Daily snippet

Jul 3, 2014 • Ayush (PTZ/Serial Extension)

Changed daughterboard pinouts in schematics support PMOD I2C interface.
Looked at the possibility of using bidirectional isolators in data isolation stage, but it was ruled out as they were found to be expensive.
Re-justified use of data isolation stage in serial expansion motherboard.
Created new kicad modules (footprints)
Completed footprint association of components on motherboard schematics using CvPcb
Verified footprints for components and checked 0603 footprint to be imperial type instead of metric type. Checked datasheets of all components to make sure correct footprint is assigned to them.
Made sure only low current (2mA) LEDs are used.
Fixed hole dia and added shield pins in VHDCI module
Just started with PcbNew, will be creating new module for the daughterboard slot and start laying them out nicely.

Originally posted on Serial port expansion for HDMI2USB with PTZ camera control example