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用于水文频率计算的目估适线法,程序基于φ值表查询计算(Mesh used to calculate estimates of hydrological frequency fitting method)

基于avr单片机，1302芯片实现时钟，单字节读写(avr atmega16 ds1302)

CD4051/CC4051是单8通道数字控制模拟电子开关，有三个二进控制输入端A、B、C和INH输入，具有低导通阻抗和很低的截止漏电流。(CD4051/CC4051 is single channel 8 digital controlled analog electronic switch, there are three binary control input A, B, C and INH input, has low conduction resistance and very low by leakage current.)

polymer tutorial, will help to ensure knowledge about it.

说明：  设计报告和设计方案，相信对参加飞思卡尔竞赛的有帮助。(The design report and design plan are believed to be helpful for participating in the Freescale Competition.)

Energy harvesting broadcast channel with inefficient energy storage Energy harvesting broadcast channel with inefficient energy storage Energy harvesting broadcast channel with inefficient energy storage

用STM32做的FFT以及IFFT程序，MDK开发环境，带有TFT驱动显示程序(STM32 do with FFT and IFFT program, MDK development environment with TFT display driver program)

avr ATmega128 PWM输出OCR1A=0x40 //OC1A 输出 25 占空比 OCR1B=0x80 //OC1B 输出 50 占空比 OCR1C=0xc0 //OC1C 输出 75 占空比(avr ATmega128 PWM)

os-II源程序 目录(os- II source directory)

内含C文件及Proteus仿真文件 矩阵键盘输入密码，初始密码为12345678,每按一次键有短滴声,输入密码正确液晶屏显示正确信息并且电机转动，输入密码错误会发出警报，LED灯闪烁，复位取消警报，0--9号键为数字键,10号键为确认键，11号键清除键清除所输入密码或取消修改密码，12、13、14号键实现修改密码功能。(Containing C file and Proteus simulation file Matrix keyboard input password, the initial password is 12345678, every time a key is pressed, there is a short sound, the correct input password LCD screen displays the correct information and the motor rotates, the input password error will send an alarm, LED flashes, reset and cancel the alarm, 0-9 keys for the digital key, 10 keys for the confirmation key, 11 keys to clear the input secret. Code or cancel password modification, key 12, 13, 14 to achieve password modification function.)