Wireless Student Response System to Enhance Classroom Learning

Challenge

Design a system with which students in a classroom setting can interact in real-time with projected prompts or verbal questions from an instructor.

Solution

Freescale integrated 802.15.4 (ZigBee) radio and microcontroller system on chip (SoC) components, PCB-trace antenna, Freescale MAC, ANSI C and Code Warrior.

Summary

Children growing up in the digital age of computers, MP3 players, and game devices learn differently than students of the past. To keep students engaged in learning, schools are investing in forms of technology that are familiar to children and intuitive to use.

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Topics: Electronic Contract Manufacturing, Electronic Engineering, Firmware Development

Water Chemistry: Chemical Feed Controller

Challenge

Bring laboratory-grade water analysis and chemical feed control to large-scale commercial and industrial water cooling tower systems.

Solution

A custom designed, solid-state, highly accurate multi-channel fluorometer combined with a microprocessor-driven chemical feed controller.

Summary

Accurate chemical monitoring and feed control of chemicals in cooling tower water systems is required to reduce mineral scale, corrosion, and microbe growth. Relatively high volumes of expensive chemicals are required to protect these systems.

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Topics: Electronic Contract Manufacturing, Electronic Engineering, Firmware Development, Industrial Controls

Product Design: Designing for Reliability, Regulatory Standards, and Manufacturability

Challenge

Refine a proof-of-concept design to optimize product reliability, compliance to regulatory standards, and manufacturability.

Solution

Develop a system of circuit boards and interconnections for cost effective integration and manufacturing while adhering to industry and regulatory standards.

Summary

Assessing the viability of a product idea can be difficult. The process often begins with a rough design sketched on paper. As the research and development phases of the project move forward, one or more proof-of-concept prototypes are often required.

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Topics: Electronic Contract Manufacturing, Electronic Engineering, PC Boards

Industrial Monitoring & Control: Boiler Control

Challenge

Create a modular, expandable, configurable and robust boiler monitoring and control system that can be used world-wide.  The system must be able to connect to a wide range of external input sources as well as control external devices.  Ethernet, USB and modem connectivity are required.

Solution

An NXP 32-bit ARM7 processor, multiple Microchip 8-bit PICs, Micro Digital SMX operating system, ANSI C, and the IAR Embedded Workbench were used to create this extendable, robust, highly flexible system.

Summary

Tecnova was asked to build the next generation of industrial controllers for a long standing customer. The customer's goal was ambitious – configurable enough to support multiple current product lines as well as future products not yet envisioned.

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Topics: Electronic Contract Manufacturing, Electronic Engineering, Industrial Controls

Embedded Electronics: Portable Chemical Analyzer

Challenge

Create a low-cost, handheld battery powered fluorometer for use in laboratory settings to measure trace chemicals in industrial reverse osmosis treatment systems.

Solution

A custom designed pen fluorometer with a membrane keypad and LCD display, based on the Texas Instruments MSP430F427 16‑bit ultra-low-power microcontroller.

Summary

Industrial reverse osmosis (RO) water treatment is used to purify process water by removing impurities. As pressurized raw water enters the RO system, a small amount of pure water passes through a filter membrane. 

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Topics: Electronic Contract Manufacturing, Electronic Engineering, Electro-Mechanical Products

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