The Arduino if else statement : Or how the Arduino makes decisions. Learn exactly how to write the "if else" code. Find out the different ways of using it - you don't always need the 'else' part. Find out the short way of writing 'if-else' (less brackets to write). learn about...
1.if语句 if (x >1) { // 加入代码 } 说明:if与比较运算符结合使用,测试是否已达到某种条件。当x大于1,可以执行代码。圆括号中的语句为真,大括号中的语句就会执行。否则,程序将跳过这段代码。 2.if...else语句 if (x < 1) { // 执行A } else if (x >= 2) { // 执行B } else { // ...
if-elsestatement if-else-ifstatement. Theifstatement Given below is the structure of anifstatement: If (conditional expression) { Body of the if statement } Theconditional expressioncan be anything that can result either in true or false. If the statement is true, the code in the...
void loop() { delay(100); if ( S1() ) digitalWrite(LED1, 1); else digitalWrite(LED1, 0); } Test 1 Note: true = 1; false = 0. Or should I say any value except 0 is TRUE. Note the code above. An "if" statement has the general form of: if (condition) light_led1; els...
for (int i = 1; i <= codeLen; i++) { if (i % 2) { // 信号 rawCodes[i - 1] = results->rawbuf[i]*USECPERTICK - MARK_EXCESS; Serial.print(" m"); } else { // 空档间隙 rawCodes[i - 1] = results->rawbuf[i]*USECPERTICK + MARK_EXCESS; ...
else if(Pulse_Width>=25&&Pulse_Width<=27) //接着高电平1.7ms return 1; } return -1; } //接收命令码脉冲函数 void pulse_deal() { int i; //执行8个0 for(i=0; i<8; i++) { if(logic_value() != 0) //不是0 return;
If (!pt2258.init()) Serial.printIn(“PT2258 Successfully Initiated”);Else Serial.printIn(“Failed to Initiate PT2258”); 接下来,我们设置按钮的去抖动延迟。 Button_1.setDebounceTime(50);Button_2.setDebounceTime(50); 最后,通过使用默认通道音量和引脚号设置来启动 PT2258 IC。 /* Iniciating PT...
else if(val_FB ==0xBB) //如果读出的第二个字节为小车后退标志字节0xBB { val_right=val_left; back(); //小车后退 flag='b'; //设置小车后退标志字符 count1 = 0; //恢复到编码器测速的初始状态 count2 = 0; old_time= millis();
if (!root.success()) { Serial.println("parseObject() failed"); return ; } String code = root["code"]; if(strcmp(code.c_str(),"code=led-1")==0) { i=1;digitalWrite(D7, LOW); } else if(strcmp(code.c_str(),"code=led-0")==1) { i=0;digitalWrite(D7, HIGH); } }...
// SPI or QSPI flash filesystem (i.e. CIRCUITPY drive) #if defined(__SAMD51__) || defined(NRF52840_XXAA) Adafruit_FlashTransport_QSPI flashTransport(PIN_QSPI_SCK, PIN_QSPI_CS, PIN_QSPI_IO0, PIN_QSPI_IO1, PIN_QSPI_IO2, PIN_QSPI_IO3); #else #if (SPI_INTERFACES_COUNT == 1...