Hobby Engineering Archive

Bought an Arduino kit recently and have done just a little bit with it, but not much.  One of the projects I’m looking at uses an ATTiny85 to reduce CPU for a 433MHz receiver, so I bought some ATTiny85’s and will need to program them.  That can be done using Arduino 1.6 – reference article here.

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Stellar garage organization

Posted July 3, 2016 By Landis V

This guy has the best garage organization I have ever seen.  Definitely will be taking some ideas from this page for tool and garage organization.

http://www.garagejournal.com/forum/showthread.php?t=174553&showall=1

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http://www.hoffmanonline.com/stream_document.aspx?rRID=233309&pRID=162533

Good read.

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ARDUINO SOLAR CHARGE CONTROLLER (Version-1)

Posted March 13, 2015 By Landis V

http://www.instructables.com/id/ARDUINO-SOLAR-CHARGE-CONTROLLER-PWM/

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Recent mini-PC/router devices of interest

Posted January 5, 2015 By Landis V

RockTek RT-A1, priced at $65 on NewEgg Flash on 1/5/15.  Quad core, HDMI output up to 2048 x 1536.  Appears to be only a 10/100 ethernet, but has a couple of USBs to which GigE adapters could be connected for up to 480Mbit theoretical throughput.   Also has a composite video out, which could theoretically be paired with one of these 4.3″ LCD “backup camera” displays for a convenient method to apply updates, etc.  Caveat is that there does not seem to be much hackery on it to run Linux natively, but it is tempting to pick one or two up to play with and see what could be done.
Also ran across this Foxconn AT-5570 (manufacturer page here, also on sale at NewEgg Flash for $90, though it would need to have RAM and storage added).  Higher price and lower performance would make this somewhat less appealing.

The Foxconn was perhaps most interesting because it led me to the Jetway motherboards with multiport ethernet daughterboards.  This auction page had a six port GigE model.  The four port daughterboard is the Jetway ADE4RTLANG, and several of the Jetway mini-ITX mainboards include dual ethernet ports natively.  Quite a bit higher priced, but might prove useful at some time.

Also interesting was the Odroid-C1 currently selling at the same price as the RPi, and their intro/getting started kit with the required SD card as well as a breakout board and some basic electronic components to get familiar with the device is on sale for under $70 through January 7th when paying with PayPal.  The C1 is, I believe, almost pin-compliant with the header on the RPi.  It has a quad core 1.5GHz processor, 1GB DDR3, and a gigabit ethernet interface.

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http://linuxgizmos.com/ringing-in-2015-with-40-linux-friendly-hacker-sbcs/

Pretty good board list, including a couple with dual ethernets, which is something I’ve been wanting to have.

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http://archlinuxarm.org/forum/viewtopic.php?f=53&t=6040

I picked up a couple of POGO-V4-A1-01’s from eBay for $7.50 apiece shipped and thought I might try using them for sensor devices and/or generic simple alerting systems.  The hardware mod listed in this forum will be very helpful in adding another interface to the device, as my understanding is that it will only boot from the USB or the SATA port, and the device will be much more useful if the USB port is available for peripherals.

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