Kris: First Prototype

First working prototype.

Drawing of first working prototype.

Second, non-working prototype.

 

Cons of First Protype

• no GUI
• quite labor intensive to send a text
• battery only charged when phone was on
• battery caused issues with GSM module if not charged (but screen would still turn on)
• wiring constantly was coming loose
• magnetic speaker was always getting stuck to the switch causing the wires to come off

Cons on Second Protoype

• Does not work (does not get a any response from sending AT in screen)
  • should try with a different sim to make sure it is not a sim issue