Category Archives: Programming

awka – awk to C converter

Posted on 2018/01/17 by celem

I love AWK. I am among a minority. While many people use awk one-liners in shell scripts, few utilize awk as it was originally intended – a stand-alone language. I used to use it extensively back in the 1990s and … Continue reading →

Posted in Programming | Tagged , , | 2 Comments

Manchester for Arduino

Posted on 2017/03/09 by celem

There are several Manchester Coding libraries for Arduino wireless transfer (See http://tinyurl.com/jh95cju), I have gotten two of them to work satisfactorily for communicating a single byte of data. Both the “Mchr3k” library “http://mchr3k.github.io/arduino-libs-manchester/” and cano64’s library “https://github.com/cano64/ManchesterRF” worked for singly … Continue reading →

Posted in Arduino, Programming, software | 10 Comments

STX-882 / SRX-882 Radio Testing

Posted on 2017/02/16 by celem

I recently did some testing of the STX-882 433HHz transmitter and the SRX-882 433MHz receiver and, after additional tests, updated my original findings. I tested line-of-sight along a road. I performed two tests using Arduino NANOs and two laptops, shown … Continue reading →

Posted in Arduino, Electronics, Programming, software, wireless | Tagged , , , | 3 Comments

An inexpensive Software Enabled Pseudo-Transceiver for Arduino

Posted on 2016/11/20 by celem

Recently I taught a brief, three hour long, Arduino 101 course to some fellow members of the Western North Carolina Linux Users Group (WNCLUG). One of the three lessons in the course was for the students to pair off and … Continue reading →

Posted in Arduino, Electronics, Programming, software, wireless | Tagged , , , | Leave a comment

Universal programmer dusted off

Posted on 2016/07/28 by celem

Lately, I have increased my microprocessor/gadget activity after a hiatus/slow down. A project that I have been (slowly) working on was developed and debugged on an Arduino NANO but the final target is a surface mounted SOIC ATtiny85-20SUR operating at 3-Volts. … Continue reading →

Posted in Arduino, computer, Electronics, hardware, Linux, PCB Etching, Programming | Leave a comment

Revisiting+ WLX-652 e/w SnakeOS

Posted on 2016/06/26 by celem

NOTE: This was originally a May, 2015 post but I just revised it today, June 26, 2016. Back in 2012 I wrote about the SnakeOS flashed WLX-652 device ( See Original Post ). As I said then, I actually purchased … Continue reading →

Posted in ARM, Electronics, hardware, IP-Camera, Linux, Programming, software | 3 Comments

SMS from Arduino

Posted on 2016/04/06 by celem

A few weeks ago I was chatting with my mail carrier who is also a beekeeper. I mean LOTS of bees with some hives in remote locations. He has a friend that is working on a system that weighs hives and … Continue reading →

Posted in Arduino, cellular, Electronics, hardware, Programming, SMS, wireless | 1 Comment

EASYCAP analog to digital Video Encoder for Linux

Posted on 2016/04/04 by celem

A couple of days ago while attending a meeting of the Western North Carolina Linux Users Group (WNCLUG) someone asked if anyone knew how to get an EASYCAP analog to digital Video Encoder fob working on Linux. I’ve posted a photo … Continue reading →

Posted in Electronics, Linux, Programming | 1 Comment

A refresh of my revisit of the WLX-652

Posted on 2015/05/23 by celem

My IP-Camera image gallery solution described in my PREVIOUS POST was working well for browsers other than Firefox. Firefox doesn’t handle cache like other browsers. The retrieved images were cached and even a page refresh would not retrieve a new … Continue reading →

Posted in ARM, Electronics, hardware, IP-Camera, Linux, Programming, software | 1 Comment

Inexpensive Web Publishing of Arduino/ARM Sourced Data – home automation webserver

Posted on 2013/02/17 by celem

I started out working on a WiFi client to use with the the setup of the Ethernet Module Post. However, the idea has morphed into something else – a method for inexpensive web hosting of Arduino or ARM system data … Continue reading →

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