Category Archives: wireless

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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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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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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Is a $30 smartphone worth buying?

Is a $30 smartphone worth buying? I recently purchased a Posh Orion mini blue Model s350a smartphone. Although Posh Mobile lists a MSRP of $80 I cannot imagine anyone paying that much. It is readily available on eBay for under … Continue reading

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A Revisit of the PT2262 PT2272 with Arduino and r06a Receiver

A year ago, on July 19th, reader Jeff posted that he had an inexpensive Chinese motion detectors that used the 2262 chipset. He was having some trouble getting it working with the r06a receiver as in my July 2012 post … Continue reading

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Rooting my SmartPhone

Most Android smartphone users have abandoned the 3G platforms in favor of newer platforms but many people, like me are staying with 3G for the foreseeable future. In my case, I use an unlocked HTC Droid Incredible 2 with Verizon … Continue reading

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Replacement Cheapo Cell Phone Battery – the Good and the Bad

[Update at end] I currently use an HTC Droid Incredible 2 smartphone. I like many things about the phone but I hate the battery life. Battery life is less than my previous Samsung phone and I set about improving it. … Continue reading

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SMS Messaging from TL-WR703N

While working with the TL-WR703N router discussed in the post titled “Inexpensive Web Publishing of Arduino/ARM Sourced Data – home automation webserver” I ran across a post on the OpenWRT wiki titled “Send SMS or Email using 3G/GSM modem“. This … Continue reading

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Cheap way to add SMS to a Linux PC or microcontroller or Arduino etc.

With a long term goal of being able to add the ability to send/receive SMS text messages, over cellular telecommunications, to/from an Arduino-type remote device, I read the blog of New Zealander Brody Radford with interest. His blog explains the simple … Continue reading

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Wireless Remote Control PT2272 for Arduino

UPDATE: In addition to this post, there is also a more recent one titled “A Revisit of the PT2262 PT2272 with Arduino and r06a Receiver” If you find value in this post I believe that you will also like the … Continue reading

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