Projects

Designed hardware and firmware for a commercial / residential water usage meter with STM32F429 ARM uP, 800x480 color LCD, touchscreen, Li-Po rechargeable battery, and WiFi module.​

Designed hardware and firmware for a commercial timer-based peripheral controller with STM32F051 ARM uP, battery backed real-time-clock with 7-segment display, solenoid and heater drivers, and switch interfaces.

Designed hardware and firmware for an after-market automotive speed safety device with STM32F427 ARM uP, micro-SD card, SDRAM, and OBD CANbus.

Designed hardware and firmware for an automotive OBD dongle with STM32F101 ARM uP and Bluetooth LE module. Also integrated OBDExperts OBD CAN library. Project successfully completed pilot program with 200 users and is now in mass production phase.

Designed hardware and firmware for a magnetic rotation sensor with STM32F101 ARM uP.

Designed hardware and firmware for a precision audiometer using Analog Devices SHARC ADSP-21489 DSP with AD1939 4-channel audio CODEC.

Designed and integrated a medical wearable daughter-board with Linx Technologies GPS module and Telit 3G voice/data cellular wireless module using an off-board Taoglas antenna.

Based on the ARM Cortex-M3 ST Micro STM32F103 uP, embedded C++ firmware drivers were developed to support various peripherals. Embedded IP file system and GUI libraries from Micro Digital and Micrium were then integrated to interface an LCD. Finally, embedded C++ application code was designed around the Micrium uCOS-II RTOS with Quantum Leaps QP Framework state machines to provide user interface and processing of real time water velocity and depth sensor data.