AT89C2051 stepper motor drive circuits and source code (using keilC51)

51系列单片机LCD液晶显示程序-51 MCU LCD display program

环境：keil c51 i2c调度工具-environment : Keil decoder i2c scheduling tools

这是一个ht1620的资料，希望对你有用-This is a ht1620 information useful to you hope

usb下载线，可以完全取代并口下载，为没有并口的笔记本提供方便。-usb download cable, you can completely replace the parallel port to download, there is no parallel port for the notebook with ease.

ARM9芯片片外启动的初始化以及中断处理程序-ARM9 chip, chip to start the initialization and interrupt handler

通过电脑串口读取传感器数据并进行实时显示-Via the computer serial port to read sensor data and real-time display

一线总线”数字化温度传感器是DALLAS最新单线数字温度传感器， 同DS1820一样，DS18B20也 支持“一线总线”接口，测量温度范围为 -55°C~+125°C，在-10~+85°C范围内,精度为±0.5°C。DS1822的精度较差为± 2°C 。现场温度直-Bus line " digital temperature sensors are single-DALLAS latest digital temperature sensor, with the DS1820, as, DS18B20 also supports" bus line " interface, measurement temperature range of-55 ° C ~+125 ° C, at-10 ~+85 ° C range, the accuracy of ± 0.5 ° C. DS1822 relatively poor for the accuracy of ± 2 ° C. scene straight temperature

图12F628

多功能广告牌，12864液晶显示，首行滚动显示广告语，按键选择广告，预存5条广告，18B20检测温度显示，DS1302万年历显示，可调时间，具有掉电保护，串口向PC机实时传送温度、时间信息-Multi billboards, 12864 liquid crystal display, the first-line scrolling display advertising language, button select advertising, stored five advertisement, 18B20 test temperature display, DS1302 calendar display, adjustable time, with a brown-out protection, serial port to the PC, real-time delivery temperature, time information

nec单片机硬件IIC的接口程序（EEP）-nec microcontroller interface hardware IIC (EEP)