led-key

32X16LED汉字点阵显示屏(atmega16) - 单片机仿真 - Proteus仿真(32by16LED Chinese characters dot matrix display microcontroller)

说明：  模数转换芯片ads1100 读写程序 已应用于产品，可以直接使用(Analog-digital conversion chip to read and write ads1100 procedures have been applied to products, direct access to)

PN532的上位机软件库，包括应用说明文档(PN532 PC software libraries, including the application documentation)

AT89C51SND1C方案mp3资料包括源程序与原理图(AT89C51SND1C program information, including source code and mp3 schematic)

光伏电池阵列输出功率受光照强度和温度变化的影响，因此最大功率点跟踪（MPPT）技术广泛应用于光伏系统中。在所有最大功率点(MPP)控制策略中，扰动观察（P&O）MPPT算法因易实现被广泛应用，然而它的缺点是在稳定工作状态下工作点通过MPP 时会导致能量振荡损耗，并且在光照强度或温度发生突变时表现较差的动态响应。在本文中，提出一种改进型变步长扰动观察MPPT 算法，此方法依据工作点动态调整步长变化，与传统固定步长方法比较，本文提出的方法(Photovoltaic array output power is affected by light intensity and temperature change, so the maximum power point tracking (MPPT) technique is widely used in light volt system.In all of the maximum power point (MPP) control strategy, the disturbance observation (P&O) MPPT algorithm is widely used because of easy to implement, but its drawback is that under the steady working state working point by MPP will cause energy loss of oscillation, and the mutations in poor light intensity and temperature of dynamic response.In this article, the paper puts forward a modified variable step disturbance observation MPPT algorithm, this method is based on the working point dynamic adjustment step change, compared with the traditional fixed step length method, the proposed approach)

基于51单片机的十字路口交通灯设计，有keil工程文件，proteus仿真，c语言程序，原理图及pcb图纸。(Based on 51 single-chip crossroads traffic lights design, keil project files, proteus simulation, c language program, schematics and pcb drawings.)

ADI芯片CM403、CM408的片上UART例程，包括相关寄存器的设置，有意向使用此类芯片的朋友可以借鉴一下；(ADI chip CM403, CM408 chip on the UART routines, including the relevant register settings, with the intention of using this chip can learn friends )

实现0.91寸，IIC OLED屏幕驱动程序(Implementation of 0.91 inch, IIC OLED screen driver)

基于单片机的红外遥控系与测距系统，包括车载雷达测距等(Infrared remote control system based on SCM and ranging system)

can总线基于j1939-21协议的故障码多包发送程序( CAN fault code data reorganization and multi package launch )