Received another sample from Noritake-Itron. This time is 16×2 display command with HD44780 LCD. It has serial interface, similar to SPI and commands same as well-known HD44780. This company was founded in 1904 and you can feel it. Looks like old school to me, very nice packing, attention to details and manual on paper not in digital form. Everything is very well documented. Also they have bunch of libraries for different platform. I don’t think porting to new chip will be big issue. I really love this company and this display.
I received sample from Noritake Itron company – VFD (vacuum fluorescent display). Works in -40C – +80C temperature range, still readable in daylight but expensive. On DigiKey this display cost $83. Packaging and documentation looks like old school, very solid and reliable.
An American tourist is visiting Russia, and he’s talking with a Russian about the fact that not many people in Russia own cars.
American: I can’t believe you don’t have cars here! How do you get to work?
Russian: We take the bus, or the subway. We have public transportation everywhere.
A: Well, how do you go on vacations?
R: We take the train.
A: Well, what if you want to go abroad?
R: We don’t ever want go abroad.
A: Well, what if you really HAVE to go abroad?
R: We take tanks.
‘The nine most terrifying words in the English language are, ‘I’m from the government and I’m here to help.’
New project in my hands. I got pretty much all parts, now is time to find what parts I missed, assembly and test. Lots of photos down there.
Continue reading “Copter”
I was shopping in Walmart on last Saturday and when I returned to my car pushing cart and holding my daughter I found that.
After quick investigation I found something in my tire.
I put my daughter in car seat (and entertain her), called to my wife for backup and removed tire for repair. It cost me $10 here, in Walmart. Lots of fun, but not so much as when my tire blew at 60 mph.
Next step in my current electronics project, after idea and schematics, is prototyping. Here is working prototype assembled on breadboard using lab equipment (like power supply etc). In top-left corner is zero-level cross detector, it converts any periodic signal with amplitude from 1 to 5V into square signal with 0 to 5V amplitude, pretty much digital one.
In bottom right corner Atmel’s ATTiny 2313 that measures frequency of this signal and shows it on display.