jforge

[{"id":"c423a506.3c0cd8","type":"ui_tab","z":"64e4f956.f03c88","name":"Home","icon":"dashboard","order":"1"},{"id":"d1393eeb.9957b","type":"mqtt-broker","z":"64e4f956.f03c88","broker":"things.online","port":"1883","clientid":"node-red-macbook","usetls":false,"verifyservercert":true,"compatmode":true,"keepalive":"60","cleansession":true,"willTopic":"","willQos":"0","willRetain":null,"willPayload":"","birthTopic":"","birthQos":"1","birthRetain":null,"birthPayload":""},{"id":"782571e8.03d01","type":"mqtt in","z":"64e4f956.f03c88","name":"Color Temperature","topic":"tinkerforge/bricklet/color/+/color_temperature","broker":"d1393eeb.9957b","x":126,"y":687,"wires":[["7b8b60b8.09b3c","4a3d71ea.5f8e1"]]},{"id":"7b8b60b8.09b3c","type":"debug","z":"64e4f956.f03c88","name":"","active":true,"console":"false","complete":"false","x":303,"y":792,"wires":[]},{"id":"4a3d71ea.5f8e1","type":"json","z":"64e4f956.f03c88","name":"","x":329,"y":618,"wires":[["8456cef2.8a168"]]},{"id":"1a9f8175.0f143f","type":"ui_gauge","z":"64e4f95

jforge

// https://raw.githubusercontent.com/akra/node_redis_counter/master/index.js
var redis = require('redis');
var client = redis.createClient(6379, 'redis');
 
client.on('connect', function() {
    console.log('connected');
});

var loop = function() {
  client.incr('counter', function (err, reply) {

jforge

// https://create.arduino.cc/projecthub/TheGadgetBoy/wi-fi-jamming-device-based-on-esp8266-48d6f0
/*
Before you make this jammer, take a look at the local law enforcement before use and also use this device at your own risk !!!
After I did some research about the Espressif microcontroller ESP8266, I found that Espressif has written a

wifi_send_pkt_freedom()

function that just sends out whatever packet I’d like to the network.
It also turns out that the ESP8266 will enter monitor mode, where it listens to all WiFi traffic regardless of the MAC address that it’s directed toward.

jforge

http://www.instructables.com/id/How-to-make-wearable-display/
http://www.instructables.com/id/15-Cool-OLED-Display-Projects/
https://www.instructables.com/tag/type-id/category-/keyword-oled/

Essentials: Make the wearable stuff around the cheap eletronics, 2 weeks battery for 6-10 oled characters

jforge

Intro

Description: Setup GitHub Pages "gh-pages" branch and "master" branch as subfolders of a parent project folder ("grandmaster").

Author: Chris Jacob @_chrisjacob

Tutorial (Gist): https://gist.github.com/833223

The Result

jforge

# 1. Certs with Let's encrypt (automation with ACME)
# 2. Provide certs to mosquitt and Test:
#    http://rockingdlabs.dunmire.org/exercises-experiments/ssl-client-certs-to-secure-mqtt
listener 8883
cafile /etc/letsencrypt/live/example.com/chain-ca.pem
certfile /etc/letsencrypt/live/example.com/cert.pem
keyfile /etc/letsencrypt/live/example.com/privkey.pem

# 3. Test with Client Certificate
# 4. Test with Pre-Shared Keys alternative

jforge

# fixed: http://jpmens.net/2013/09/01/installing-mosquitto-on-a-raspberry-pi/
# ref: https://mosquitto.org/2013/01/mosquitto-debian-repository/
# to get newer versions 1.4.+

wget http://repo.mosquitto.org/debian/mosquitto-repo.gpg.key
sudo apt-key add mosquitto-repo.gpg.key

cd /etc/apt/sources.list.d/
sudo wget http://repo.mosquitto.org/debian/mosquitto-jessie.list

jforge

docker rmi `docker images -aq`
https://github.com/ePages-de/epizza/blob/ref/gradle-plugins/src/main/groovy/epizza/gradle/DockerConventionPlugin.groovy
https://github.com/spotify/docker-gc
https://github.com/chadoe/docker-cleanup-volumes
https://docs.docker.com/engine/userguide/eng-image/dockerfile_best-practices/

jforge

Every year and every new MacOS version the same: 
masses of people posting about problems with the serial connection discussing solution that do not work in general.

This is my way with MacOS El Captain (10.11.6) and Arduino 1.8.2 ;-)

(yes, versions are important, because the solution may not work with any other)
(no, Do NOT try the "FTDI" solution, it does not work anymore in this case)


Problem:

jforge

PORT=1099; PID=`lsof -i tcp:$PORT | tail -1 | tr -s ' ' | cut -d\  -f2`; echo "Process-ID for Port $PORT is: $PID"; ps aux | grep $PID