Enable your users to enter a secondary e-Mail address and specify which of the addresses (or both) should be used for communication with the member. This setting has no effect on the NextCloud communication, but it can be used by third-party systems

VL53L0X-based plant water sensor

LaTeX document classes following the AVÖ corporate identity

Scanning protocol debugging of KONIKA Minolta magicolor 1690MF multifunction scanner/color laser printer => Basis for implementation of sane driver for magicolor devices.

PCB enclosure library for OpenSCAD

Breakout board for Arduino Pro Mini with interface for NRF24L01+ and RFM69H wireless modules and breadboards and/or I²C connectors

NodeMCU i2c Breakout Board

PogoPin adapters for ICSP and FTDI Arduino programming

MySensors BMP280 node (using NodeManager on the node), harware board is the stamp-sized MySensors board

MySensors BME280 node (using NodeManager to handle the communication and the sensors) using the EasyPCB board

VM Framework Loader during Plugin Updates

Protocol debugging of the wireless Vaillant calormatic 340f boiler / central heating controller (868MHz). Results are documented in our Wiki and implemented in rtl433 (and rflink)

Trivial Content Security Policy (CSP) violation logger script.

Tiny client script to implement ddns for domains / hostnames managed by ISPConfig (php code to be executed on the router or a machine behind the router). This script uses ISPConfig's SOAP interface to modify the DNS A entry of the given host.

Protocol debugging and configuration utility for HP 2101w wireless USB print server (USB forwarder). Also implementation of a configuration utility for the VAP11g wireless bridge (uses the same configuration protocol, but over Ethernet).

OpenTools Docker images for WooCommerce plugin testing and development