I’m not sure if I’ll ever get around to posting on here, but I made this blog for two reasons: 1) to reserve the mwwalk name since that’s the name I use for everything and I may want it in the future. 2) to occasionally blog about the projects I’m working on. It’s a way for me to document what I’ve done without having to worry about backing it up while also sharing it with others. No promises on the frequency of updates but here’s hoping. 
The Wandering Engineer 
Great job !!!!
hello was wondring i want to make an IR array of leds any ideas o r way to make it thnaks david hi power leds
It is very rare that I find someone who can write so clearly, precisely and almost without typographical omissions. Thank you so much for your efforts. The typographical omission I found thus far is:
(information here should transfer easily [to] other ATMEGAs as well.)
Thank you for your excellent tutorial on pin change interupts. It is the best of many I read while doing battle.. my main problem turned out to be mismatches between the arduino core library dealing with all types of interupts and the sleep library I had installed….I tried three different “lo power” libraries and all threw the dreaded ” was not defined in this scope” compiling error…for pcmsk and other interupt related items… Finally I found this one and it works with your code… my pro trinket goes to sleep and wakes up perfectly.. Thanks again…The sleep library that works with arduino pin change interupts using your code in your article about interupts… is….. …..found it on “GitHub”
Sleep_n0m1.h ?