jiaotongdeng

42-ps2键盘LCD1602液晶显示.对于初学学习硬件开发的同学们，有很大的帮助哦。(42-ps2 keyboard LCD1602 LCD display. For the beginner to learn the hardware development of students, very helpful Oh.)

robot Puma 365 controlled by PID Fuzzy

Energy efficiency is the most important design goal for wireless sensor networks (WSNs). In this paper, we propose an energy-efficient cooperative MIMO scheme, which combines energy-efficient LEACH (EE-LEACH) protocol and cooperative MIMO. We name it as EE-LEACH-MIMO scheme. EE-LEACH is an improved LEACH algorithm, in which the network is partitioned to sectors with equal angle for avoiding the distribution non-uniformity of cluster heads. In EE-LEACH-MIMO scheme, the location and the residual energy of each node are considered when the cluster heads for clustering and cooperative nodes for MIMO system are chosen. For comparisons, LEACH, EE-LEACH, the simple cooperative scheme with LEACH and MIMO (LEACHMIMO), and EE-LEACH-MIMO scheme are simulated. The result shows that EE-LEACH-MIMO scheme can well balance the network load, save energy and prolong the network lifetime

晟矽微stepover系列示例代码，非常适合晟矽微单片机学习入门者。简单易学。(Sheng silicon micro stepover series sample code, very suitable for single-chip silicon micro Sheng learning beginners. Easy to learn.)

用C语言编写的温度采集程序，可以用于C51单片机的开发(Temperature using C language acquisition program, can be used for C51 MCU development)

关于一个滑块显示的程序，可以通过滑块调整实现各种功能(About a slider and its function)

步进电机28BYJ48型四相八拍电机，电压为DC5V—DC12V。当对步进电机施加一系列连续不断的控制脉冲时，它可以连续不断地转动。每一个脉冲信号对应步进电机的某一相或两相绕组的通电状态改变一次，也就对应转子转过一定的角度（一个步距角）。当通电状态的改变完成一个循环时，转子转过一个齿距。四相步进电机可以在不同的通电方式下运行，常见的通电方式有单（单相绕组通电）四拍（A-B-C-D-A。。。），双（双相绕组通电）四拍（AB-BC-CD-DA-AB-。。。），八拍（A-AB-B-BC-C-CD-D-DA-A。。。）(Stepping Motor 28BYJ48 four-phase eight-phase motor, the voltage DC5V-DC12V. When a series of continuous control pulses are applied to the stepper motor, it can be continuously rotated. Each pulse signal corresponds to the stepper motor of a phase or two-phase winding power state change once, also corresponds to the rotor through a certain angle (a step angle). When the change in the power-on state completes one cycle, the rotor turns one pitch. Four-phase stepper motors can be operated in different power-up modes. The common power-up modes are: single-phase winding power (ABCDA ...), double (dual-phase winding)-DA-AB-...), eight beats (A-AB-B-BC-C-CD-)

MSP430g2553实现CC1101无线通讯。 最近有个项目，使用CC1101无线传输控制,刚开始做使用MEGA8实现，当晚也没有考虑功耗的问题，但最后项目要求用电池供电，这就出现问题了。无线在发射时的系统的整个功耗在16ma左右，这样一算，不论实用什么电池也不能实现一个月的工作时间。但是要实现，就要一步一步的调试。第一部做的是把MEGA8的供电降到3.3V, 这样的系统的功耗能够降低一半，但是总的时间还是不能实现；第二部把系统的DC/DC稳压片替换成低电流输出、低功耗的稳压电源。这样两步下来，系统功耗降到8ma，可惜的还是不能实现。再进一步，让无线间隔性工作，工作30S，停30S。这样功耗又进一步下降，但是用电池供电的话，只能维持10天左右，要想实现30天，不太可能啊。 CC1101原理图实验代码 拿到LaunchPad后，第一想到是将代码移植到上面，看看系统的功耗。今天上午很容易移植成功了，一没功耗，让我看到了希望，在没有采取任何降低功耗的措施下，系统的功耗是4ma，无线一直在工作状态。太好，如果采取功耗设计，我想一定能够实现项目要求，期待能够调试出更低的功耗。 (The CC1101 Schematic experimental code)

AD9851中文资料，为pdf格式，资料比较详细，希望对需要者有所帮助。(AD9851 Chinese data)

51单片机驱动74ls164程序 (51 Microprocessor 74ls164 program)