3leds

能利用stm32f4+ov5640去识别黑色(Recognition of Black Using stm32f4+ov5640)

基于MSP430单片机的CH452芯片驱动薄膜键盘，诺基亚5110屏幕显示，硬件亲测可用。(CH452 based on MSP430 MCU chip driver membrane keyboard, nokia 5110 screen display, the hardware test available.)

oled屏幕上面显示时分秒，可自行控制暂停(Time and seconds are displayed on the OLED screen, and the pause can be controlled by itself.)

stm32 上 lin通信示例代码，自己已测试过，收发正常，在汽车行业用到(STM32 Lin communication example code, they have been tested, send and receive normal, used in the automotive industry)

小巧的RTOS,用于AVR,简单修改也适合其它单片机(Compact RTOS, for the AVR, simple modification is also suitable for other devices)

CC2530 步进电机控制实验。一个简单的例程(CC2530 stepping motor control experiment)

利用STM32主控单元与三轴陀螺仪MPU6050。MPU6050进行倾角测量，对测得的加速度和角速度数据进行AHRS数据融合，最终得到姿态角，姿态角再进行卡尔曼滤波。STM32单片机控制步进电机运动，对检测到的姿态角做最优控制。(Development of a Robot Balanced on a Ball)

说明：  STM32F072C8T6单片机读写中颖锂电池模拟前端SH367309的读写I2C程序，16串的电池AFE(STM32F072C8T6 MCU read and write Sinowealth SH367309 I2C program)

RS485通信的源代码，可进行两个系统之间信号的传递，介绍其编程规则(RS485 communications source code, can be passed between the two signal systems, introduces its programming rules)

说明：  利用GPIO控制无源蜂鸣器发声，播放音乐。使用SysTick延时，使用位带操作寻址IO口引脚。(GPIO is used to control the voice of passive buzzer and play music. Use SysTick delay, use bit band operation to address IO pins.)