Looking at starting a new project to collect data through Bluetooth, save it on a SD-card and collecting the data via Wifi.
User interface is a display /w touch screen (5-8"). From multiple PCs one must be able to collect the data, through a web-browser.
The Wifi-shield has a SD-memory + Webserver functionality. For example: http://www.electrokit.com/arduino-wifi-shield.49952
Bluetooth that goes over the UART. http://www.lawicel-shop.se/prod/Seeeduino-Bluetooth-Sheild_922129/Shields_74954/SWE/SEK
The display comes in 2 versions: SPI or Parallel (40pins). http://www.electrokit.com/3-2-widescreen-tft-lcd-modul.49759 http://www.electrokit.com/lcd-4-3-grafisk-tft-seriell-med-touchscreen.49290
This LCD+touch shield looks cool. Anyone tried it or know if it's any good? http://vizictechnologies.com/#/smart-gpu/4554296549
I believe the Arduino MEGA is my only choice since i have at least 3 shields running on SPI Except the BT that goes on UART. Any suggestions or ideas if this is possible at all or what i should beware and think of before getting started.