PIC_RS232

DS18B20 检测温度，LCD1602液晶显示。(DS18B20 testing temperature, LCD1602 liquid crystal display.)

LCD1602显示的液晶密码锁，第一行显示显示固定密码，第二行显示输入密码，密码输入完毕后会有正确或者错误提示,为了演示方便，提示密码，输入密码部分也没有用星号代替。可以自行更换成星号。(The LCD1602 display LCD password lock, the first line shows the the display fixed password, and the second line enter the password after password input will be correct or error, and to demonstrate the convenience, prompting the password, enter the password part is not replaced with asterisks. Replaceable asterisk.)

基于MSP430的超声波测距程序代码，定时器A输入捕捉使用例程，(MSP430-based ultrasonic ranging program code)

STM32驱动TLV5616实现da转换 实测无误(Realization of DA conversion by STM32 driver TLV5616)

12864液晶模块开发源代码，12864液晶模块开发源代码(LCD)

the code for vorticity-stream function method of FVM!(the code for vorticity-stream function method of FVM!)

说明：  ht1261 STM32 驱动，亲测可用(ht1621 driver for STM32.tested.)

mini voltmeter using bascom

AVR单片机各寄存器的ppt整合，适用于AVR开发时查阅资料，个人整合(AVR series Microcomputer Register information)

SIM900A的EAT开发，文档中的源码实现功能比较多。Adc，audio play,csd,customerATCommand,DTMF,fcm,flash,gpio,gpio interrupt,http,i2c,keypad,pwm,serialPortStatus,SIM_MUX,sms,socket,spi,spienhance,system,TCP,timer,update,urc(SIM900A EAT development, in the document source more functionality.Adc, audio play, CSD, customerATCommand, DTMF, FCM, flash, gpio, gpio interrupt, HTTP, i2c, keypad, PWM, serialPortStatus, SIM_MUX, SMS, socket, spi, spienhance, system, TCP, timer, update, the urc)