RPi Plug-ins(URGENT)

[ckargi]

Hey everyone

I am on a project of Raspberry-Pi for my university senior graduation project.The subject is "Smart Software for Refrigerators".
I must buy the plug-in devices in this week and this is very urgent.

Can you tell me the names of your favourite devices below compatible with RPi
LCD Screen
Barcode Reader(Scanner)
Keypad
Sensor
Mini Speaker
WIFI Dongle

Thanks in advance... and have a nice day

[paulie]

List of kit known to work...

http://elinux.org/RPi_VerifiedPeripherals

Not sure where you are, but if in UK, Pimoroni do good stuff & I believe they do a complete kit.
If your application is embedded, you could SSH into your Pi remotely (but get it running normally first).