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串口发送命令 up 20000 1 20000 触发
#include Arduino.hconst int outputPin 12; // 输出引脚
String inputCommand ; // 串口输入缓冲区// 解析命令参数#xff0c;例如 up 10 5 解析为…esp32触发相机测试成功上升沿触发
串口发送命令 up 20000 1 20000 触发
#include Arduino.hconst int outputPin 12; // 输出引脚
String inputCommand ; // 串口输入缓冲区// 解析命令参数例如 up 10 5 解析为 delayMicrosecondsTime10, repeatCount5// 解析命令参数例如 up 10 5 解析为 delayMicrosecondsTime10, repeatCount5
bool parseParameters(String command, int delayMicrosecondsTime, int repeatCount) {int firstSpace command.indexOf( ); // 查找第一个空格位置if (firstSpace 0) return false; // 没有参数int secondSpace command.indexOf( , firstSpace 1); // 查找第二个空格位置if (secondSpace 0) return false; // 参数不完整// 提取参数并转换为整数String delayMicrosecondsStr command.substring(firstSpace 1, secondSpace);String repeatStr command.substring(secondSpace 1);delayMicrosecondsTime delayMicrosecondsStr.toInt();repeatCount repeatStr.toInt();// 检查参数是否合法return delayMicrosecondsTime 0 repeatCount 0;
}// 解析命令参数例如 up 10 5 3 解析为 delayMicrosecondsTime10, repeatCount5, additionalParam3
bool parseParametersThree(String command, int delayMicrosecondsTime, int repeatCount, int additionalParam) {int firstSpace command.indexOf( ); // 查找第一个空格位置if (firstSpace 0) return false; // 没有参数int secondSpace command.indexOf( , firstSpace 1); // 查找第二个空格位置if (secondSpace 0) return false; // 参数不完整int thirdSpace command.indexOf( , secondSpace 1); // 查找第三个空格位置if (thirdSpace 0) return false; // 参数不完整// 提取参数并转换为整数String delayMicrosecondsStr command.substring(firstSpace 1, secondSpace);String repeatStr command.substring(secondSpace 1, thirdSpace);String additionalStr command.substring(thirdSpace 1);delayMicrosecondsTime delayMicrosecondsStr.toInt();repeatCount repeatStr.toInt();additionalParam additionalStr.toInt();// 检查参数是否合法return delayMicrosecondsTime 0 repeatCount 0 additionalParam 0;
}void handleUpCommand(String command) {int delayMicrosecondsTime 0, repeatCount 0, additionalParam 0;if (parseParametersThree(command, delayMicrosecondsTime, repeatCount, additionalParam)) {Serial.println(Triggering UP signal...);for (int i 0; i repeatCount; i) {digitalWrite(outputPin, HIGH); // 输出高电平delayMicroseconds(additionalParam); // 等待digitalWrite(outputPin, LOW); // 恢复低电平delayMicroseconds(delayMicrosecondsTime); // 等待间隔}} else {Serial.println(Invalid parameters for up command);}
}void handleDownCommand(String command) {int delayMicrosecondsTime 0, repeatCount 0;if (parseParameters(command, delayMicrosecondsTime, repeatCount)) {Serial.println(Triggering DOWN signal...);for (int i 0; i repeatCount; i) {digitalWrite(outputPin, LOW); // 输出低电平delayMicroseconds(delayMicrosecondsTime); // 等待digitalWrite(outputPin, HIGH); // 恢复高电平delayMicroseconds(delayMicrosecondsTime); // 等待间隔}} else {Serial.println(Invalid parameters for down command);}
}void parseCommand(String command) {command.trim(); // 去掉多余的空格或换行符if (command.startsWith(up)) {handleUpCommand(command);} else if (command.startsWith(down)) {handleDownCommand(command);} else {Serial.println(Invalid command! Use up or down);}
}void setup() {pinMode(outputPin, OUTPUT); // 设置输出引脚digitalWrite(outputPin, LOW); // 初始化输出为低电平Serial.begin(9600); // 初始化串口通信
}void loop() {// 检查是否有串口输入while (Serial.available() 0) {char receivedChar Serial.read();if (receivedChar \n) { // 检测到回车符执行命令parseCommand(inputCommand);inputCommand ; // 清空输入缓冲区} else {inputCommand receivedChar; // 拼接命令字符}}
}
