This paper records the process of 433.92 TX RX module design and test,fyi. 1 RX module The circuit shown in Fig 1,The super-heterodyne FM receiver RX with High sensitivity and selectivity. It is equipped by front-end SAW filter that allows an High
Serial [Communication] Description Used for communication between the Arduino board and a computer or other devices. All Arduino boards have at least one serial port (also known as a UART or USART), and some have several. Board USB CDC name Serial pi
Sound card based RFID sniffer/emulator (Too tired after recon.cx to do draw the schematics better than that :) Stay tuned for the next version including Tag emulation.) baudline FFT signal analyzer for sniffing LF RFID tags using our sound card based
1.将程序上传到板子时Arduino IDE提示“avrdude: stk500_getsync(): not in sync: resp=0x00” 网上查遇到这个问题的人比较多,有说驱动问题的,有说IDE设置问题的.具体到我遇到的这个情况,原因是板子上插了RF24无线传输模块(也许线还没有插对),拔掉以后再上传程序就正常了. 2.nRF24L01+无线透传使用问题 Arduino官网上似乎推荐Mirf这个库,遇到一个问题,接收端运行几分钟后停止响应:试了另外一个RF24库,遇到传输不稳定的问
一.AXI DMA介绍 本篇博文讲述AXI DMA的一些使用总结,硬件IP子系统搭建与SDK C代码封装参考米联客ZYNQ教程.若想让ZYNQ的PS与PL两部分高速数据传输,需要利用PS的HP(高性能)接口通过AXI_DMA完成数据搬移,这正符合PG021 AXI DMA v7.1 LogiCORE IP Product Guide中介绍的AXI DMA的应用场景:The AXI DMA provides high-speed data movement between system memor
Linux查看实时网卡流量的几种方式 来源 https://www.jianshu.com/p/b9e942f3682c 在工作中,我们经常需要查看服务器的实时网卡流量.通常,我们会通过这几种方式查看Linux服务器的实时网卡流量. 1. sar -n DEV 1 2 sar命令包含在sysstat工具包中,提供系统的众多统计数据.其在不同的系统上命令有些差异,某些系统提供的sar支持基于网络接口的数据统计,也可以查看设备上每秒收发包的个数和流量. sar –n DEV 1 2 命令后面1 2