Arduino - Uno, nano, nodemcu, esp8266 programmer. I have strong exposure in design, developing software integrating with various sensors. For example: Ultrasonic, temperature, humidity, relay, servo motor, motion etc.., Also integrated with multiple IOT platforms over the cloud. Controlled devices using gsm, bluetooth and wifi modes. Also solid experience in MODBUS - serial communication. Apart from that, excellent exposure in home automation using arduino integrated with Alexa and google assistant.