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Question Frex Hydrobrake USB conversion

Discussion in 'Commercial Simulators and Peripherie' started by principiamacb, Nov 13, 2022.

  1. principiamacb

    principiamacb Member

    Joined:
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    My Motion Simulator:
    2DOF, DC motor, Arduino
    Hi all

    Ive been using some Frex pedals for quite awhile on Iracing and haven't had any issues.

    I cracked open RF2 the other day to give it a blast and found the pedals prevent it from loading into game. That got me thinking, the last time I played RF2 I had to run it in 32bit mode to get it to work.

    It uses a 'control box' that can control a wheel etc but I only use the pedals. That got me thinking surly it cant be that hard to convert to standalone USB using a Leo Bodnar board.

    FrexUSBPedal8b4a_page-0001.jpg

    Heres a diagram I found of how it works with a USB board form Frex but it costs a lot of money and don't really want to import it from Japan if its even available.

    I dont want to use any of the vibration or lights, just the pedals. The brake and clutch are pretty straight forward but the brake runs off 12v. Ive got an external 12v 2amp power supply and found the signal wire that would go to the Leo Bodnar board.

    So my question, To get the board to work dont I need a 5v and ground wire coming out the leo bodnar board too?
    where do they come from?

    Thanks
    principiamacb, Nov 13, 2022
    #1