A selection of completed projects
Power Line Controls
IOT over power lines. A line of products developed at ARG to allow communications and control of lighting and equipment over existing power lines without the need for any new wires or wireless setup. This also creates a secure airgapped private network decoupled from the internet or the cloud for security and reliability – especially useful for monitoring and control of critical infrastructure.
Field Oriented Control of Automotive coolant pump
A Infenion TLE9879 based board design for field-oriented control of an automotive pump with a bus current of 20A at 12VDC. Included the design of the board and application-level firmware development.
Wearable HR sensor for a cardiac deviceA custom board with three different processors; A 32-bit processor for precision timing measurements of the hear PPG signal, one processor to handle the sub milli-second solenoid firing and one 16-bit processor to handle the supervisory control – along with the associated firmware development in C.
Gas valve controller EOL test board
A custom board for end-of-line testing of customers gas valve controller (developed by ARG as well). Included a microcontroller controlling multiple precision analog output channels, a USB port for connection to a host PC and a C# program for running the automated test and generating reports.
Proportional gas valve controllerA custom board with three different processors; A 32-bit processor for precision timing measurements of the hear PPG signal, one processor to handle the sub milli-second solenoid firing and one 16-bit processor to handle the supervisory control – along with the associated firmware development in C.
Air quality monitor for HVAC ducts
A custom designed sensor package for measuring 19 different air quality indicators in an easy to install IP68 enclosure with Power Line Communications built in. A central power line gateway is then used to transport all the data securely to the cloud. Installed in multiple locations in Manhattan.
Secure Network Interface Board
A custom ARM based board with a trusted platform module, HomePlug/GreenPHY interface along with Ethernet, CAN, UART, Dual WiFi module with mesh networking capability, NFC reader, USB host and device ports, secure SD card in a rugged form factor the size of a business card. This was developed for use in R&D work into smart grid technologies
Audio board for drive through locations
A custom 16-bit PIC based audio routing board with an USB interface to a host PC for programmatically routing audio signals from various inputs (employee mic etc.) to select outputs (PC audio in, external speaker etc), with microphone and speaker amplifiers built in.
Cryo device controller
A microchip PIC24 based controller and power board. The controller has a RFID module, a LTE CAT1 modem, Stepper controller, LED controller, thermistor inputs, fan speed controller and a touch screen display. Firmware (embedded C) and software (C#) were developed for closed loop control of a treatment cycle. Server side code was developed for remote diagnostics using the LTE modem and AWS servers.
Multi Axis Brushless motor controller
A Performance Motion Devices MC58420 chipset based 4-axis brushless motor controller with on-board amplifiers (4A@24VDC), solenoid valve drivers and RS485 communications with a unique daisy chain architecture for stringing multiple boards together. Developed for a automatic multi channel pipetting machine used in the life sciences industry
A microchip PIC24 based thermostat with LoRA, WiFi, Bluetooth Low Energy and e-ink display including enclosure and overlay design. Developed for EPRI for a California Energy project.
WiFi Smart Plug
A ATSAMD21 based load plug with Redpine RS9113 WiFi module and a 20A relay. Included custom metal stamping for contacts and injection molded enclosure
Radio Isotope detector
A novel radio isotope detector using multiple photomultiplier tubes, unique low noise high speed analog front end design, High speed ADC(2Gsps), Xilinx FPGA, microcontroller, motor control, display and usb communications for use with HPLC, UPLC and other high resolution liquid chromatography equipment
Bluetooth LE data loggers
A bluetooth low energy based data logger with optional RS232 link. Designed to interface to thermistors, pressure sensors or any SPI, RS232, I2C sensors.
Precision metered 3-axis fluid dispensor
Three axes precision liquid dispensing platform for highly accurate nanoliter fluid dispensing into microplates. Included the design of a custom board consisting of three axis coordinated brushless motor control along with multiple external device control and a USB interface to a host computer
Multi-protocol ARM based linux base station for smart grid applications
ATSAM9x25 based linux base station with multiple network interfaces – Ethernet, WiFi, CAN, RS232, HomePlug, Zigbee, USNAP, Bluetooth LE – for smart grid applications
Bluetooth LE based pay-per-coulomb solar charger
A rugged outdoor solar charger with internal batter pack and bluetooth LE for on-the-go charging of cellphones and other electronics. The Bluetooth link is to to validate the user credentials and enable pay-per-coulomb functionality. Based on microchip PIC24 , TIBQ21491 charge controller and SPV1040 MPPT controller.
Multi input milli-watt energy harvester and LiFePo4 charger
A unique design that harvest energy from multiple sources – solar, wind, thermal, tidal – and uses a MPPT based algorithm to charge a LiFePo4 battery.
Tree micro relief scanner
A field portable design for tree micro relief scanning. The design is a unique machine track that can be broken down into three pieces and set up easily in the field. Utilized a servo motor and a laser scanner, battery and a Bluetooth link to a laptop.
RFID space management device
Developed for a space management application. Included a unique RFID antenna design, proximity sensor, a 16-bit microcontroller with firmware written in C and an Ethernet chipset for communications with a central gateway to transfer RFID and occupancy information for logging.
Rugged automotive rapid prototyping
A MPC5xx based ruggedized rapid prototyping platform for use with Matlab tools for automotive ECU algorithm development. Developed as a product line for a Tier 3 automotive supplier
Rugged automotive transmission controller
A C167 based ruggedized control unit for automotive transmission controller application developed for a Tier 2 transmission controller company
Fuel pump controller – 360VDC bus
A XC164 based high voltage (360VDC) fuel pump (brushless dc) controller. Used in a battery cooling application of an electric vehicle.
Dual axis brushless motor controller
A MC58220 (Performance Motion Devices chipset) based brushless motor controller and amplifier (48V@5A) developed for a liquid handling platform used in the life sciences company
Networked reservoir fill controller
A PIC24 based controller for automated reservoir fill and monitoring used in the life sciences industry.
Automotive 16-bit ECU
A Renesas 16-bit automotive grade microcontroller based engine control unit. Developed for a tier 2 automotive controls company.
Rugged panel pc for automotive use
A fan less SBC with a touch screen for automotive use. Custom automotive grade power supply and IP68 enclosure for in-vehicle use
Vehicle gps tracker with ODBii interface and cellular modem
ODBii interface with cellular modem and a 16-bit microcontroller for fleet tracking applications
Custom PC104 box
A PC104 based box for use with Matlab/simulink. Developed for a medical device company for rapid prototyping of control algorithms developed in Simulink.
x86 PC104 Box
An x86 based PC104 stack with custom interface boards for various applications in the area of automotive and industrial controls – specifically targeted towards rapid prototyping of control systems using Mathworks/ Simulink tools
Included brushless motor controller, Linear motors with Renishaw encoders and custom electronics for a precision liquid handling instrument used in the life sciences industry
High speed micro array printer
High speed linear motor based platform for printing micro arrays on glass slides
Large robotic high throughput screening systems
custom high throughput screening systems for pharmaceutical drug screening consisting of an industrial six DOF robot arm on a linear track with multiple motion control systems and sensors
Developed as a research platform into the use of smart wheelchairs for toddlers with developmental impairments. Semi-autonomous with multi sensor fusion and a 32-bit controller with Linux OS.
Autonomous mobile vehicle controller
ARM7 based control board with .NET interface for an autonomous mobile vehicle platform along with complete mechanical design of the chassis including a holonomic drive train, brushless motor controls, sonar & IR sensors and WiFi