TFT3.5

利用easyx写的矩阵键盘仿真，希望可以给爱好者提供参考。(Use easyx wrote matrix keyboard emulation, hoping to provide a reference for enthusiasts.)

LCD初始化代码，能够点亮SSD2119 driver IC液晶屏(init LCD)

stm32f4串口通信,STM32F4与STM32F1在ADC方面的区别(stm32f4 usart)

stc89c52测试DHT11并用1602显示(DHT11 stc89c52 test and 1602 showed)

利用TI公司生产的ARM款单片机MSP432实现硬件I2C，具有更加强大的性能(ARM chip microcomputer MSP432 produced by TI company is used to realize hardware I2C, which has more powerful performance)

说明：  对一路工频交流电（频率波动范围为50 ±1Hz、有失真的正弦波）的电压有效值、电流有效值、有功功率、无功功率、功率因数进行测量的数字式多用表。通过LCD12864显示(Frequency of the AC all the way (the frequency of fluctuations in the range of 50 ± 1Hz, there is distortion of the sine wave) RMS voltage, RMS current, active power, reactive power, power factor measurement of the digital multimeter. LCD12864 show through)

此代码为stm32将外部flash如w25q32模拟成U盘，对内部数据进行读写操作，此工程已经验证通过，希望对大家用一定的帮助(This code is stm32, which simulates external flash such as w25q32 into a U disk to read and write internal data. This project has been verified and passed. I hope it will be of some help to you)

说明：  基于Tm4C123G的三相SPWM，能够实现DC_AC的变换 可结合现在流行的微电网和泛在电力物联网技术(Three-phase SPWM based on Tm4C123G can realize DC_AC transformation. It can be combined with the popular microgrid and ubiquitous power Internet of things technology.)

pcf8591原理图（adda转换模块开发）(pcf8591 Schematic (adda conversion module development))

Proteus仿真：AT89C51RD2 & HDG12864F-1 & HDG12864F-3显示一幅图片；分别是串口通讯控制 和 并口通讯控制；(Proteus simulation: AT89C51RD2 & HDG12864F-1 & HDG12864F-3 shows a picture were serial communication control and parallel communication and control )