Project:
DE: [https://simracing-pc.de/2026/02/24/diy-projekt-mini-button-box-mit-60-funktionen-und-oled-bildschirm/](https://simracing-pc.de/2026/02/24/diy-projekt-mini-button-box-mit-60-funktionen-und-oled-bildschirm/)
EN: [https://simracing-pc.de/en/2026/02/24/diy-project-mini-button-box-with-60-functions-and-oled-screen/](https://simracing-pc.de/en/2026/02/24/diy-project-mini-button-box-with-60-functions-and-oled-screen/)

Web:
[https://simracing-pc.de](https://simracing-pc.de)

Discord:
[https://discord.gg/V5ZKUj3weJ](https://discord.gg/V5ZKUj3weJ)

Key Features

• 3 Profiles (A, B, C): Quickly switch between 3 setups (e.g., GT3, Rally, Formula) for a total of 60 gamepad buttons.
• Precision Encoder: Uses state-table logic for error-free input without bouncing (debouncing).
• Live Dashboard: 128x64 OLED shows active mode, profile, and rotary animations in real-time.
• Plug & Play: Easy installation via .uf2 file (no programming knowledge required for the user).
• On-Device Setup: Change names and slot counts directly on the device using the encoder.
• SimHub version with Telemetry support for up to 5 variables.

Required Hardware

• Microcontroller: Raspberry Pi Pico (RP2040)
• Display: 0.96" OLED (SSD1306, I2C)
• Input: EC11 Rotary Encoder with push-button function
• Enclosure: 3D printed case (STL files included in the project)

 Device Controls

• Rotate: Sends button presses (e.g., ABS +/-, TC +/-).
• Click: Next mode (e.g., from "ABS" to "TC").
• 0.5s Hold: Profile change (A -> B -> C).
• 2.0s Hold: Setup menu for editing directly on the device.