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- All mounting holes are kept away from the edge of the board
- There is adequate support for all the heavy components and connector plugs
- Large boards should have more than 4 mounting points
- Make sure that edge mounting holes are about 2.7mm radius an are at least 3mm away from each edge. Lock these components after placement.
- Make sure there is a keepout/polygon cutout around mounting holes -> cannot be on the keepout layer → has to be copied on the bottom and top layers
Board - Connectors
- All power input connectors are 2-pin Molex Micro Fit (with the correct GND/PWR orientation)
- Unless higher current is required, under special circumstances
- Easy attachment point for an oscilloscope probe GND - test points with the 'test point' part from digikey work well
- Make sure there are enough GND test points!
- Headers and pins for all communication protocols - for now, 0.1" headers, to standardize on a debug connector
- I2C
- SPI
- etc
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