i2c

Keyboard code for the controller and processor

stm32f103 单片机 HAL库定时器应用例程(stm32f103 HAL library timer application routine)

说明：  使用51单片机控制LED灯，实现交通灯功能。(The use of 51 single-chip computer to control the LED lights to achieve the function of traffic lights.)

本人做的四旋翼飞行器源码，这个是纯遥控版，可以实现稳定飞行，内含mpu6050,5883l，等传感器驱动，以及四元数姿态解算，和PID，以及遥控的解锁上锁等(I do four rotorcraft source, this is a pure version of the remote control, you can achieve a stable flight, containing mpu6050,5883l, and other sensor-driven, and quaternion attitude solution, and PID, and a remote unlock locked, etc.)

JSON脚本C语言使用的案例，包括C语言对JSON脚本的输入和输出。(JSON scripting language used C cases, including the C language for JSON script input and output.)

4X4点阵键盘+1602液晶显示做的计算器（AVR单片机）(4X4 matrix keyboard 1602 LCD calculator to do (AVR microcontroller))

用于学习stm32单片机的一些扩展例子，对于学习stm32 很有帮助(For learning stm32 SCM extensions examples)

单片机控制数字电位器x9313的编程。本编程结合运算放大器设置成一个可调电源，通过单片机控制电位器的阻值修改电位器两端电压从而达到数控电源的效果。电压值可通过单片机外界LCD显示。(Programming of digital potentiometer X9313 controlled by mcu. This program is combined with operational amplifier set into an adjustable power supply, through the MCU control potentiometer resistance, modify potentiometer voltage at the end, so as to achieve the effect of numerical control power supply.Voltage value can be displayed by external LCD of mcu.)

说明：  oled-iic通信通用代码，只需改.h里的修改部分即可使用。(The general code of oled-iic communication can be used only by modifying the modified part in. H.)

说明：  STM32官方固件库，亲自测试有效，哈哈(Official firmware library of STM32, tested by yourself, ha ha)