JNOSS1

This will be my first HAB, so the payload will not be that impressive. It will be more about learning how the balloon will perform and if the payload will keep on functioning.

Payload

 * Arduino Uno (5v)
 * NTX2-434.650-10 434.650Mhz 10mW transmitter
 * GPS uBLOX MAX-6 (5v) breakout with sarantel antenna
 * MicroSD shield + stackable header pins
 * FlyCamOne eco V2
 * TMP36 external temperature sensor
 * LM35 internal temperature sensor
 * 9v to barrel jack adapter for battery holder
 * Battery holder (6xAA)
 * SMA connector
 * SMA coax cable for 1/4 (17cm) wave antenna
 * Sony Ericsson T230

JNOSS1 Arduino Shield
I made an arduino shield so it's more easier to fit and connect all electronics. I used Eagle PCB Software for creating the electronic schematic. By exporting the Eagle schematics to Gerber RS-274X format I was able to order the PCB online at BatchPCB. Actually I found..too late..two problems with the schematic. First problem was the battery voltage sensor. My main battery was actually around 10.5 volts and with the current voltage divider (two resistors) it was generating around 5.25 volts which was too high for the Arduino analog input (max 5v). So I was forced to put an extra resistor between the main battery and voltage divider. So by adding the extra resistor on the main battery side the output power was divided by 3 resulting in 3.5 volts :) Second problem, well not really a problem, was the pin location for the NTX2. It was a bit off to the right so I was not able to install the pinheader. (see pictures)

JNOSS1 Fly Computer
The fly computer is ready!

Source Code
