(FRC) (FTC) Technical references, schematics, voltages, etc. - cwm9cwm9/TTGT-FTC-FRC GitHub Wiki

RoboRio 2.0:

• Specifications (must download as PDF) - https://www.ni.com/docs/en-US/bundle/roborio-20-specs/page/specifications.html
  • Input and ouput pin voltage ranges (VIH, VIL, VOH, VOL)
• User Manual - https://www.ni.com/docs/en-US/bundle/roborio-20-umanual/page/umanual.html
  • ("Pinouts") Pin signal names/description/direction and their ground references
  • ("Hardware block diagram")
  • ("Interfaces") Pin voltages and pullup/pulldown resistor values

Arduino: Each model uses a different processor and has a different schematic. Luckily, this information is easy to Google. For example:

• Uno R3
  • Schematic
  • Processor data sheet
    • Pin voltages and pullup/pulldown resistor values: Section 28.2, DC Characteristics