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VL53L1 laser ranging

Overview

VL53L1X is different from the VL53L0X module. The measured distance of this module is within four meters. You can add a mold to it to increase its performance. The IIC interface has better accuracy, but it is more difficult to weld and requires higher welding requirements.

The analog IIC is written as follows:

uint8_t VL_IIC_Write_1Byte(uint8_t SlaveAddress, uint16_t REG_Address, uint8_t REG_data)

{

IIC_start();

IIC_Send_Byte(SlaveAddress );

if (IIC_wait_ack())

{

IIC_stop(); //Release the bus

return 1; //Exit if no response

}

IIC_Send_Byte(REG_Address >> 8);

if (IIC_wait_ack()) //Wait for ACK

{

IIC_stop();

return 1;

}

IIC_Send_Byte(REG_Address & 0x00ff);

if (IIC_wait_ack()) //Wait for ACK

{

IIC_stop();

return 1;

}

delay_ms(1);

IIC_Send_Byte(REG_data);

if (IIC_wait_ack()) //Wait for ACK

{

IIC_stop();

return 1;

}

IIC_stop();

return 0;

}

uint8_t VL_IIC_Read_1Byte(uint8_t SlaveAddress, uint16_t REG_Address, uint8_t *REG_data)

{

IIC_start();

IIC_Send_Byte(SlaveAddress); //Send write command

if (IIC_wait_ack())

{

IIC_stop(); //Release the bus

return 1; //Exit if no response

}

IIC_Send_Byte(REG_Address >> 8);

if (IIC_wait_ack())

{

IIC_stop(); //Release the bus

return 1; //Exit if no response

}

IIC_Send_Byte(REG_Address & 0x00ff);

if (IIC_wait_ack())

{

IIC_stop(); //Release the bus

return 1; //Exit if no response

}

delay_ms(1);

IIC_start();

IIC_Send_Byte(SlaveAddress | 0x01); //Send read command

if (IIC_wait_ack())

{

IIC_stop(); //Release the bus

return 1; //Exit if no response

}

*REG_data = IIC_Read_Byte(0);

IIC_stop();

return 0;

}

Test code:

uint8_t VL_Init(void)

{

uint8_t res;

IIC_Init();

VL_IIC_Read_1Byte(VL_ADDR, module_type, &res);

if (res == 0xCC) //The device ID is correct

{

UART_printf(UART0_BASE, "SUCCESS! ");

return 1;

}

else

{

UART_printf(UART0_BASE, "failed! ");

}

return 0;

}

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-20 01:09:15

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