Ray Hernandez hernan43
hernan43
/ annoy-o-bug.ino
Last active
April 28, 2018 21:42
I took various bits and pieces from the included projects and combined them to create an Annoy-O-Bug that conserves power by using the ATTiny85's built in watchdog timer.
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| /* | |
| ATTiny85 Annoy-O-Bug | |
| This is equal parts: | |
| https://create.arduino.cc/projecthub/arjun/programming-attiny85-with-arduino-uno-afb829 | |
| https://www.hackster.io/AlexWulff/the-annoy-o-bug-a-chirping-light-up-throwie-37e58a | |
| https://github.com/sparkfun/H2OhNo/blob/master/firmware/WatchDogTest/WatchDogTest.ino | |
| https://github.com/SpenceKonde/ATTinyCore | |
cantino
/ base64-md5-test.rb
Created
February 28, 2019 23:41
Four ways to compute the base64 md5 checksum used by ActiveStorage
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| require 'digest' | |
| # From activestorage | |
| def compute_checksum_in_chunks(io) | |
| Digest::MD5.new.tap do |checksum| | |
| while chunk = io.read(5242880) | |
| checksum << chunk | |
| end | |
| io.rewind | |
| end.base64digest |
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