lpc23xx

stm32f103下电子钟，利用液晶屏显示(stm32f103 an electronic clock, use the LCD display)

STM32项目实战之RTC备份SRAM功能实现代码,对于初学者来说，是有非常的帮助效果的(RTC STM32 project combat the SRAM backup function implementation code, for beginners, it is very help effect)

STC8和STC15系列选型，STC8和STC15系列选型(Selection of STC8 and STC15 Series)

说明：  创龙底板原理图，dsp编码时引脚查看对比，C6748+fpga(Principle of Chuanglong Floor, Pin View and Contrast in DSP Coding, C6748+fpga)

测温模块使用防水型PT100，显示屏使用1602，使用PID算法控制继电器的开关从而控制加热棒的通断(Temperature measurement module uses waterproof PT100 and display screen 1602. PID algorithm is used to control the switch of relay to control the on-off of heating rod.)

ATMEGA8_ LTC2400 6位半表头程序 LTC2400最高测量电压为5.3V，超过5.3V或反接都会烧掉。 模拟部分供电最好经过7815稳压，最高输入电压不宜超过18V。 模拟电路与数字电路分开供电。 不要使用开关电源或PWM升压、降压电路供电 (ATMEGA8_ LTC2400 6 ½ -digit meter program LTC2400 highest measured voltage is 5.3V, 5.3V or reverse will be burned over. After 7815 some of the best analog power supply voltage, the maximum input voltage should not exceed 18V. Separate analog and digital circuit power supply. Do not use a switching power supply or PWM buck, boost circuitry)

STM32F103C8T6 IO口操作，初学流水灯例子(STM32F103C8T6 IO port operations, beginner water lights example)

s3c2440的usb驱动代码，想往这方面发展的，请及时下载哦。(this is the source of usb driver for S3C2440，I wishe it can help us to improve the sense for usb。)

飞行控制器源码内置pid算法以及陀螺仪姿态结算是飞控入门的好源码(The built-in PID algorithm of flight controller source code and the attitude settlement of gyroscope are good source codes for the introduction of flight control.)

stm32 sim900a 实现stm32拨打电话与接听电话(stm32 sim900a )