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Telemetry, Tracking and Command Module 2.0
Remove the tactile switch presented in the first TTC version. As experienced during the TTC board usage, it is not necessary.
Improve nomenclature and folder structure
Improve labels
Improve the debug pins
Improve the mechanical holes
Improve the layers organization
Improve the outputs and documentation
Add status leds
Fix footprints and components
Details such as: surface treatment, pcb color and specified no silkcreen need to be updated. Adding IPC class 3 specification may be useful.
Current names:
As used in OBDH 2.0, TCA4311A is a good choice for I2C buses.
With an interrupt GPIO, the slaves can signalize the master when data is ready to read.
Before release:
OBDH 2.0 repository: https://github.com/spacelab-ufsc/obdh2
Some componentes are directly linked to old EPS and Floripasat libraries, full replacement may be needed to update the components symbol and footprint characteristics.
Now is SSW-126-04-G-D but it must be TSW-126-07-G-D.
Check if they have reasonable values and if are similar to the OBDH's rules.
There are a lot of improvements for the labels:
The OBDH 2.0 repository can be used as reference.
This might be useful for some time of handshake operations, synchronization or redundancy.
Add current and voltage sensors to the power bus of the microcontrollers, and also, if possible, to the radio modules power sources.
Tip: Follow Kleber's checklist
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