I have experience with ARM7/ARM9 (os-less), Atmel AVR, Microchip PIC/dsPIC (8/16 bit), x51 (e.g. SiLabs) architectures. Operation with communication interfaces SPI, I2C, UART, GPS, wireless modem modules. Working with CAD software (PCAD) and software testing (Proteus). Also have experience with Android software developing, developed project using Java, JS.