PROMPT - Project for Recording, Observing, and Measuring Parachute Tube

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• Bad therm0c0up|e, bc wire has to bc e=special bc you have to read voltage magnitude across the two types of metal which can be easily influenced, i.e. resistor of wire plus breakaway connector will have breakaway thingie which will affect it. - Mary Dertinger (RIT Student) 

Pressure Sensing:

The pressure inside a standard parachute bay should be between 8 and 15 PSI when the parachutes deploy. In case that value is incorrect, a significantly overrated sensor was chosen. The selected sensor also has considerations for the attachment of a measuring tube, to allow the sensor to be situated away from the bulkhead, therefore reducing wiring complexity. This measurement tube will be run through the bulkhead and to PROMPT wherever it is mounted.

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Component Selection:

0-60PSI pressure: ABP2LANT060PG2A3XX

• Used by Sparkfun
• i2C interface
• Not on JLCPCB

Comments/Questions:

• a 

Thermocouple Amplifier: MAX31855 

• Used by Adafruit
• 3-Wire SPI interface
• Cannot be used with grounded thermocouples
• JLCPCB: C52028

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Comments/Questions:

• a 

Memory: W25Q128JVSIQ

• Same as most other devices on the backplane
• JLCPCB: C97521

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• Widely used by Adafruit and similar
• Input range from 0.5 to 5.5v
• Output adjustable from 2.2 to 5.5v
• 3.7A max current
• Pass-through mode when VIN > VOUT
• JLCPCB: C919459

Comments/Questions:

• a