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Main E-Board Components

Wiring the Eboard​

This was last year's eboard

LastYearsEboard

roboRIO 2.0​

The RoboRIO is the motherboard of the robot. The I2C port, SPI port, and RS232 Port on the roboRIO are sometimes used, but you don't need to understand them that deeply: just know where they are. If you want to you can study them. Do understand how to wire the RSL, any sensors (Digital and analog), cameras, servos, how to connect it to the CAN bus and how to power it. Here is a very basic walkthrough of the roboRIO RoboRIO diagram

Power Distribution Hub (PDH)​

Please note that we will be using the PDH, NOT the PDP. On wpilib look at the REV diagram NOT the CTR diagram.​

We use this to distribute power to the entire robot. Please make sure that you understand which fuses to use, and how to wire CAN to the PDH. PDH labeled

  • Use this link, and you can scroll to the bottom and click around to get more information pertaining the PDH (We suggest looking at Wiring it, the status LED patterns, and learn how to troubleshoot it) PDH information
  • Make sure you understand its capabilities and features

Voltage Regulator Module (VRM)​

Can increase/decrease (step up/step down) voltage that goes through it. We use this for the Network switch and for the radio.

VRM

PCM (Pneumatics Control Module)​

As of now, do not have the new PCM, so for the PCM study the old PCM (the CTR one)​
  • We use the PCM to control the compressor, the pressure switch, and the solenoids.
  • It can support both 12V and 24V solenoids
    • We must manually adjust the jumper in the VSOL slot, to switch between 12V and 24V (we can't use both at the same time)
  • Powered directly by the PDH, and uses CAN to communicate with the e-Board

PCM

Radio and Network Switch​

  • The radio lets us wirelessly communicate with the robot
  • The network switch gives us access to more ethernet ports
  • The wiring for the new radio is a bit different. See this diagram

Radio and Switch wiring

  • We can either use the VRM 12V 2A port or the PDH low current channel to power it. Then the ethernet goes from the roboRIO to the rio port on the radio, On the other side we get the ethernet from the DS port, and not the AUX1 port.
  • Scan through this website. Ignore the mechanical specifications/diagrams. Instead focus on mounting options, status LEDS, the ports, etc. VH-109 FRC Radio
  • This is a network switch

networkSwitch