Fully qualified electronics design engineer with over 25 years experience in the design of electronic systems, now starting as freelancer . I have experience in various areas of electronic design including: embedded systems, Analog and digital design, PCB layout, reverse engineering/debugging/circuit analysis, microcontroller firmware development, high power switching controls, low power battery operated devices, 2 yeras experience in the 3D printer structure design in solidwork.and 3D printer electronic design with firmware.We build Arduino base projects.