Category Archives: Electronics

STX-882 / SRX-882 Radio Testing

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

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A Tiny but Good Boost Converter

With nothing connected to the CE012’s outputAs I continue to experiment with voltage boost converters I was intrigued by some Chinese DC-DC Boost Converter modules. There are several different types and module configurations, depending upon the manufacturer and chip type. … Continue reading

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Garden Light Redux – Power Supply

NOTE: This post is a work in progress. As long as it ends with “To be Continued”, please check back occasionally for updates. The Garden Solar Light is a recurring interest of mine. It is often referred to as a Joule Thief but it … Continue reading

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An inexpensive Software Enabled Pseudo-Transceiver for Arduino

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

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Programming the ATTINY85-20SUR

This post ties together my two previous posts, “ATtiny85 SOIC chip Program Adapter” and “Universal programmer dusted off“. I inserted the ATTINY85-20SUR nested in the SOIC Adapter Socket OTS-20-1.27-01,  plugged it into my DIY Universal Programmer socket and connected it up to my USBasp programmer. … Continue reading

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ATtiny85 SOIC chip Program Adapter

When I purchased some surface mount ATtiny85 microcontrollers I didn’t realize that Atmel sold them in several widths, so I purchased the incorrect size SOIC programming adapter that would have enabled me to program the chip prior to soldering it … Continue reading

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Universal programmer dusted off

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

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Dubious eBay SD Cards – Caveat Emptor

Over the years, I have purchased a number of SD cards through eBay – often shipped directly from China. Today I was reading the setup instructions for a recent acquisition – a PINE-64 board. Pine-64 was adamant that the micro-SD … Continue reading

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Revisiting+ WLX-652 e/w SnakeOS

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

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

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