Zack Voase zacharyvoase
zacharyvoase
/ morse.ino
Last active
December 14, 2015 08:49
Make your Arduino speak Morse code. Hook it up to an LED or a buzzer in series with a small resistor, and then write in text over the serial port. Done. This gist now includes an object code dump.
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| int led_pin = 2; | |
| #define PERIOD (100) | |
| void setup() { | |
| pinMode(led_pin, OUTPUT); | |
| Serial.begin(9600); | |
| } | |
| void writeMorse(char *code) { | |
| int i = 0; |
pepijndevos
/ lisp.py
Created
September 10, 2010 09:56
— forked from dahlia/lisp.rb
5 minutes Lisp in Python
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| # 5 minutes Lisp in Python | |
| # Pepijn de Vos <http://pepijndevos.nl> | |
| # | |
| # Inspired by 30 minutes Lisp in Ruby | |
| # http://gist.github.com/562017 | |
| # | |
| # This Lisp does not read or parse anything at all. | |
| # A generator and a Decorator are abused to run sexps. | |
| # | |
| # Usage: |
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| module SXP | |
| module Grammar extend Parallax::Grammar | |
| LPAREN = char('(') | |
| RPAREN = char(')') | |
| INTEGER = term(/^([+-]?\d+)/) { |s| s.to_i } | |
| STRING = term(/^"([^"]+)"/) { |s| s } | |
| SYMBOL = term(/^([\w\d_-]+)/) { |s| s.to_sym } | |
| Atom = INTEGER | STRING | SYMBOL | |
| List = LPAREN << +Atom >> RPAREN |