Compiled-example-for-Sim908

利用ULN2003A进行驱动，产生PWM波，里边有照片，可供参考，通过本例程了解PWM 的基本原理和使用 (#include <reg52.h> unsigned char timer1 sbit PWM=P1^2 void system_Ini() { TMOD|= 0x11 //PWM TH1 = 0xfe //11.0592 TL1 = 0x33 TR1 = 1 IE =0x8A } main() { system_Ini() while(1) { if(timer1>100) timer1=0 if(timer1<30) PWM=0 else PWM=1 } )

CC2530单片机的flash 的读写，以及无线接收函数，看门狗的使用(CC2530 MCU flash, speaking, reading and writing, and the wireless receiving function, the use of the watch dog)

stm32 串口发送AT指令 或者字符信息(stm32 send AT commands serial port or character information)

强力向各位推荐一种比铁电存储器更优越的存储器-磁电存储器，集各种存储器优点于一体，很好的文章。(Strongly recommend to you a superior than the FRAM memory- magnetic memory, set in one of the advantages of various storage, very good article.)

说明：  oled显示openmv二值化图像，并通过按键修改阈值(OLED display openmv binary image)

超声波测距（5 28线性处理）,测量线性度很高(Ultrasonic Ranging (528 linear processing), high linearity measurements)

矩阵键盘的检测采用查询方式（去抖 松手检测）程序测试成功(The matrix keyboard detection using query (debounce let go detection) program tested successfully)

cc2540的adc使用方法，使用源码，协议栈开发部分实现(adc of cc2540 ble source code)

说明：  主要介绍bldc（无刷直流电机）的本体设计以及控制方式(mainly introduce the design and control methods of bldc)

说明：  STC89C52单片机获取DHT11温度传感器数据并显示于lcd1602液晶显示屏的详细代码，内附有ds18b20的获取代码(STC89C52 MCU gets data from sensor DHT11 ,and show in lcd1602.)