Blupoi

blupoi

TODO

Changes since v0.3:

• 1uF 0402 caps not ordered

• C27 pad has a large via in a pad
• FIXED: MAX16054 Connect CLEAR to GND if unused.
• FIXED: SIP32408 Footprint pinout was mirrored ? Change battery orientation, since spring should be on the top side but also on the gnd side of BAT

• Maybe dont since VBAT would end up coming out in a place where it is not useful

• X1 label covered by hole
• X1 footprint larger than bom part?
• C1/C2/C3 footprint is 0603 but bom is 0402
• SWO header, change part and footprint to have only be connectable the 'right' way

Changes since v0.2:

• FIXED: Replaced USB connector oval holes with round ones for improved fabricability
• FIXED: Reflowed filled zones since KiCad somehow did it randomly wrong in v0.2
• FIXED: R1 Move via further away from pad
• FIXED: Move USB connector and power button to the side

Changes since v0.1:

• FIXED: Battery compartment is not quite wide enough.

• IGNORE: Battery compartment battery spring slot is:

  • 0.5mm too thin, should be 1.6mm
  • 0.5mm too slim, should me 17.75mm

• FIXED: Spring slots lack copper on the back side

• FIXED: +/- symbols on the battery silkscreen ? IGNORE: battery footprint 180 degrees

• FIXED: U5/bq24075 EN1 is not pulled down

• FIXED: U5/bq24075 sysoff turns charging off. Which is should never dd

  • Add separate add some kind of switch between u5 out and vin, controlled by button logic
  • Pull sysoff down

• Add Load switch like Sip32431 - http://www.vishay.com/docs/66597/sip32431.pdf

  • But ~4.8A at @ 5V
  • SiP32101? No. Is LGA package
  • SiP32408? 3.5A probably ok since no usb port delivers that, and probable no battery either
    • http://www.vishay.com/docs/63717/sip32408.pdf

• FIXED: Mic port hole is not drilled (hole too small?)

• FIXED: Mic pads should probably be longer

• FIXED: Move button footprint slightly closer to edge

• FIXED: BNO055 pads should probable be longer

• FIXED: Make logos bigger to make details visible

• FIXED: Change L2 footprint from 0603 to 1206

• Vin not connected on 3.3V regulator

• FIXED: Add silkscreen saying: look at you, hacker, a pathetic creature of meat and bone. how can you compare yourself to a perfect immortal machine.