Mumakil

# go test -bench .
BenchmarkInlineStruct-8   	2000000000	         0.37 ns/op
BenchmarkGlobalStruct-8   	2000000000	         0.30 ns/op
PASS
ok  	github.com/Mumakil/testing	1.476s

Mumakil

Nexa RF switch protocol reverse-engineered

I connected a 433MHz receiver directly to computer microphone port and powered it on (aka poor man's oscilloscope). Then I used Audacity to record at 48kHz the raw signal coming in and pressed the different buttons on the remote.

A sample of what a single broadcast looks like:

RF protocol

Resolution 48000 Hz - 1 sample is 20.83us

Mumakil

node_modules/*
STATE

Mumakil

{
  "ab": "Abkhazian",
  "abk": "Abkhazian",
  "ace": "Achinese",
  "ach": "Acoli",
  "ada": "Adangme",
  "ady": "Adyghe",
  "aa": "Afar",
  "aar": "Afar",
  "afh": "Afrihili",

Mumakil

Cgo Code examples

Helsinki Gophers May 2016 meetup

Building and running

go build -o demo .
./demo

Mumakil

function be -d "Alias for `bundle exec`"
  bundle exec $argv
end

Mumakil

Elevator Saga program

My elevator control program for the elevator saga game.

Iterations

1. Listen to all button presses and play them back in order.

• Beat level 1.

2. Add going up / down indicators and drive all the way to the specific direction.

• Beat level 3.

Mumakil

node_modules/

Mumakil

class Stream extends process.EventEmitter

  constructor: (@request, @response, @channels, @user) ->
    # other initializing code
  
  get: ->
    # start streaming messages in response to a get request
    # ...
    
    # Normal cleanup after stream is closed

Mumakil

var collectionCount = process.env['COLLECTIONS'] || 1000;
var perCollection = process.env['PER_COLLECTION'] || 1000;
var iterationCount = process.env['ITERATION_COUNT'] || 1000;

var collections = [];
var current, i, j, k, l, r;

for (i = 0; i < collectionCount; i += 1) {
  current = [];
  for (j = 0; j < perCollection; j += 1) {