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nrf51822 2.4g模块+uart+radio收发(nrf51822 2.4g+ uart+ radio transceiver module)

说明：  可以通过图片制作自己想要的东西,大家可以自己制作U盘。(You can make what you want through pictures, and you can make your own U disk.)

Arduino Library for Freematics OBD-II UART Adapter Distributed under BSD License

双步进电机综合控制 用于51单片机 (Dual stepper motor integrated control)

C51下温度传感实验 检测温度，并用数码管显示出来 。(C51 experimental testing temperature of the temperature sensor and a digital control display.)

PIC模拟两路PWM输出,采用中断加按键10MS扫描可调占空比功能,解决模拟PWM调占空比冲突(PIC simulation of two PWM outputs, with adjustable scan interrupt duty cycle plus function keys 10MS resolve conflicts analog PWM duty cycle modulation)

analysis time series in R language. parameter estimation & forecast & scenario generation.

Can总线协议2.0版本，很适合Can相关的开发者使用，推荐下载()

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PIC16F877A的ht6221红外解码程序，测试通过(program based on pic16f877a，pass)