> For the complete documentation index, see [llms.txt](https://dahl-design.gitbook.io/ddc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dahl-design.gitbook.io/ddc/switch-library/pedals-and-paddles.md). # Pedals & paddles Here we'll cover functions suited for the pedals for your feet and the paddles for your hands. Gear shift functions, clutch systems, brake, throttle and more. ### Calibration An important topic is the calibration of an analog axis. While you can calibrate joystick axis in Windows, I cannot recommend it. DDC's algorithms have chackpoints that trigger then pedals/paddles have been pressed to 100% and released to 0%. A lot of the more advanced features like Launch Button, mode changes, the different dual clutch configurations, etc. depend on this. That means the paddles/pedals should be calibrated in the firmware and no calibrations should be done in Windows. To calibrate the clutches, you'll have to read the values from the paddles when fully pressed and fully released, by using the [serial monitor. ](/ddc/1.-project-planning/analog-inputs.md#reading-a-value) The values will often be a bit erratic. Most reliable readings are when the paddles are properly mounted and all elements of the controller that consumes power are powered up. Your readings might still be a bit erratic. The general idea is: * Use the highest value that your read on your lowest value measurements * Use the lower value that you read on your highest value measurements So if your controller fluctuates between 864 - 873 when paddle is not pressed, and 436 - 444 when pressed, use the values 864 for not pressed and 444 for pressed. If one paddle has higher value on pressed than released and the other paddle is the opposide - it does not matter.The algorithms will take care of it. ### Deadzone A small deadzone is added to work as a buffer on both ends of the paddle range. You can increase the deadzone of the clutches by adjusting the deadzone in 12\_GlobalVariables.ino. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://dahl-design.gitbook.io/ddc/switch-library/pedals-and-paddles.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.