
Connect to HAMNET with OpenWRT and a VPN
How to use HamNet without an antenna (but with VPN) from your whole network
Problem → Lösung: Anleitungen und Experimente aus IT, Elektronik, Unterricht und Forschung – auf Englisch.

How to use HamNet without an antenna (but with VPN) from your whole network

How to create a network boot server out of OpenWrt and a Synology NAS which is able to boot (nearly) all system / rescue CDs via the network.

How to replace an (annoying, nearly monochrome) background from image with a transparent one on the fly with pure Java

How to port a real-time operating system to a new platform in order to get a highly versatile IoT platform

How to download and add a self-signed SSL certificate from a server to get rid of warnings

This article introduces a simple QR Code scanner which is able to publish the scanned code via MQTT

This article shows hot to create bootstrap labels which are automatically colored.

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.

This article shows how to build and set up a 3.5W laser cutter for under 300 $.

This article shows how to add additional fonts to a custom built NodeMCU firmware which uses the u8g2 display driver

How to build a custom NodeMCU firmware version for the Wemos Lolin ESP32 and how to display something from LUA

How to flash GRBL1.1f hex file into an Arduino nono clone