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@page deviceSpecifications Device Specifications

Microcontroller: Texas Instruments MSP430F5438AIPZR

  • Power
    • 1.8V to 3.6V Supply Voltage
    • Up to 4.6mA needed
  • Capabilities:
    • 16-bit architecture
    • 25MHz System Clock
  • Notable Peripherals:
    • Up to 4 of:
      • UART/SPI
    • Up to 4 of:
      • I2C/SPI
    • 12-bit ADC
      • 14 external channels

Real-Time Clock/Calendar: Microchip Technology MCP7940MT-I/SN

  • Power
    • 1.8V to 5.5V Supply Voltage
    • 1.2uA typical timekeeping current required at 3.3V (This will be powered exclusively by a CR2032 battery)
  • Notable Peripherals:
    • I2C
      • Slave only
      • Clock rate up to 400kHz

Bluetooth/Wi-Fi: Espressif Systems ESP32-WROVER-IE (8MB)

  • Power
    • 3.0V to 3.6V Supply Voltage
    • Minimum 500mA needed up to 1.6A (500mA + 1100mA maximum cumulative IO output)
  • Notable Peripherals:
    • I2C (2)
      • Master or Slave
      • 100kbit/s or 400kbit/s
      • 7-bit/10-bit addressing mode
    • SPI
      • SPI, HSPI and VSPI
      • Master or Slave
      • 1-line full-duplex and 1/2/4-line half-duplex
      • Up to 80MHz
      • Up to 64-byte FIFO
    • UART (3)
      • Up to 5Mbps

GPS Receiver: U-Blox NEO-M9N

  • Power
    • 2.7V to 3.6V
    • 36mA typical will be likely usage
  • Notable Peripherals:
    • SPI
      • Slave Only
      • 5.5MHz
    • UART
    • I2C (Also called Display Data Channel (DDC))
      • Slave Only
      • 400kHz

CANbus Controller: Microchip Technology MCP2515T-I/SO

  • Power
    • 2.7V to 5.5V Supply Voltage
    • 5mA typical in active mode; 1uA typical in sleep mode
  • Notable Peripherals:
    • SPI
      • Slave (Assuming only option)
      • 10MHz

CANbus Transceiver: Texas Instruments SN65HVD234D

  • Power
    • 3V to 3.6V Supply Voltage
    • 6mA typical maximum; 200uA typical in standby
  • Used directly with CANbus Controller

SD Card (Generic)

  • Power
    • 2.7V to 3.6V Supply Voltage
  • Notable Peripherals:
    • SPI

USB to UART Bridge: Future Technology Devices International FT230XS-R

  • Power
    • 3V to 5V Supply Voltage
    • 8.3mA maximum usage in normal operation (This chip will be exclusively powered an external host device)
  • Notable Peripherals:
    • UART

RS-232 Transceiver: Maxim Integrated MAX3232EUE+

  • Power
    • 3V to 5.5V Supply Voltage
    • Estimating 0.3mA typical average usage
  • Will use UART from the MCU

Inertial Measurement Unit: TDK InvenSense ICM-20948

  • Power
    • 1.71V to 3.6V Supply Voltage
    • 3mA typical usage in full 9-Axis mode; 8uA typical in "Full-Chip Sleep Mode"
  • VDDIO Voltage input also needed from 1.71V to 1.95V
  • Notable Peripherals:
    • I2C
      • Slave only
      • 400kHz
    • SPI
      • Slave only
      • 7MHz