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EN S3 BLE Installation
Use an ESP32-S3 DevKitC-1 N16R8 and SN65HVD230 3.3 V module. This adapter connects to comma BLE and does not require a Jetson USB CAN adapter for its transport.
Photographed build instructions (Korean) · First-install PC ZIP
| S3 | SN65HVD230 | Function |
|---|---|---|
| 3V3 | 3.3V | Supply |
| G | GND | Common ground |
| GPIO4 | TX | Transmit |
| GPIO5 | RX | Receive |
These direct connections apply to the 3.3 V SN65HVD230, not a 5 V TJA1050. The linked build guide covers USB firmware installation, vehicle H/L, termination and status LEDs.
The BLE name is Carrot-B1. A single new matching name/service can enroll automatically while parked; subsequent control authenticates the enrolled board's key. The name alone is not authorization to control an arbitrary board.
Keep the S3 enrollment while using PEAK/CANable too. The first connected adapter with matching CAN data owns output; the others wait. A BLE connection badge does not, by itself, mean S3 currently owns physical indicator output.