Arduino IDE - Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware...
Gravity Sketch for iPad - Easy 3D sketching for design and ideation
PlatformIO - Next-generation IDE for IoT
Sketchfab Store - The ultimate place to buy and sell 3D models
Arduino Eclipse plugin - Where Arduino meets Eclipse
Nexto - Replace boring audio guides with games & puzzles