer(0x00) << 8; // Read mid byte
conversionValue |= SPI.transfer(0x00); // Read LSB
// Deselect MCP3561 by setting CS_PIN to HIGH
digitalWrite(CS_PIN, HIGH);
// Print conversion value
Serial.print("Conversion Value: ");
Serial.println(conversionValue);
delay(1000); // Delay for 1 second before next conversion
}
请注意,此代码示例假定MCP3561已正确连接到Arduino,并且SPI库已正确安装。您可能还需要根据您的硬件和需求进行适当的配置更改。
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