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500Hz 50m ToF Single-point Ranging Lidar Module
The STA-B50X laser ranging radar is a new laser ranging module launched by our company for fields such as drones, floor cleaning robots, and industrial robots. This product is based on the DTOF (Direct Time Of Flight) ranging principle and features small size, low cost, stable performance, and strong resistance to light interference. The product is easy to use, flexible to install, and provides a communication command set and upper computer, making it convenient for secondary development and highly cost-effective.
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Product Description
Drone altitude control and obstacle avoidance
Robot obstacle avoidance
Industrial grade light curtain
AGV/UAV obstacle avoidance
High speed measurement and safety monitoring in the fields of transportation and industrial automation
Robot obstacle avoidance
Industrial grade light curtain
AGV/UAV obstacle avoidance
High speed measurement and safety monitoring in the fields of transportation and industrial automation
Detailed parameters of the product
| Order number | Model | STA-B50X |
| 1 | Ranging | 0.03-12m(10% Reflectivity), 0.03-50m (90% reflectivity) |
| 2 | Range hole | 3cm |
| 2 | Range frequency | 500Hz |
| 3 | Ranging accuracy | ±3cm (0.2~6m), 1%(≥6m) |
| 4 | Repeatability precision | ±10mm |
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Resolution ratio | 1mm |
| 5 | Environmental light resistance | 100K Lux |
| 6 | Laser wave length | 905nm |
| 7 | Laser level | Class1 |
| 8 | Angle of field | 1.7° |
| 9 | Indicate the laser wavelength | N/A |
| 10 | Indicate laser level | N/A |
| 11 | Input voltage | 3.3-5V |
| 12 | Peak point current | 120mA |
| 13 | Average current | 80mA |
| 14 | Average power consumption | 0.4W |
| 15 | Communication mode | UART TTL / IIC |
| 16 | Levels of protection | N/A |
| 17 | Size (length x width x height) | 18.7x11.8x13.3mm |
| 18 | Weight | 2g |
| 19 | Working temperature | -30℃~+65℃ |
| 20 | Cable specifications | 4pin 1.25mm terminal, 10cm tinned loose wire |
| 21 | Customization scope | Supports customization of external structure, input voltage and output protocol |
Pin definition
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||
| Pin | Define / Wire color | Explain |
| 1 | TX（Yellow） | RX |
| 2 | RX（Green） | TX |
| 3 | 3.3-5V（Red） | Power supply + |
| 4 | GND（Black） | Power supply - |
Module size
Range measurement characteristics
Because the detection light source has a certain divergence Angle, in order to obtain an accurate distance value during actual measurement, it is required that the surface area of the measured object is greater than the diameter of the light spot at this distance.
The spot diameter of STA-B22A at different distances is shown in the following table:
The spot diameter of STA-B22A at different distances is shown in the following table:
| distance | 1m | 2m | 5m | 10m | 20m |
| spot diameter | 6cm | 12cm | 30cm | 60cm | 1.2m |
Protocol
Communication interface
| UART | |
| Default rate | 46, 608 (adjustable) |
| data bit | 8 |
| stop bit | 1 |
| even-odd check | not have |
Output format
The input and output of this product are in 16-bit little-endian mode
| Frame header | Distance is two bytes | check bit | |
| 5C | 02 | 11 | EC |
Byte output
5C: Fixed frame header of 1 byte
02 11: The two bytes of distance value indicate that the measured distance is 4354mm, little-end mode, range 0-65535, and output 20000 when it cannot be measured
EC: Check bit byte, from the second byte 02 to the last second byte 11, sum and reverse
02 11: The two bytes of distance value indicate that the measured distance is 4354mm, little-end mode, range 0-65535, and output 20000 when it cannot be measured
EC: Check bit byte, from the second byte 02 to the last second byte 11, sum and reverse
UART instruct
| Order number | Functional description | Up | Down | Remarks |
| 1 | Read the product serial number | 5A 0D 02 0D OD checksum | 5A 8D 02 10 01 checksum | 10 01 indicates that the product serial number is 272: small end mode, and the product serial number displayed on the upper computer is: S00272 (S is added in front of the 5-digit number) |
| 2 | Read the software version number | 5A 16 02 16 16 checksum | 5A 96 02 03 02 checksum | 03 02 indicates that the product software version number is V2.3: little-endian mode, 02 indicates 2, 03 indicates 3, and a dot (.) is added in the middle |
| 3 | Modify the baud rate | 5A 06 02 80 04 checksum | 5A 86 02 80 04 checksum | 60 00(9600)C0 00( 19200)80 01(38400)80 04( 115200)00 09(230400)00 0A(256000)00 12(460800)Other baud rates are not supported |
Verification function: The above verification bytes are all using this verification function
Starting from the second byte and ending at the second to last byte, sum and invert
uint8_t Check_Sum(uint8_t *_pbuff, uint16 t cmdLen)
{
uint8_t cmd_sum=0;
uint16_t i;
for(i=0;i<_cmdLen;i++)
{
cmd_sum += _pbuff[i];
}
cmd_sum = (~cmd_sum);
return cmd_sum;
}
Starting from the second byte and ending at the second to last byte, sum and invert
uint8_t Check_Sum(uint8_t *_pbuff, uint16 t cmdLen)
{
uint8_t cmd_sum=0;
uint16_t i;
for(i=0;i<_cmdLen;i++)
{
cmd_sum += _pbuff[i];
}
cmd_sum = (~cmd_sum);
return cmd_sum;
}
Quick test
Test material list: TTL to USB adapter board, 5V power supply (battery, power bank, computer USB port can be used), upper computer/serial port assistant. After STA-B50X is correctly connected, select the baud rate and click OK to observe the required data on the upper computer.
The upper computer is as follows:
Region 1: Set the corresponding serial port parameters and click Connect
Region 2: Set the baud rate
Region 3: Read the product serial number
Region 4: Read the software version number
The upper computer is as follows:
Region 1: Set the corresponding serial port parameters and click Connect
Region 2: Set the baud rate
Region 3: Read the product serial number
Region 4: Read the software version number
Use precautions
-The product has no reverse connection and overvoltage protection. Please supply power and connect correctly according to the specification book.
-The laser of the product is Class1. Do not look directly at the lens after power-on.
-When used in dusty environments, it is recommended to add red glass or acrylic panel (transparency of 905nm band is not less than 85%) outside the lens of the product.
-When contacting the product, please wear anti-static gloves to avoid product failure.
-The product may fail when measuring high-reflection objects (such as 3M tape) and mirrors.
Update your resume
-The laser of the product is Class1. Do not look directly at the lens after power-on.
-When used in dusty environments, it is recommended to add red glass or acrylic panel (transparency of 905nm band is not less than 85%) outside the lens of the product.
-When contacting the product, please wear anti-static gloves to avoid product failure.
-The product may fail when measuring high-reflection objects (such as 3M tape) and mirrors.
Update your resume
| Documentation Edition | refresh time | Update content |
| V1.0 | 24/12/30 | According to the current design scheme, the first edition is organized |
Note: If there is any update of the version, no further notice will be given, subject to the product.
Hot Tags: 500Hz 50m ToF Single-point Ranging Lidar Module, Manufacturers, Suppliers, Factory, China, Made in China, Customized, High Quality
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