Microcontroller based product development and cost/performance upgrades. Experience includes design of specialized controllers, embedded networks, automated test systems, and commercial products. Industries: avionics, medical, automotive, entertainment, and HVAC. Products: networked motor servos and sensors, camera and gimbal controllers, battery chargers, lighting controllers, hand-held instruments, data logging, precision frequency measurement, and Windows programs for device configuration and test. Processors: ST STM32F4/H7, Sitara ARM Cortex-A8, ESP32, Microchip PIC. Peripherals: DAC, ADC, FPGA, CPLD, EEPROM, LCD, H-bridge. Analog: video, power supplies, signal conditioning, PLLs, current loops. Sensors: temperature (RTDs, thermocouples, thermistors), humidity, strain, encoders, resolvers. Communications: CAN, Ethernet, EtherCAT, SPI, I2C, USB, RS-232, RS-422, RS-485, MIDI, DMX, Modbus.