Here’s the shoppinglist to reproduce our cups:
nRF2401A (wireless transceiver module) -> http://www.electrokit.se/moduler-radio-hf-nrf2401a-2-4ghz-transceiver-med-chipantenn_41003090
You also need:
- 5 RGB LEDs
- Conductive tape (Strips of copper or equivalent).
- Some thick soft tape, to raise the conductive tape closer to the outer surface layer.
- Paper cup (to fit into the thermos mug).
- 4 transistors (BC846 – A NPN-transistor)
- 4 x 10M Ω resistors
- 15 x 680 Ω resistors
- 1 x 100 Ω resistor
- 1 small switch
- 1 x 9V battery socket + Battery
- 1 x Small vibrator (Adjust 100 Ω resistor to your vibrators preferred current).
- 2 pieces of 1 × 15 female pinholes (to fit the Arduino Nano directly on top of the board).
- Insulated wire (to reduce interference between each sensor and other stuff).
Solution 1:(solder it yourself)
- A Experimental board with 15 x 11 pin-holes (you might want to make it slightly larger so that you get a nicer board than we did…)
- … and wire, solder, tools and some other bits and pieces.
Solution 2:(Printed Curcuit Board (PCB)) – MAKE IT SMALL AS HELL!
- Build the curcuit in the program Eagle by CadSoft online
- Send the curcuit to for example these guys -> http://www.electrokit.se/pcb-order.htm
An great improvement would’ve been to make it possible to reach the reset button! Why not solder on a push button on the outside of the inner layer!?