Arduino Breathalyzer

Step 6: Putting It All Togather

Now that we have built all our circuits and tested them lets put them in a nice case.I used a case from a torch.I drilled 10 holes in the box.I had to respace the solder LEDs to fit them in the holes.First I installed the switch and then the power supply circuit then the LED array and then the sensor circuit .For the sensor wire4s to come out of the box I also made a hole at the side.

NOTE: I have installed only one switch as I used a common switch for the 5v supply and the arduino suppky.