2.0 KiB
GENERAL TODOS
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Proper Power connector to connect with PDB
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Our own gps module
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Working heat-sink solution: --> place corals further apart from each other.
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Make the board smaller! --> Weight saving, less expensive
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Use both sides for components.
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Put more LED's:
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Make more pinouts if V0.2 is still a debug board.
Ideas:
Do we want to integrate more sensors onto the board? Temperature, pressure, gyro? #question
How do we measure the position of the flaps/payload bay? #question
Do we need more storage? Implement flash storage or sd-card? #question
Buy sara board from sparkfun?
To Decide before start:
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USB-C yes or no?
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MIPI yes or no?
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Open drain pins: use own transistor or device tree approach? --> Open drain also for PWR_ON
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DEBUG board: yes or no?
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Stress test antenna sara.
Precise TODO's:
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Remap SARA Rx/Tx
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Decide scope of board: still debugging?
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Rewire orange coral status led: with datasheet decide current limiting resistor to have full power at steady on. --> allows to regulate dimness with pwm.
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Use large size resistor for important settings: e.g. voltage regulators
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Make single pin of gnd to attach oscilloscope crocodile clamp
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Find Power connector to connect to PDB.
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Remove 0-Ohm resistors where they are not needed anymore, but provide testpoints!
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Don't use Testpoints: Use holes like jtag: you can later on add pins if needed.
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Add LED to id-pin of cc-control of usb-c (it is a open drain pin) --> when pulled to gnd it should activate a transistor that connects the led to gnd.
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Gpio link to do hard reset between corals.
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Flight controller connectors:
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2x UART
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2x GND Power
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2x 5V Power
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?x GNSS connection
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?x GND between lines for shielding
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General Connectors
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1x GND, 5V for RC (asym-conn)
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2x GND, 5V for fans (asym-conn)
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5x GND, 5V DNP conn for eventualities
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same with 3.3v and 1.8V