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Rafael M. rafaelmaeuer

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@rafaelmaeuer
rafaelmaeuer / urlencode.sh
Last active October 9, 2017 13:14
How to urlencode data into a URL, with bash or curl - From https://stackoverflow.com/questions/37309551/how-to-urlencode-data-into-a-url-with-bash-or-curl
urlencode() {
python -c 'import urllib, sys; print urllib.quote(sys.argv[1], sys.argv[2])' \
"$1" "$urlencode_safe"
}
@rafaelmaeuer
rafaelmaeuer / txt-to-array.js
Last active October 9, 2017 13:15
node.js: read a text file into an array - From https://stackoverflow.com/questions/6831918/node-js-read-a-text-file-into-an-array-each-line-an-item-in-the-array
var fs = require('fs');
var array = fs.readFileSync('file.txt').toString().split("\n");
for(i in array) {
console.log(array[i]);
}
@rafaelmaeuer
rafaelmaeuer / json-uri.js
Last active October 9, 2017 13:15
Convert JSON to/from URI-encoded String - From https://stackoverflow.com/questions/9909620/convert-json-into-uri-encoded-string
function jsonToURI(json){ return encodeURIComponent(JSON.stringify(json)); }
function uriToJSON(urijson){ return JSON.parse(decodeURIComponent(urijson)); }
@rafaelmaeuer
rafaelmaeuer / curl-node.js
Last active October 9, 2017 13:15
Execute CURL in node.js - From https://stackoverflow.com/questions/7498648/how-to-do-this-curl-operation-in-node-js
var util = require('util');
var exec = require('child_process').exec;
var command = 'curl -sL -w "%{http_code} %{time_total}\\n" "http://query7.com" -o /dev/null'
child = exec(command, function(error, stdout, stderr){
console.log('stdout: ' + stdout);
console.log('stderr: ' + stderr);
@rafaelmaeuer
rafaelmaeuer / promise-loop.js
Last active October 9, 2017 13:15
JavaScript ES6 promise for loop - From https://stackoverflow.com/questions/40328932/javascript-es6-promise-for-loop
(async function loop() {
for (let i = 0; i <= 10; i++) {
await new Promise(resolve => setTimeout(resolve, Math.random() * 1000));
console.log(i);
}
})();
@rafaelmaeuer
rafaelmaeuer / logs.js
Last active October 9, 2017 13:15
NodeJS write log file (Json) - From https://stackoverflow.com/questions/25305622/nodejs-write-log-file-json
fs.appendFile('message.txt', 'data to append', function (err) {
if (err) throw err;
console.log('The "data to append" was appended to file!');
});
@rafaelmaeuer
rafaelmaeuer / in-between-time.ino
Last active October 9, 2017 13:15
Calculate in-between-time - From https://arduino.stackexchange.com/questions/17477/creating-a-timer-using-a-real-time-clock-with-start-and-stop-times
if (
(
(nowHH > openHH) // check hours first
|| ( (nowHH == openHH) && (nowMM > openMM) ) // check minutes if in same hour
|| ( (nowHH == openHH) && (nowMM == openMM) && (nowSS >= openSS) ) // check seconds if in same hour & minute
)
&& // both conditions must be valid
(
(nowHH < closeHH) // check hours first
|| ( (nowHH == closeHH) && (nowMM < closeMM) ) // check minutes if in same hour
@rafaelmaeuer
rafaelmaeuer / round-to-two.js
Last active October 9, 2017 13:15
Round to at most 2 decimal places (only if necessary) - From https://stackoverflow.com/questions/11832914/round-to-at-most-2-decimal-places-only-if-necessary
function roundToTwo(num) {
return +(Math.round(num + "e+2") + "e-2");
}
@rafaelmaeuer
rafaelmaeuer / esp8266-wifi-param-example.ino
Last active October 9, 2017 13:15
Feeding WIFI SSID, Passwords and Blynk key’s via a webpage in the ESP8266 EEPROM - From https://community.blynk.cc/t/feeding-wifi-ssid-passwords-and-blynk-keys-via-a-webpage-in-the-esp8266-eeprom/3019/8
#include <FS.h> //this needs to be first, or it all crashes and burns...
//#define BLYNK_DEBUG // Comment this out to disable debug and save space
#define BLYNK_PRINT Serial // Comment this out to disable prints and save space
#include <ESP8266WiFi.h>
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h> //https://github.com/tzapu/WiFiManager
//for LED status
#include <Ticker.h>
@rafaelmaeuer
rafaelmaeuer / protothreading.ino
Last active October 9, 2017 13:15
How to "Multithread" an Arduino (Protothreading Tutorial) - From https://create.arduino.cc/projecthub/reanimationxp/how-to-multithread-an-arduino-protothreading-tutorial-dd2c37
/*
Arduino Protothreading Example v1.0
by Drew Alden (@ReanimationXP) 1/12/2016
*/
//COMPONENTS
/*
This code was made using the Sunfounder Arduino starter kit's blue LCD.
It can be found at Amazon.com in a variety of kits.