BoardPilotBenewake TF-Luna LiDAR (UART mode) with ESP32
Supply 5 V
Bus GPIO
Measures distance
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| 5V | Power | VIN | Pin 1. Needs 5 V: use VIN |
| RX | Input (the ESP32 drives it) | D25 | Pin 2. UART: the part receives data here. Connect to an ESP32 TX pin |
| TX | Output (the part drives it) | D26 | Pin 3. UART: the part sends data here. Connect to an ESP32 RX pin (115200 baud, 3.3 V level) |
| GND | Ground | GND | Pin 4 |
| CFG | Not wired to the ESP32 | — | Pin 5, mode select. Leave unconnected for UART (GND at power-up = I2C) |
| MUX | Output (the part drives it) | D27 | Pin 6, on/off output. Optional |
Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.
This module is sold for 5 V. Its outputs may be 5 V: use a level shifter or a voltage divider on ESP32 inputs.
Sources
- Benewake TF-Luna product manual, Pins 1 +5V, 2 RXD/SDA, 3 TXD/SCL, 4 GND, 5 configuration, 6 multiplexing output
- Benewake TF-Luna product manual, Supply 3.7 to 5.2 V; UART 115200 baud, LVTTL 3.3 V; range 0.2 to 8 m
Try it in 3D in BoardPilot
Learn the basics
Lesson: UART, I2C and SPI Lesson: GPIO: pins in and out Lesson: Hardware basics for software developers UART (serial port) Baud rate GPIO Level shifter Logic level (HIGH and LOW)
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Part data: CC BY 4.0, free to reuse with credit to BoardPilot.