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NiMH charger question
I have been given the remains of a toy R/C airplane which runs (ran) on NiMH batteries. It gets recharged in the field for a few minutes from a battery pack, then supposedly flies...
Fri. Sep 13, 2013 - 10:56 PM
How smart is this thing likely to be?
I was in the grocery store yesterday and they had some closeout Christmas stuff, so I bought a toy light and charger for $1. Taking it apart it has two or so square inches of...
Wed. Jan 25, 2012 - 10:42 PM
Wanted: old geezers and their opines
Around Christmas I found out that Washington State has a law requiring colleges and universities receiving public funding to waive tuition for us in the over 60 crowd. Up to 2...
Fri. Mar 4, 2011 - 03:39 AM
AGC for telephone recording
A couple of times a year I have a telephone consultation that I record and transcribe for both of us (with the permission of the other person). Over the years I have used a couple...
Sat. Nov 13, 2010 - 06:46 AM
Sure Electronics AVRDEM2 board code
I've posted a project giving example code for all the goodies on a Sure Electronics AVRDEM 2 board (about $26, shipping paid, if you watch eBay). That includes a USART, switches...
Tue. Sep 21, 2010 - 07:15 AM
Butterfly LCD & damage from alternate pin use
I had someone ask me a question that I need to refer on to the EEs. In the Butterfly, the LCD segment pins are shared with general I/O port pins, but the LCD is hard wired in...
Wed. Jul 22, 2009 - 07:54 PM
[TUT] So I got a Butterfly - Now what?
Attached is a little introduction to the Butterfly for new users. It includes the way to use AVR Studio to upload hex files via the Butterfly's serial bootloader, and some...
Thu. Jul 16, 2009 - 11:18 PM
[TUT] [C] Stepper motors - real time dynamic ramping
I came across a nice article about dynamic ramping with some PIC example code, and got to playing with it. One thing led to another, and here is a restatement of the paper's...
Wed. May 6, 2009 - 02:40 AM
[TUT] Interfacing 2 bit rotary encoder switches
This is a discussion of well behaved (YMMV), interrupt driven, rotary encoder switch interfacing.
Tue. Feb 24, 2009 - 03:12 AM
[VB6][SOFT][CODE] Smiley's USB Thingie and VB6
As many of you know, Smiley (in collaboration with Jesper) has produced what I've been calling the USB Thingie based on the FTDI FT232R chip. Smiley has written a book on its use...
Tue. Mar 4, 2008 - 11:43 PM
Hot Wheels Radar Gun serial interface
I posted a project yesterday showing how the Hot Wheels Radar Gun works and implementing a serial interface for it. Since that time a double epiphany has struck me, one for an...
Tue. Oct 9, 2007 - 02:02 AM
Problem with ISP in existing hardware
As some of you know, Daqq pointed out the Mattel Hot Wheels Radar Gun which I have proceeded to spend way too much time on. I have it reverse engineered and am ready to give all...
Mon. Sep 24, 2007 - 09:07 AM