恒丰瑞克2410开发板的电路板原理图，对做嵌入式硬件设计的朋友有一定的参考价值。...

我行我素计数器 v1.0本程序由“资源搜罗站”制作和提供，制作的不错，不仅有普通的记数功能，而且还带有统计分析功能。具体功能如下： 1，统计分为天，时间段，月，星期。 2，可记录访问者的系统信息。 3，查看最近访问者的IP地址、系统信息等等。-please Counter v1.0 of the procedures "resources collected station" production and delivery of good production, not only the general function of the count, but also with statistical analysis functions. Specific functions are as follows : a, statistics divided into days, hours, months, weeks. 2, visitors can record the information system. 3, see a recent series of IP addresses, information systems and so on.

介绍一种采用半桥电路的开关电源，其输入电压为交流220V±20％，输出电压为直流4～16V，最大电流40A，工作频率50kHz。重点介绍了该电源的设计思想，工作原理及特点。-Introduction of a half-bridge circuit using the switching power supply, the input voltage for AC 220V ± 20, output voltage of DC 4 ~ 16V, maximum current 40A, operating frequency of 50kHz. Focuses on the design of the power of thought, working principle and characteristics.

2006年哈尔滨工业大学嵌入式系统教学课件,希望感兴趣的看一看-2006 Harbin Industrial University Embedded System courseware, hoping to look at the interest

最新的激光测距仪应用,激光测距仪应用 -Application of the latest laser range finder, laser range finder application

基于UML的数字书籍管理系统的分析与建模 供大家参考-UML-based management system for digital books, Analysis and Modeling

spi方面的文章，不错的-20 articles on the subject, good

Document For The Sinewave Inverter

心率指心脏每分钟搏动的次数, 它能够反映心脏的工作状态。正常心率决定于窦房结的节律性, 成人静息时约60～100 次/ min , 平均约75次/ min。心率可因年龄、性别及其他因素而变化。初生儿心率约130 次/ min , 随年龄增长而逐渐减慢, 至青春期乃接近成人的心率。女性心率比男性稍快 运动员心率较慢。成人安静心率超过120 次/ min 者, 为心动过速 低于40 次/ min 者为心动过缓。心率受植物性神经和体液因素调节。-Heart rate means the number of pulse per minute, it can reflect the work of the state of the heart. Normal heart rate determined by the rhythm of the sinoatrial node, resting adult is about 60 ~ 100 times/min, an average of about 75 times/min. Heart rate may be due to age, gender and other factors change. Heart rate of newborn infants of about 130/min, growth has gradually slowed down with age, to adolescence adult heart rate is near. Women slightly faster rate than men athletes slow heart rate. Quiet adult heart rate over 120 times/min, and for the tachycardia less than 40 times/min for bradycardia. Heart rate by the plant regulate neural and humoral factors.

PIN DESCRIPTION PIC16 & PIC18 MICROCHIP

ECG related notes. clearly states the need of right leg drive circuit.