I'm experienced electronics engineer. I'm specialized on device product creation starting with overall concept and ending at product testing.
I've used in my devices STM32, AVR, PIC16F****, Atmel's ARMv8 SAM3S, speciliazed IC's C-media USB audio , Tenor USB, etc..
I am implemented Freertos for ARM SAM3S .
For board development i using Altium Designer and Diptrace softwares.
As my hobby i also made Hi-Fi audio parts of equpment ( DACs , Class-D amplifiers, Simple sound processors)