SM2246EN_tu

程序主要实现了无线模块nrf24l01传输温度的，功能。(Program achieved a major wireless module nrf24l01 transmission temperature function.)

说明：  returns the device state

用于PC与西门子S7-200 PLC组成的控制系统(A control system consisting of PC and SIEMENS S7-200 PLC)

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

说明：  利用89S51单片机，通过DS18B20温度传感器测得当前的温度值，再送入4位8段数码管显示(Using 89S51 microcontroller, temperature sensor, through DS18B20 measured current temperature value, and then into four 8 digital tube display)

PS2手柄在51上的程序分析，用于智能小车。(PS2 handle on the 51 program analysis, for smart car.)

modbus通信协议格式与程序范例 MCU为STC12C5A60S2(modbus protocal and code in mcu STC12C5A60S2)

单片机串口2取GPS时间经纬度等，然后通过GSM发送出去，同时显示发送出去的数据 串口1用于与GSM通信(Microcontroller serial port 2 to take GPS time, latitude and longitude, etc., and then sent via GSM, at the same time display of the data sent out the serial port 1 for GSM communication)

mmax232的详细介绍，有兴趣的可以参看以下，很有用的。(details of max232 interest can be found in the following useful.)

灯光控制开发原理图PCB成功按理.方便大家进行学习.(MNB)