note: Some articles are very good in http://www.electronics-tutorials.ws/,I share them in the Cnblog so that Chinese hardware engineers can enjoy and learn. ComeFrom:http://www.electronics-tutorials.ws/filter/filter_4.html The cut-off frequency or…
[TI博客大赛][原创]LM3S811之基于PWM的DAC http://bbs.ednchina.com/BLOG_ARTICLE_3005301.HTM http://www.fpga4fun.com/PWM_DAC_3.html One-bit DAC Take one pin of an FPGA, connect a speaker and listen to an MP3? Easy. Here, we'll use a PC to decode an MP3, and then s…
This 125 kHz RFID reader http://www.serasidis.gr/circuits/RFID_reader/125kHz_RFID_reader.htm http://www.serasidis.gr/circuits/RFID_reader/images/125kHz_RFID_reader_schem.GIF I will try to explain with simple words how the RFID works. The ATtiny13 use…
how to generate an analog output from a in-built pwm of Atmega 32AVR microcontrloller? you need a resistor, a capacitor and an opamp. opamp is not really necessary when you are driving a mosfet, but will make life a bit easier. just be aware, that th…
https://www.biostars.org/p/198405/ Quick question is: I have some mapped reads in bam file which have good read quality, but they have sam flag 0x200 which means they didn't pass the vendor check. Should I include them or not in downstream analysis?…
openvpn Section: Maintenance Commands (8)Index NAME openvpn - secure IP tunnel daemon. SYNOPSIS openvpn [ options ... ] INTRODUCTION OpenVPN is an open source VPN daemon by James Yonan. Because OpenVPN tries to be a universal VPN tool offering a gre…
2017年4月16日 一周AnswerOpenCV佳作赏析 1.HelloHow to smooth edge of text in binary image, based on threshold.Something like anti-aliasing by openCv?example 题目:图片去毛刺 优质解答: #; } ) radius; Mat mInput,mOutput; Mat mChannel[]; split(mInput_Bg…