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DS18B20+  的温度问题



		

			

									
					    ChangeOverTime
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Oct 10, 2022 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    室温正常25摄氏度左右，但是显示是89.3摄氏度，有2件无栅极值，帮忙分析下什么原因?在室内温度正常的情况下，机器显示40多度的原因是什么？
    

    内附：俩张万能表检测图，俩张原理图，以及温度显示图
    

           
    
									
			        
		
    

				
						
        

    
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