As a full time freelancer, I design and develop embedded software for IoT smart devices, various sensors, telemetry systems, electric vehicle charging station intelligent sockets, multipurpose power sockets, smart lighting systems, IoT gateways, electric switch automation systems for home & industries, Bluetooth advertising beacons, beacon scanners, infrared & ultrasonic gate-keeping systems, smart gates & barricades, personnel, goods & cargo tracking systems and more.