Accelerometer with Filters – How to deal with noisy data

Recently, I am busing on a project which need to measure the distance through an accelerometer’s readout. From the first impression of this project, I thought that it might be very simple to deal with. But the truth is that we need to

STM32 Multiple USART Driver

Recently, I am developing a small project which utilize many many uart device. The core controller chip is a STM32 Cortex-M3 Chip which has 5 UARTS.  In order to make full use of these UART interface, I just customized a small USART Driver which can make full control of 5 UARTS.

Due to STM32’s restrictions , only UART1 to UART 4 has the ability of DMA Write, so

EDN Design Ideas – Download Them All from 1999 to 2009

Recently, My favourite magazine EDN have changed their website style. But it caused many problem. Now I cannot find new design ideas from the website.  So I just make a google , it tell me that they just hidden the design ideas to magazine issue page. here is the link.

But for your convience, I uploaded all design ideas from Year 1999 to Year 2009, 11 years in all.  You can download them all

[Link]1999-2009.7z

Very First Post of My Very First Blog

Hi, everybody. This is a blog site which mainly focus on the Technical stuff ranges from electronics design example, principle behind a circuit , how to program, and so on.

My Name is Chenxiang Hsu. And I am an electronics designer which work in a small company dealing with hardware design job.  If you wanna to talk with me, just write a email to me