Zone 7 Engineering can assist customers in any of the following areas:
- Electronic prototyping and electronic product design
- Electronic circuit schematic design, PCB design, test, debug, and integration
- Embedded processor firmware design (drivers, application, and DSP algorithms), development, debug, and integration
- Initial project planning (specification writing, structuring, and system design)
- Consultations
- STM32 microprocessor and SHARC / BlackFin DSP mentoring
- Schematic and firmware peer reviews
Zone 7 Engineering has experience with designing electronics and embedded firmware for the following projects:
- Hand held and remote meters
- OBD vehicle electronics
- Wired and wireless sensors
- High performance audio capture / processing / reproduction and audio CODEC
- Medical wearable devices
- Low power battery driven electronics
- IoT device to server electronics and firmware (MQTT, HTTP / HTTPS / JSON protocols)
- Device to device electronics and firmware (BLE, ISM, WiFi)
- BLDC and BDC motor control
Summary of processors & tools regularly utilized:
- Processors: ST Micro STM32F0 / STM32F1 /STM32F3 / STM32F4 / STM32F7 / STM32WB10 / STM32WB50 / STM32G4, Analog Devices BlackFin BF70x DSP, SHARC 210xx, 214xx, and 2156x DSP
- Embedded IDE tools: IAR EWARM, Analog Devices CrossCore Embedded Studio (CCES), STM32CubeIDE
- Embedded IP libraries: Segger emWin GUI, Segger emFile FAT file system, SQLite, OBD Experts vehicle OBD-II, Micrium uC/OS-II RTOS, FreeRTOS, MicroDigital smxFS FAT file system, Closed Loop Design (CLD) USB Audio, Adaptive Digital Noise Reduction
- Interface: SPI, I2C, I2S, CANbus, UART, A/D, D/A, PWM, SDRAM, RGB TFT LCD, SAI, USB
- Wireless: uBlox NINA-B4 BlueTooth, SimCom SIM7500 LTE, uBlox MAX-M8 GNSS, Sierra Wireless BC127 Bluetooth, Telit HE910 3G, Linx Technologies GNSS / GPS, Roving Networks RN171 WiFi, Atmel ATWINC1500 WiFi, TI CC1101 sub-1GHz ISM band, MicroChip RN4020 Bluetooth Smart / Low Energy (BLE)
- Schematic capture: OrCAD
- PCB CAD software: OrCAD and PADS
- Drawing tools: AutoCAD LT
- Analog simulation tools: CircuitLab
- Version control: SubVersion and GIT
David's education background:
Master of Science (M.S.), Electrical Engineering
Johns Hopkins University
Digital Signal Processing concentration
1995 - 1999
Bachelor of Technology (B.Tech.), Electrical Engineering
Rochester Institute of Technology
1987 - 1990
Associate of Science (A.S.), Electrical Engineering Technology
State University of New York at Alfred
1985 - 1987
