Development Kit Microchip DM160213

Microchip’s BodyCom Technology is a short-range, low-data-rate communication solution for securely connecting to a wide range of wireless applications.

Detailed Description

Activated by capacitively coupling to the human body, the system communicates bidirectionally between a centralized controller and one or more wireless mobile units. Intra-body communication occurs utilizing the human body as the transmission medium.

Compared to other existing wireless technologies BodyCom offers lower active and standby energy usage, increases security through bidirectional authentication , provides a secure communication channel using the human body and allows for simpler circuit-level designs.

The BodyCom Development Kit is designed to help engineers get up-to-speed quickly using this new technology. Utilizing Microchips PIC microcontrollers and Analog components, it provides everything needed to program, debug, and develop secure communication systems for a variety of applications including Access Control or Passive Keyless Entry.

BodyCom Benefits

  • Simpler Implementation
    • No RF antenna design necessary
    • Low-frequency design using common microcontroller and AFE frequencies (125 kHz / 8 MHz), no external crystals needed
    • Complies with FCC Part 15-B, Radiated Emissions
    • Lower overall BOM, compared to existing technologies
  • Lower Power Consumption
    • No wireless transceiver required for two-way communication
    • Not using high-power inductive fields
  • More Secure Communication Channel
    • Provides bidirectional authentication through the human body
    • Prevents the “Relay Attack” problem typical in PKE solutions
  • Supports Advanced Encryption Solutions
    • Such as KeeLoq Technology with AES-128

The BodyCom Development Kit includes these features:

  • Base Unit
    • PIC16LF1829 20-pin Flash MCU with XLP technology
    • 16x2 character LCD w/backlight and controller
    • Multiple oscillator options:
      • 8.192 MHz canned oscillator
      • 8.192 MHz crystal oscillator
    • Multiple power source options:
      • USB Mini-B to USB-B 5V cable (included)
      • 9V external power supply (not included)
    • Two coupling pad boards designs (vertical and diagonal)
    • Full-bridge MOSFET LC driver circuit example design
    • Touch/Signal prototyping pins
    • Configuration selection jumpers to disable board components
    • Four push buttons
    • One Power LED
    • One Application LED
    • On-chip program Flash memory and EEPROM storage
    • MCP2200 with Bootloader support for easy firmware upgrades
    • Generous prototyping area with (+9V, +5V, +3V and GND rails)
    • Support for all Microchip compatible programmers and emulators
    • MCP2035 is a single-channel stand-alone Analog Front-End (AFE) device for low-frequency (LF) signal detection
  • Mobile Unit
    • PIC16LF1827 18-pin Flash MCU with XLP technology
    • Low-power hex inverter full-bridge LC driver circuit example design
    • Example key fob design
    • Plastic case
    • Two Application LEDs
    • On-chip program Flash memory and EEPROM storage
    • ICSP programming pads
    • MCP2035 is a single-channel stand-alone Analog Front-End (AFE) device for low-frequency (LF) signal detection

The BodyCom Development Kit includes the following:

  1. BodyCom Development Board (Base unit)
  2. (2) Mobile units with unique identification values (pre-programmed to Base unit)
  3. (2) Plastic key fob containers
  4. USB mini-B cable
  5. BodyCom Development Kit Quick Start Guide

BodyCom Development Kit User Guide and Schematic

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