alexellis

int sensorPin = 7;              // 220 or 1k resistor connected to this pin

long threshold = 200;
long ambientReading;
long ambientReadingCount;
bool tripEnabled = false;
int LED_PIN = 3;
int BUZZER_PIN = 4;
int ambientReadingsToTake = 10;

alexellis

// * Download a tile/thumbnail from the LandSat 8 dataset. 
// Create directory called 'images'
// npm install request path async
// node GetNasaEarth lat lon

// * How program works
// First find all passes by date of the satellite, then request a thumbnail from the API
// Follow API through and download the images in batches of 5.
// Timing is to off-set throttling on the data-API.

alexellis

// Author: Alex Ellis 2015
// Sample in node.js for fetching passage from ESV's restful API in plain-text format.
//
// 1) Save this file as esvlookup.js
//
// 2) Install module for making HTTP requests
//    npm install request 
// 3) Run the program and fetch the passage about being 'born-again'
//    node lookup.js John 3:1-3

alexellis

#define enablePin 2
#define IN1_L  3
#define IN3_R  6

#define IN2_L  5
#define IN4_R  9

int engineSpeed;
const int BRAKE=0;
const int FORWARDS=1;

alexellis

#define MOTOR_PIN 3
#define SENSOR_VCC 9
#define SENSOR_MOISTURE A2
#define MOISTURE_THRESHOLD 700
#define SENSOR_WARMUP 1200
#define SAMPLE_DELAY 8000

void setup() {
  pinMode(SENSOR_VCC, OUTPUT);
  pinMode(MOTOR_PIN, OUTPUT);

alexellis

var redis = require ('node-redis');

var updateCounter = function(done) {
  var client = redis.createClient("6379",function (err) {
    if(err) {
      return console.error(err);
    }
    client.incr("hit_counter", function(ierr) {
      if(ierr) {
        return console.error(ierr);

alexellis

function AHashtable(size) {
	this.table = this.init_table(size);
}

AHashtable.prototype.set = function(key, value) {
	var self = this;

	var index = self.jenkins_hash(key, self.table.length);
	self.table[index] = value;
};

alexellis

var request = require('request');
var async = require('async');

var found = [];

async.until(function() {
  return false; // infinite async-loop, insert counter check here.
}, function(cb) {
  request.head("https://www.raspberrypi.org/blog/the-little-computer-that-could/",
    function(err, res, body) {

alexellis

module("resty.consul", package.seeall)

_VERSION = '0.1.0'

function service_nodes(service)
  local http = require "resty.http"
  local json = require "cjson"
  local hc = http:new()

  local upstream = ""

alexellis

# This was broken until I changed GPIO.BCM to GPIO.BOARD

import RPi.GPIO as GPIO  
import time  
import os  

# Define PiLITEr to GPIO mapping  
leds = [7,11,13,12,15,16,18,22]

GPIO.setmode(GPIO.BOARD)