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

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PROMPT is primarily intended to operate off of the regulated 5v provided from the backplane through the sensor board's connection. To allow for PROMPT to be utilized independently, the power system should be rated to allow for the direct connection of a 2S LiPo battery. This will include all the requisite battery protection circuits, such as reverse-polarity protection and over-current protection.

Human Interface

2 debug LEDs will show the state of PROMPT at a glance. A CP2102N is integrated on the board to act as a UART-USB bridge, providing both a debugging interface and a means of downloading data from the board if it is being operated independently of the backplane. 

Component Selection:

0-60PSI pressure: ABP2LANT060PG2A3XX

• Used by Sparkfun
• i2C interface
• Not on JLCPCB

Thermocouple Amplifier: MAX31855 

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

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• Unknown, probably STM32

Memory: W25Q128JVSIQ

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

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