swp_nfc

说明：  说明： stm32-超声波避障，提供一套源码，供开发者参考。(Description: STM32 - ultrasonic obstacle avoidance, provides a set of source code for developers to reference.)

使用STM32的RTC，然后显示在液晶屏上。(Use the STM32 the RTC, and then displayed on the LCD screen on.)

使用A/D控制PWM输出,已经通过测试,可以运行，性能稳定(The use of A/D control PWM output, has passed the test, you can run, stable performance)

单片机实现直流数控稳压电源,可调电压为0-9.9伏,步进为0.1伏,可以自动扫描键盘以增加或者减少电压(MCU NC Regulators DC power supply with adjustable voltage of 0-9.9 volts, stepping to 0.1 volts, can automatically scan the keyboard to increase or reduce the voltage)

说明：  ESP8266 PWM控制一盏LED的亮度变化。(ESP8266 PWM controls the brightness change of an LED.)

说明：  主控采用stm32f407，温度传感器用pt100，可以实现从0到400度的温度采集。并且是双路温度采集。非常精准。(The main control adopts stm32f407 and the temperature sensor uses pt100, which can realize the temperature collection from 0 to 400 degrees. And it is a dual-channel temperature collection. Very precise.)

网上有许多关于DM9000网卡芯片的介绍，然而这些介绍大多是关于Linux或WinCE下的驱动程序或移植，很少有介绍单片机驱动DM9000的例子。本文详细介绍了调试DM9000E的过程，仅供参考。(There are many online card chip on the DM9000 introduction, however, most of these presentations are on Linux or WinCE driver or under the transplantation, very few examples of introduced Microprocessor DM9000. This paper describes the process of debugging DM9000E for reference purposes only.)

输入通道捕捉程序，适用于飞思卡尔JM60单片机，用于捕捉信号。(The input channels capture program for the Freescale JM60 microcontroller used to capture the signal.)

stc12c5a60s2单片机，I2C接口通讯程序，可实现I2C总线的启动，停止及握手等功能(stc12c5a60s2 microcontroller, I2C interface communication program, can be realized starting I2C bus stop and other functions handshake)

在keil上进行单片机语言编程，很实用的小例(Microcontroller programming language on the keil, very practical small cases )