First Project: Wiring - Raspberry Pi Forums

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if wrong place post, tell me , move it.

first project here, , idea take pi , make touch screen mobile computer out of it. have game plan want verify it'll work local experts . :d

plan hook 12 volt battery supply screen control board, seeing module needing power. off of wire attach converter convert 12 volts 5 volts 3 amps plugged powered usb hub powers rpi. rpi connected screen control board hdmi connects touch screen. screen control board has attached module buttons control screen settings. touch screen connected usb hub provide control.

have provided visual display need it: http://imgur.com/a/mrjvp. provides underneath visual way understand need purchase. urls follows:

1. http://www.amazon.com/gp/product/b003z4 ... utf8&psc=1
2. http://www.sainsmart.com/7-inch-tft-lcd ... a-2av.html
3. http://www.amazon.com/keedox%c2%ae-conv ... 259&sr=1-1
comments on how improve design or it'll work or not appreciated.

1. i'd tempted less specific regulator (battery voltages drop during useage , don't want drop being passed on pi). such 5v 3a bec
2. seems reasonable.
3. i'm not need this.
4. wifi dongle

thoughts:
have pi, if not should plan use b+ application instead of b. b+ has 4 usb ports , won't need usb hub.
if have b , don't want b+ application still consider if hub required, planning plug in usb ports? assume need touchscreen , wifi dongle should need.


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