How I used a quad-NAND gate to level shift from 3.3v to 5v logic.
I recently came across a couple of small OLED displays in my "ebay box", which I had forgotten I bought. These things are really neat. They are small, low power, lightweight 128x64 displays, that only cost around $4-5. They use the I2C protocol, which makes it pretty painless to get something up and running on... Continue Reading →
Background We have a problem at my house of the garage door being left open at night. To solve this problem, I want to implement a system that will detect when the door is opened or closed, and after a certain time of day will close it automatically if there hasn't been any activity. ... Continue Reading →
Forward This project is from quite awhile ago (last year some time). I wanted to write a little bit about it just for my own sake, just so I don't completely forget how I did certain things. This won't really be a how-to, mostly because: I would say about 80% of this is just... Continue Reading →