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...
PlatformIO - Next-generation IDE for IoT
Altium PCB Designer - Altium offers a top-notch, best-in-class PCB Designer to give engineers the tools they need to interlink with each side involved in the electronic design process.
Visual Micro - Arduino IDE for Visual Studio and Atmel Studio
Ktechlab - KTechLab is an IDE for microcontrollers and electronics.