单片机读写信息纽扣，DS1990A

说明：  摄像头OV7670模块调试资料，硬件参考电路、51、STM32源码。(Camera OV7670 module debugging data, hardware reference circuit, 51, STM32 source code.)

基于51单片机的eeprom程序，可以实现字节的读写等操作(51 microcontroller based on the EEPROM program, can achieve a byte read and write operation)

说明：  用stm32f103c8t6做了一个智能台灯(Make an intelligent desk lamp with stm32f103c8t6)

说明：  使用keil开发的基于STM32F407系的非接触式红外测温程序(Use keil developed STM32F407-based non-contact infrared temperature measurement program)

跟踪触摸笔迹，触摸控芯片（ADS7846），MCU为stm32，振南电子 触摸屏上画图演示程序 如欲引用，敬请署名并告知， 严禁随意用于商业目的，违者必究，后果自负。(Tracking the touch of handwriting, touch control chip (ADS7846), MCU stm32 electronic touch screen on Zhen Nan Paint Demonstration Program For reference, please sign and inform, are strictly prohibited for commercial purposes, rights reserved, at your peril.)

数码管的显示程序，数码管循环显示900-999~(Digital loop display 900-999 ~)

单片机控制的音乐播放器的proteus仿真以及源程序，导入单片机通过测试过能正常工作，希望对须要的人有所帮助。(Music player SCM proteus simulation and control of the source code, import the microcontroller through tested to work properly, we want to help people who need.)

USB CDC settings for STM32F407 - DESCOVERY with examples

Functions related to sysfs handling.

名称：门禁模拟 模拟现实中门禁系统，可以输入密码进入也可以呼叫住户，再由住户按下开门按键 实现改密码功能，密码保存在24c02中能保证掉电不丢失密码。八个LED灯分别代表 8家住户，其中开门按键为共用，还带有忘记密码恢复按钮，模拟恢复出厂设置， 显示部分为LCD1602。程序共分为3种模式，分别为 等待输入 密码修改 呼叫住户 3种模式，其中等待输入是主要状态，所以在进入密码修改 呼叫住户模式后如果 长时间没有操作能自己切换到等待输入模式。(Name: Access Analog Simulating real access control system, you can also enter a password to enter the call households, again by pressing the open button households Implement change password function, the password stored in the 24c02 can guarantee non-volatile password. Eight LED lights represent 8 households, which opened the door keys are shared, but also with forgotten password recovery button, analog restore factory settings, Display part LCD1602. Program is divided into three modes, namely, waiting for a password to modify call households 3 modes, which is the main input wait state, so call households entering the password change mode if Their long time operation can be switched to the standby input mode.)