Showing posts with label binary counter. Show all posts
Showing posts with label binary counter. Show all posts

Wednesday, July 30, 2014

ATtiny85 DIY littleBit

Introducing the ATtiny85 DIY littleBit and the "counter bit".

I programmed the ATtiny85 chip using MIT's Hi Low Tech post.  I plan to figure out how to program it with the Arduino bit, which is a Leonardo, and I'll post that project on the littleBits page.  I currently use the ATtiny85 with one input and four outputs, all in littleBits style (VCC, Signal, GND).  Here is a clip showing a program that blinks led's in sequence at the touch of a button:
 
Today, partly in response to a dreamBit request by a user on the littleBits website, I coded the ATtiny85 to count inputs in binary with 3 led's up to the number 5.  I could have counted up to 7, but I like the number 5.  When the counter reaches 5, it sends an output to the fourth output for a couple seconds.  I used a buzzer to demonstrate. 
Here is a clip of the counter bit: