เท่าที่ดูคิดว่าน่าจะเป็นที่ Library ครับ อาจจะไม่ตรงกับ code ครับ  

#include <SharpIR.h> #define ir A0 #define model 20150 // ir: the pin where your sensor is attached // model: an int that determines your sensor: 1080 for GP2Y0A21Y // 20150 for GP2Y0A02Y // (working distance range according to the datasheets) // updated by Ahmad Nejrabi from Robojax.com // get latest datasheets: http://www.sharp-world.com/products/device/lineup/selection/opto/haca/diagram.html // model: an int that determines your sensor: /* * GP2Y0A02YK0F --> "20150" GP2Y0A21YK --> "1080" GP2Y0A710K0F --> "100500" GP2YA41SK0F --> "430" */ SharpIR SharpIR(ir, model); void setup() { // put your setup code here, to run once: Serial.begin(9600); } void loop() { delay(2000); unsigned long startTime=millis(); // takes the time before the loop on the library begins int dis=SharpIR.distance(); // this returns the distance to the object you're measuring Serial.print("Mean distance: "); // returns it to the serial monitor Serial.println(dis); unsigned long calcTime=millis()-startTime; // the following gives you the time taken to get the measurement Serial.print("Time taken (ms): "); Serial.println(calcTime); } เกิด ERROR ด้านล่างนี้ครับ C:\Users\hp\AppData\Local\Temp\Rar$DIa11192.38298\SharpSensorCm\SharpSensorCm.ino: In function 'void loop()': SharpSensorCm:31:19: error: 'class SharpIR' has no member named 'distance'; did you mean 'getDistance'? int dis=SharpIR.distance(); // this returns the distance to the object you're measuring ^~~~~~~~ getDistance Multiple libraries were found for "SharpIR.h" Used: C:\Users\hp\OneDrive\เอกสาร\Arduino\libraries\SharpIR Not used: C:\Users\hp\OneDrive\เอกสาร\Arduino\libraries\SharpIR-master Using library SharpIR at version 2.0.1 in folder: C:\Users\hp\OneDrive\เอกสาร\Arduino\libraries\SharpIR exit status 1 'class SharpIR' has no member named 'distance'; did you mean 'getDistance'?