Use your smartphone as IoT enabled QR Scanner
This article introduces a simple QR Code scanner which is able to publish the scanned code via MQTT
{ } Programming
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Auto-colored labels for bootstrap
This article shows hot to create bootstrap labels which are automatically colored.
Find public IP address for OpenWRT via Script
How to determine your public IP address via a small script in order to announce it via DynDns from a box within the private network.
Engrave things with a 3.5W Eleksmaker and LaserWeb
This article shows how to build and set up a 3.5W laser cutter for under 300 $.
Add display fonts to custom built NodeMCU firmwares
This article shows how to add additional fonts to a custom built NodeMCU firmware which uses the u8g2 display driver
Compile NodeMCU for WeMos Lolin ESP32 with OLED
How to build a custom NodeMCU firmware version for the Wemos Lolin ESP32 and how to display something from LUA
Flash a hex file into an Arduino without IDE
How to flash GRBL1.1f hex file into an Arduino nono clone
Implement cryptocoin payments with Java
Bitcoin and other crypto-currencies are a nice way to buy things from the internet. This article explains how to implement cryptocoin payments in your Java based application.
Content based message routing with apache camel
This article shows how to send exchanges (based on their header information) into different routes.
SCM progress visualization with gource
Do you want to impress your customers / friends by showing what you and your team are doing within a project ? ... Well then give gource a try !
Read /etc/passwd with Java8 streams
This article shows how to read and parse the /etc/passwd file with the new Java8 stream API and Lamda functions
How to install node-red in Ubuntu
This article shows how to install node-red under Ubuntu 16.04