Device specifications

  • Acceleration sensor : Bosch Sensortec BMA180
    - 14-bit output (8192 LSB/g @ ±1 g)
    - Four nominal user-defined sampling rates : 40, 80, 150, 300 SPS
    - Seven user-defined full-scale ranges : ± 1, ± 1.5, ± 2, ± 3, ± 4, ± 8, ± 16 g
    - Nominal noise : 150 μg / Sqrt(Hz)
    - Measured noise : < ± 1.5 mg @ 80 SPS, < ± 2.0 mg @ 150 SPS (standard deviation)
  • Microcontroller : Atmel ATmega328P
    - Frequency : 11.0592 MHz
    - Voltage : 3.3V
    - Programmable via ICSP connector
  • Buffer memory : 1 Mbit Microchip SRAM 23LC1024
    - Buffer capacity : 273 sec @ 80 SPS, 146 sec @ 150 SPS
  • Real time clock : Maxim DS3234
    - Accuracy : 2 ppm (0.17 sec/day, ≈ 1 min/year)
    - Backup battery CR1225
  • Local storage : microSD card up to 2 GB
  • Connectivity with control software
    - Wired : FTDI cable 3.3V @230.4 Kbps
    - Wireless : Bluetooth 2.4 GHz Class-2 @230.4 Kbps – 10 m range
  • Magnetic reset switch
  • Spirit level indicator
  • LED indicators
    - Power
    - Charge
    - Device operational status
  • Power
    - External power supply 5V/1A
    - Rechargeable Lithium Polymer backup battery 3.7V 850 mAh
  • Power consumption
    - On external power : 11.5 / 53.5 / 18.5 mA (no BT / BT standby / BT paired)
    - On battery : 7.35 / 49.5 / 14.5 mA (no BT / BT standby / BT paired)
  • Dimensions
    - PCB : 112 × 38 mm
    - Bluetooth module : 35 × 17 mm
    - Enclosure : 120 × 65 × 40 mm
  • Weight (with enclosure) : 170 gr