Building A Simple Balloon Payload 1 of 2

In this installment, we start developing a simple design by testing parts that satisfy a design. Along the way we demonstrate the use of a few types of digital interfaces that many sensors use, though there are many more out there. The sensors you use will depend on what experiment you're trying to do, basic recording of a flight, some experiment trigger at a particular altitude, and live video transmission would have different requirements from each other. Each one still usually has a strict weight limit, so efficiency is a must.

Next time, we put the pieces together and test it, and compare it to data from a real flight to see if these parts would do a good job.

Contents:
- Flight Behavior: 0:16
- Choosing a Battery: 1:38
- Micro SD Card Logging: 3:23
- DHT11 Humidity Sensor: 7:42
- BMP280 Pressure Sensor: 9:39
- BMP280 & DHT11 Internal Temperature: 12:18

References:
Arduino schematic - https://www.arduino.cc/en/uploads/Main/Arduino_Uno_Rev3-schematic.pdf

Arduino Uno features - https://store.arduino.cc/usa/arduino-uno-rev3

NCP1117 datasheet - https://www.onsemi.com/pub/Collateral/NCP1117-D.PDF

sparkfun sd library - https://github.com/sparkfun/Shifting_microSD

Adafruit dht library - https://github.com/adafruit/DHT-sensor-library

adafruit bmp library - https://github.com/adafruit/Adafruit_BMP280_Library

Find out more:
Arizona Space Grant Consortium: https://spacegrant.arizona.edu/
Arizona Near Space Research: https://www.ansr.org/

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