Integrated Sensors Electronic Bracer

Posted 2012.05.27 23.34 in Computers/Internet/Technology, Hobbies by Stephanie

Introducing the Integrated Sensors Electronic Bracer (6), or ISEB6, a wrist-mounted sensor platform.

A comfortable wrist-worn leather bracer, that provides: time & date, compass heading, Exposure Value for photography, positional data, walking tracker (distance, time, average speed), galvanic skin response data, local temperature and humidity data, “alarm-clock” functions (alarm by time or countdown seconds alarm), and simple illumination / flashlight functionality.

The ISEB6 is powered by a small / lightweight Lithium-Polymer battery, running up to 48 hours usage on a single charge, and with a simple & fast on-board recharging system.

The ISEB6 is based around Sparkfun’s Pro Micro development board and Adafruit’s SSD1306 OLED display screen. The number six in the name refers to the number of sensors integrated into the bracer. It contains the following sensing circuitry:

  1. Illumination is measured with a TLS2561 digital luminance sensor.
  2. Magnetic fields are measured with an HMC6352 digital magnetometer.
  3. Location is detected with an MTK3339 GPS module.
  4. Humidity is measured with an HIH4030 analog sensor.
  5. Galvanic Skin Response is measured with a simple resistor dividor and gold-plated electrodes inside the bracer.
  6. Local temperature is measured using the on-board temperature sensor in the ATMega32u4 microprocessor.

In addition, the ISEB6 also utilizes two voltage sensors, but as these only monitor its own internal status they are not counted among the ‘listed sensors’.

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