LED lamps are (not) forever
Two weeks ago I wrote about my experience with special price offers for LED bulbs at Bauhaus. What I didn't write was that I then just went to the other…
Which direction are the black and white balls moving?
Optical illusions
On National Geographic there is right now a science show called Brain Games. Even though a lot of the contents is not new, there was one optical illusion which really fascinated me:
Look at the full image, look at the red circle, look at the yellow circle…
(image found at Mighty Optical Illusions)
My very own AVR ISP adapter on a breadboard.
AVR ISP breadboard adapter
Breadboards are great! I mean the solderless breadboard type which you can get everywhere now for almost no money. I use them all the time to prototype electronics circuits and…
Special offer on LEDs at Bauhaus: new price twice as high as before!
special offer at Bauhaus
Today I was at Bauhaus in Uppsala, just browsing, not looking for anything special. Close to the exit there was a table with LED light bulbs which were obviously taken out of the regular assortment and re-labelled with new prices.
Usually you would expect a bargain – and since I am somewhat sold to LED light bulbs I had a close look.
Well it was not worth the looking – these were still quite overpriced as compared to the average shop price, not to mention the internet price. but then I saw one very special offer:
The final board on a breadboard for testing. The bits are controlled in the background by a dip-switch.
Do you need a byte?
My latest Instructable is on the design of a breakout board to view the state of up to eight bits in a breadboard circuit. I don't fell I have the…