CAN HARDWARE · ESP32-S3 TWAI DUAL-BUS
Tracktuned Connect
Tracktuned Connect is a dedicated automotive Dual-CAN hardware gateway and MDF4 logger powered by an ESP32-S3 dual-core processor. It bridges vehicle CAN telemetry directly to iOS, Android, and desktop devices via low-latency Bluetooth LE and WiFi.
Dual CAN 2.0B
1 Mbps Throughput
Two independent TWAI CAN buses with selectable 120Ω terminating resistors. Bridges ECU and TCU networks simultaneously.
MDF4 Logging
Onboard MicroSD
High-speed continuous raw CAN frame logging directly to MicroSD in ASAM standard MDF4 format for MoTeC i2 / Vector analysis.
BLE Keypad App
iOS & Android
Turns your phone or Apple Watch into a motorsport CAN keypad with momentary, toggle, hold, and rotary modes.
Automotive Power
6V – 36V Wide Input
Integrated automotive TVS load-dump protection, reverse polarity guard, and sleep-mode quiescent current under 1mA.
Wiring Pinout
| Pin | Signal | Description | Recommended Wire |
|---|---|---|---|
| 1 | POWER (VBAT) | +12V / +24V Switched Ignition Source (Fuse with 1A) | 20-22 AWG TXL |
| 2 | GROUND (GND) | Clean Chassis Ground / ECU Power Ground | 20-22 AWG TXL |
| 3 | CAN1_H | CAN Bus 1 High (ECU Network · 500k/1M) | 22 AWG Twisted Pair |
| 4 | CAN1_L | CAN Bus 1 Low (ECU Network · 500k/1M) | 22 AWG Twisted Pair |
| 5 | CAN2_H | CAN Bus 2 High (TCU / Dash / Sensors · 500k/1M) | 22 AWG Twisted Pair |
| 6 | CAN2_L | CAN Bus 2 Low (TCU / Dash / Sensors · 500k/1M) | 22 AWG Twisted Pair |
Bluetooth LE Pairing Walkthrough
- Power on the Connect hardware with vehicle ignition. The blue status LED pulses slowly.
- Open the Tracktuned Connect app on iOS or Android.
- The app automatically discovers the nearby Connect module via BLE advertisement.
- Tap to pair: your keypad layout, active CAN channels, and live telemetry sync instantly in under 1 second.