TinyF and Arduino serial communication

0.Introduction to TinyF

• The TinyF laser ranging module is based on a D-TOF single-point laser sensor, an onboard MCU, and a housing. It features built-in sunlight rejection and anti-cover contamination algorithms, enabling accurate and rapid distance measurement. Even in extremely bright ambient light (100-190K Lux), it can accurately measure even the smallest objects, unaffected by variations in reflectivity, achieving precise ranging of 2m to 4m.

1.Experimental Preparation

• TinyF Laser Distance Measurement Module
• This tutorial uses an Arduino

2.Experimental wiring

Wiring diagram

Note: If you are using a USB to TTL module, refer to the following table for wiring the Arduino and USB to TTL

3. Main code explanation

void parseDistanceData(String &data) {
  // 去除首尾空白字符  Remove the first and last whitespace characters
  data.trim();
  
  // 查找逗号位置 Find the position of the comma
  int commaPos = data.indexOf(',');
  if (commaPos == -1) {
    return;
  }
  
  // 提取距离  Extraction distance
  String distanceStr = data.substring(0, commaPos);
  distanceStr.trim();
  
  // 提取置信度  Extract the confidence level section
  String confidenceStr = data.substring(commaPos + 1);
  confidenceStr.trim();
  
  // 转换为整数 Convert to an integer 
  long distance = distanceStr.toInt();  
  long confidence = confidenceStr.toInt();
  
  if ((distance <=20 || distance>=4000) && distanceStr != "0") {
    return;
  }
  if (confidence == 0 && confidenceStr != "0") {
    return;
  }
  
  // 输出结果 output result
    Serial.print("Distance:");
    Serial.print(distance);
    Serial.print(" mm, Confidence: ");
    Serial.println(confidence);
}

The above program is used to parse data from the TinyF laser ranging module. Only when the protocol is met can the data be correctly parsed.

4.Experimental phenomenon

1.Upload the program provided by the example to the Arduino

2.Connect the wires according to the wiring diagram.

3.The serial port assistant is set to the interface as shown in the figure

4.After power on, the serial assistant will print the distance information

5.Some important parameters of TinyF

Related parameter description

Data format

Data frame structure:

Example: