EDSON PAIVA

EXPERIENCE

• Present Day 2021

  WEB DESIGNER

  EDSON PAIVA ENGINEERING, ORLANDO, FL, USA

  • Working as Independent Contractor to BPS - Brazil Visit BPS site
  • Create and setup this website.
• 2021 2019

  SOFTWARE ENGINEER (Independent Contractor)

  COMMUNICATIONS SPECIALISTS INC, ORANGE, CA, USA

  • Firmware for a Telemetry Receiver.
  • C algorithm to generate any frequency from 90 MHz to 520 MHz in 1Hz steps for a fractional PLL IC.
  • Windows GUI software to test, simulate and visualize the PLL frequency synthesis algorithm.
  • PC Communication Software for the Telemetry Receiver programming.
  • Data Interface Receiver using M5STACK/ESP32. It has color display, SD Card data storage and sends data to the internet via Wi-Fi.
  • M5STACK/ESP32 Data Logger with color display, SD Card data storage, and PC serial interface.
  • Windows GUI for production programming of M5STACK/ESP32 flash memory.
  • Electronics schematics drawing and PCB layouts double checking.
  • Manual assembly of Proof of Concept Prototypes.

• 2019 2015

  ELECTRONICS R&D ENGINEER

  IWS INSTITUTE FOR WILDLIFE STUDIES, ARCATA, CA, USA

  • Development of the Firmware and Software for the RF products used in Telemetry and Wildlife Research.
  • SQL Server Compatible Database Web System for Wildlife Data Log and Storage.
  • Wildlife Data Transceiver connected via Bluetooth to a Tablet/Smartphone to store and to send wildlife data to the internet.
  • Android Application to transfer wildlife data from Bluetooth to Internet via Wi-Fi.
  • Android Database Application which interfaces to an UHF Wildlife Data Transceiver via Bluetooth.
  • Wildlife Data Receiver using a Raspberry Pi to store and to send wildlife data to the internet via Wi-Fi.
  • Raspberry Pi GUI Application which interfaces to an UHF Wildlife Data Transceiver.
  • UHF Data Interface Receiver which transfers the wildlife data to a PC Computer via USB.
  • Windows GUI to transfer wildlife data from USB to Internet.
  • Analog Receiver with automatic channel pairing and RF level indicator.
  • Low Power and Over-the-Air Programmable Pulsing/Data Transmitters.
  • Development of a PC board to test and develop new products.
  • Windows GUI for Microcontrollers Flash Programming, using encrypted hex files.
  • Algorithm for TCXO's Frequency Digital Adjustment.
  • Narrow Band Digital Data Transmission Proprietary Protocol.
  • Handheld Multi Programmer for programming radio telemetry miniature devices parameters, using OTA (over-the-air) technology.
  • Low Power Magnetic Switch for wildlife transmitters, using a solid state magnetometer.
  • Programmable Motion & Position detectors for wildlife transmitters, using an accelerometer chip.
  • Handheld Digital Data Transceiver.
  • Digital Perimeter Receiver with automatic ID pairing and RSSI level indicator.
  • UHF Ultra Narrow Pulses Receiver with RSSI level display.

• 2015 (30 Years) 1985

  DIRECTOR (Partner, 51% of the Company)

  BPS COMERCIO E TECNOLOGIA LTDA, SAO PAULO, SP, BRAZIL   Visit BPS site

  • Design, maintenance and operation of the cordless telephone system used in live voice trading sessions of the Stock Exchange and Commodity Exchange in Sao Paulo for over twenty four years without a single interruption due to technical failure.
  • Company management and products development.
  • Hardware design, electronic schematics draw, and printed circuit board layout design using computer simulations and CAD programs.
  • Electronic components researching, writing of all software and firmware for the products and fixtures used in an automatic final testing & troubleshooting.
  • Development of custom web based expert systems, programmed specifically to fulfill unique customer needs.
  • Digital full duplex radio telephone using a single narrow band RF channel.
  • GPS vehicle tracking system using GSM cellular network.
  • Small area cellular phone repeaters.
  • Telemetry and alarm systems using telephone line, GSM cellular network, and internet TCP IP protocol.
  • Narrow Band MSK high performance modem.
  • Microcontroller based DTMF encoders & decoders.
  • Miniature CTCSS encoders and decoders.
  • Miniature programmable single tone encoder decoder.
  • Sequential tones encoders and decoders.
  • Miniature selective calls modules using efficient and noise tolerant MSK data modulation.
  • Voice scramblers.

• 1985 1981

  TECHNICAL DIRECTOR (Partner, 8% of the Company)

  TELEPATCH SISTEMAS DE COMUNICACAO LTDA, SAO PAULO, SP, BRAZIL

  • Leader of the development laboratory.
  • In charge of researching components and set up purchasing.
  • Design and manufacture of UHF/VHF synthesized mobile transceivers, repeaters and portable radios.
  • Development and manufacture of power supplies for transceivers and repeaters.
  • Design and manufacture of rural radio telephones.
  • Portable UHF/VHF synthesized Full Duplex Telephone.
  • Half Duplex (Autopatch) and Full Duplex Radio Telephone for automobiles.

• 1981 1979

  TECHNICAL DIRECTOR (Partner, 50% of the Company)

  TARKUS INDUSTRIA ELETRONICA LTDA, SAO PAULO, SP, BRAZIL

  • In charge of the development laboratory, quality control, and manufacturing of Hi-Fi audio equipment.
  • Design and manufacture of power amplifiers, preamplifiers, graphic equalizers and audio mixers.

• 1979 1975

  DEVELOPMENT ENGINEER

  IGB CONTROL TELECOMUNICACOES SA, SAO PAULO, SP, BRAZIL

  • Professional public address systems for airports and subway stations.
  • Power supply design for UHF/VHF radios and repeaters.
  • Development of DC-DC power converters for railway use.
  • Assisted the development of an Electronic Monitoring Brakes System for subway and rail.
  • Participation in the development of the first touch-tone Brazilian telephone approved by TELEBRAS.
  • Design of signaling modules for a rural radio telephone system.

• 1975 1973

  ELECTRONIC ENGINEERING TRAINEE

  IGB ELETRO SISTEMAS SA, SAO PAULO, SP, BRAZIL

  • Design of a 10 Watts RMS automotive amplifier using germanium power transistors connected in bridge differential output.
  • Design of an Audio Generator with 0.01% of harmonic distortion.

• 1975 1971

  TEACHER OF MATHEMATICS AND STATISTICS

  ESCOLA SUPERIOR DE PROPAGANDA & FUNDACAO BRASILEIRA DE MARKETING, SAO PAULO, SP, BRAZIL

  • Linear, Exponential and Polynomial Correlation for Graphic Analysis of the Market.
  • Use of Statistics in Sales Forecasting.