# \[PROJECT\] Wireless Digital Shift Knob with ESP32 + ESP-NOW + RealDash (TulioCAN)

**URL:** <https://forum.realdash.net/t/project-wireless-digital-shift-knob-with-esp32-esp-now-realdash-tuliocan/11361>\
**Category:** General\
**Created:** [October 20, 2026, 9:19pm UTC](https://forum.realdash.net/t/project-wireless-digital-shift-knob-with-esp32-esp-now-realdash-tuliocan/11361 "2026-10-20T21:19:49Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![tulio](https://forum.realdash.net/user_avatar/forum.realdash.net/tulio/32/1998_2.png) [@tulio](https://forum.realdash.net/u/tulio)\
**Post date:** [October 20, 2026, 9:19pm UTC](https://forum.realdash.net/t/project-wireless-digital-shift-knob-with-esp32-esp-now-realdash-tuliocan/11361/1 "2026-10-20T21:19:49Z")

</div>

Hi everyone! I wanted to share a custom DIY project I recently completed and validated: a **wireless Digital Shift Knob** integrated with **RealDash**.

The project combines custom hardware (a PCB designed in EasyEDA and manufactured by JLCPCB), C++ firmware, Hall sensors, and 3D printing.

### ⚙ **How Does the System Work?**

The setup was designed to be modular and versatile. It consists of two main hardware units communicating **wirelessly via ESP-NOW** :

1. **In the Shift Knob (Transmitter):**

2. **On the Dashboard (Receiver - TulioCAN):**

### 💡 **Key Features & Versatility:**

- **Standalone Knob:** You can use just the digital shift knob with its OLED display without needing a digital dashboard.

- **Dashboard Only:** Transmit gear position directly to RealDash using the TulioCAN receiver module.

- **Full Setup:** Combined gear display on the shift knob + RealDash instrumentation on the dashboard display.

### 🛠 **Custom Development:**

Everything was designed and built from scratch:

- **Custom PCB:** Designed and optimized for JLCPCB fabrication.

- **Software/Firmware:** Custom C++ code managing ESP-NOW wireless links, Hall sensor positioning reading, and serial protocol streaming for RealDash.

- **3D Enclosure:** Custom 3D-printed shift knob housing the electronics and OLED screen smoothly.

### 📺 **Project Demonstration & Bench Testing Video:**

Check out the video showcasing the PCB assembly, bench tests, Hall sensor gear reading, and RealDash integration:

👉 **[Watch the video on YouTube](https://www.youtube.com/watch?v=z5Y2L94oLSQ)**

 ![d09d641d-c5d2-45e4-b4a2-9ac6bd9d2f29](https://forum.realdash.net/uploads/default/original/2X/1/19c488a63e3eead3323fac22a85fb3a8cdf1d061.jpeg)

Feel free to share your thoughts, ask questions about ESP-NOW communication logic, Hall sensor magnet tuning, or RealDash XML setups! 👊🚗💨