Mission control and test software for use on the KauIda RockSat-X 2020 mission.

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The arduino (Pro Tinker) is connected to an Adafruit Bluefruit LE UART Friend, and an Adafruit BME680 sensor. The connections are as follows:

The Pro Tinker is powered by a 5v button cell battery.

The Bluefruit's bluetooth services and characteristics must be setup before it is operational. The rockSat_Arduino_setup script can be ran to set it up. This script adds a service for the sensor data, and adds a characteristic for each individual sensor (RSSI, temperature, pressure, humidity, gas resistance, and altitude).

Once setup the rockSat_ArduinoV2 program can be uploaded and ran on the Arduino. This program waits for a connection and then repeatedly writes the sensor data to the bluetooth characteristics until powered off.

The Raspberry Pi must control many different devices such as (The Gopro, RF receiver, Ricoh 360 degree camera, Scissor Boom, and door lock). These devices all inherit from the Device class which is found in RPiMaster/device.py The Device class demonstrates the structure each child class follows. The device class is as follows:

class Device:
  def __init__(self, name):
		self.name = name
		print('Setting up ' + self.name + '...')

	def activate(self):
		print('Activating ' + self.name + '...')

	def deactivate(self):
		print('Deactivating ' + self.name + '...')

	def emergency(self):
		print(self.name + 'stopped immediately!')

As seen above each device has a name and three methods (activate, deactivate, and emergency). Each child may override these methods. These methods are the only public methods, they are the methods called in the Mission Control script. Some devices contain other private supporting methods.

There are several signals that must be detected during the mission such as TE1 a timing signal from the rocket and a door shut signal from a limit switch. The Detect class waits for the low to high signal on a GPIO pin and has the ability to output a signal after the detection. The Detect class can be found in the RPIMaster/detect.py file.