Arduino IDE - Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware...
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
B4R - Development tool for native Arduino programs.
upverter - Upverter makes it easy to design and share electronics on the web.
PlatformIO - Next-generation IDE for IoT
Ktechlab - KTechLab is an IDE for microcontrollers and electronics.