make.opendata.ch wiki

Trying to open proprietary medical sensors and connect them to the Internet.

Connecting a personal medical sensor device to the Internet enables storing measurements over time (compared to a single measurement displayed on the device display). A connected sensor is thus more valuable than a stand-alone device. Connected sensors do exist, but are often quite expensive. On the other hand, Bluetooth modules and Bluetooth enabled Smartphones are readily available and can act as a cheap gateway to the Internet.

• Weinberger KP-6241 (CHF 25 at Media Markt)
• BlueSMIRF Bluetooth Module (https://www.sparkfun.com/products/582)
• Arduino Nano
• Nexus S Android Smartphone with Bluetooth, Wifi, 3G

• Open the medical sensor device housing [DONE]
• Find a way to intercept data sent to LCD display [DONE]
• Detect signals sent to LCD display with multimeter [DONE]
• Attach wires to LCD display, to do the measurement with an Arduino [TODO]
• Setup Bluetooth module to send measurements from Arduino [DONE]
• Receive measurements sent via Bluetooth with (Windows) Laptop [DONE]
• Receive measurements sent via Bluetooth with Android [TODO]
• Make measurements available on the Internet [TODO]
• Plan B: use OCR (e.g. ]this Google API]) to read med device display with Android camera [TODO] ===== Tools ===== * Screwdriver * Multimeter ===== Team ===== * [[https://twitter.com/#!/drdol|@drdol
• @der_graf
• @tamberg

• No source yet
• http://make.opendata.ch/forum/discussion/57/open-data-for-your-health#Item_12
• http://quo.vadis.stojkovic.ch/hacking-a-weighing-scale/ (How to scrape an LCD display)
• http://www.instructables.com/id/Weather-proof-Bluetooth-capable-RFID-reader/step2/Configure-the-BlueSmirf-module-via-USB/