Radar Introduction
As a low-cost single-line high-precision laser radar sensor, the T-mini Plus radar uses the TOF measurement method. The T-mini Plus radar is small in size, so it can be built into the robot body to optimize the space utilization of the robot. Although it is small in size, it integrates a variety of long-range measurement optimization algorithms, and the range of 80% reflectivity can reach 12.0m; at the same time, its power system uses a customized and optimized brushless DC motor with a service life of more than 10,000 hours.
Specifications are as follows:
| Parameter | Value | Description |
|---|---|---|
| Ranging frequency | 4000Hz | - |
| Scanning frequency | 6Hz-12Hz | Software speed adjustment, factory default 6Hz |
| Ranging range | 0.05m-12m 0.05m-4m | 80% reflectivity 10% reflectivity |
| Scanning angle | 0-360° | - |
| Ranging accuracy | 20mm | 0.05m＜distance≤12m |
| Angular resolution | 0.54° | - |
| Pitch angle | Typical value: 0.75° | - |
| Power supply voltage | 5.0±0.2V | Too high will damage the device, too low will affect performance or even fail to measure distance |
| Power-on current | Typical value: 840mA | Power-on instantaneous peak current |
| Working current | Typical value: 300mA | System working, default motor speed |
| Working temperature | -10℃-45℃ | Typical value: 25℃ |
| Weight | 45g | Bare weight |
Interface definition: T-mini Plus external physical interface terminal is GH1.25-4P, which realizes system power supply and data communication.
| Pin | Type | Description | Default | Range | Notes |
|---|---|---|---|---|---|
| VCC | Power supply | Positive supply voltage | 5V | 4.8V-5.2V | / |
| Tx | Output | System serial port output | / | / | Data flow: radar->peripheral |
| Rx | Input | System serial port input | / | / | Data flow: peripheral->radar |
| GND | Ground | Negative supply voltage | 0V | 0V | / |
Serial port configuration parameters:
| Baud rate | Data bit | Stop bit | Parity bit | Flow control |
|---|---|---|---|---|
| 230400 | 8 | 1 | None | None |
For more information about the radar, please refer to the official document [YDLIDAR T-mini Plus Development Manual_V1.0 (231222).pdf].