printf("a=%s",a);//打印a if(strstr((const char*)a,"on")) GPIO_ResetBits(GPIOB,GPIO_Pin_5);//如果a里有“on”,开灯 //这是因为我们收到的数据格式是:+IPD开头的,后面还有一些乱七八糟的东西,最后才是实际收到的数据, //因此要用这样的判断方式 if(strstr((const char*)a,"off")) GPI...
Delay(60000); P0=0xff; Delay(60000); Delay(60000); } for(i=1;i<=8;i++)//从L1到L8依次点亮{ P0=0xff<<i;Delay(60000);Delay(60000);} for(i=1;i<=8;i++)//从L1到L8依次熄灭{ P0=~(0xff<
题目【多选题】单片机的P34、P35、P36、P37口分别接LED1、LED2、LED3、LED4, 输出低电平点亮LED灯,程序如下: #include "reg52.h" #define uchar unsigned char uchar tab[]={0xef,0xdf,0xbf,0x7f,0x7f,0xbf,0xdf,0xef };/* 点亮LED的状态数据*/ void delay() { ...
printf("LED_Task Running,LED1_ON\r\n"); vTaskDelayUntil(&pxPreviousWakeTime,xTimeIncrement);//在上面已经设置成500ms printf("tick1 = %d\r\n",xTaskGetTickCount()); LED1_OFF; printf("LED_Task Running,LED1_OFF\r\n"); vTaskDelayUntil(&pxPreviousWakeTime,xTimeIncrement);//在上面已经设...
(GPIOE, GPIO_Pin_5); delay_ms(500); } } /* ===led.h=== */ //这样的宏定义是为了防止led.c内的函数被重复声明 #ifndef __LED_H #define __LED_H void LED_Init(void); #endif /* ===led.c=== */ #include "led.h" #include "stm32f10x.h" //当函数参数为空时,写上void是很...
DC 6-30V 1 Channel 5V LED Display Automation Cycle Delay Timer Relay Control ON/Off Switch Delay Timing Cycle 999 minutes No reviews yet Yueqing Taixin Electric Co., Ltd.Custom manufacturer7 yrsCN Key attributes Industry-specific attributes
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If LED pin voltage is within 1V of VOUT, then the channel is switched off and a 8µA test current is placed in the channel to sense when the channel moves below VOUT – 1V. Figure 3. EN Timing Diagram z The device requires a minimum 10us delay TSETUP to ensure the initialization...
println(val, DEC); delay(30); //delay 30 ms } } 树莓派4B 接线: 代码: C语言版: #include <wiringPi.h> #include <softPwm.h> #include <stdio.h> #define uchar unsigned char #define LedPinRed 0 #define LedPinGreen 1 void ledInit(void) { softPwmCreate(LedPinRed, 0, 100); ...
EPL-16BS-1X150LED-100 The EPL-16BS-1X150LED-100 Explosion Proof LED Light from Larson Electronics is rated Class 1 Division 1-2 Groups C D and Class 2 Division 1-2 and uses a 16 inch LED light head to produce 12,000 lumens Larson Electronics LLC www.Lars