Microcontrollers 1,349 Programmable controllers 555 Programming 205 Design and construction 153 Arduino (Programmable controller) 144 Automatic control 133 Microcontroller 118 Arduino (Microcontroller) 76 Robots 71 Embedded computer systems 65 Control systems 58 Mobile robots 58 Detectors 56 Internet of things 44 Microprocessors 44 Robotics 44 Digital control systems 40 Wireless communication systems 38 Autonomous robots 35 Electronic alarm systems 35 C (Computer program language) 34 Global system for mobile communications 33 Atmel AVR microcontroller 31 Sensor networks 30 Ultrasonics 30 Electronic control 28 Light emitting diodes 26 Solar energy 26 Automobiles 25 Monitoring systems 22