1602lcd

51单片机采集18B20温度数据发送到蓝牙模块(Send 51 SCM Acquisition 18B20 temperature data to the Bluetooth module)

说明：  简单实现呼吸灯功能，希望能帮到有需要的人，也希望各个大佬纠错(Simple realization of breathing lamp function)

MSP430g2553使用ds18b20进行多点测温的c代码，此为ccs5.1的编写工程文件(MSP430g2553 use ds18b20 c code for multi-point temperature measurement, this ccs5.1 the preparation of engineering documents)

主要介绍串联稳压电源原理及主要的应用电路。(Introduces the principle and the main power supply series application circuit)

本设计是以单片机为控制核心，通过液晶实时显示时钟，并通过LM35D传感器测量温度，将温度值实时显示在液晶上。(The design is based on microcontroller core, real-time via the LCD display clock, and through LM35D sensors measure temperature, the temperature values ​ ​ displayed in real time on the LCD.)

ESP8266 官方无OS 版本 SDK(ESP8266 guangfang SDK)

LED点阵51单片机程序，点阵扫描程序实验，可使用(LED dot matrix 51 single-chip program, dot matrix scanning program experiments can be used)

霍尔速度传感器，电流取样 电流传感器（ACS-712), ST外设标准库为 3.20版本。(Hall speed sensor, a current sampling current sensor (ACS712), ST peripheral standard library version 3.20.)

说明：  1604 lcd 显示屏写数据写命令 ,(lcd display Write data Write Command,Initialization)

名称：门禁模拟 模拟现实中门禁系统，可以输入密码进入也可以呼叫住户，再由住户按下开门按键 实现改密码功能，密码保存在24c02中能保证掉电不丢失密码。八个LED灯分别代表 8家住户，其中开门按键为共用，还带有忘记密码恢复按钮，模拟恢复出厂设置， 显示部分为LCD1602。程序共分为3种模式，分别为 等待输入 密码修改 呼叫住户 3种模式，其中等待输入是主要状态，所以在进入密码修改 呼叫住户模式后如果 长时间没有操作能自己切换到等待输入模式。(Name: Access Analog Simulating real access control system, you can also enter a password to enter the call households, again by pressing the open button households Implement change password function, the password stored in the 24c02 can guarantee non-volatile password. Eight LED lights represent 8 households, which opened the door keys are shared, but also with forgotten password recovery button, analog restore factory settings, Display part LCD1602. Program is divided into three modes, namely, waiting for a password to modify call households 3 modes, which is the main input wait state, so call households entering the password change mode if Their long time operation can be switched to the standby input mode.)