Products Mentioned

AD7150 Production
The AD7150 delivers a complete signal processing solution for capacitive proximity sensors, featuring an ultralow power converter with fast response time...
Datasheet
AD7150 on Analog.com

AD7143 Obsolete
The AD7143 is an integrated capacitance-to-digital converter (CDC) with on-chip environmental calibration for use in systems requiring a novel user input...
Datasheet
AD7143 on Analog.com

Thread Details

  • State Verified Answer
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 76 subscribers
  • Views 511 views
  • Users 0 members are here
Options 

        

            Post
             Go back to editing
        

    

    


    

    









		


















	
	
			
	
			
		
	
	
		

	    
	    
	    		
Driving AD7150 as a slave via I2C

		
	
				

			

									
					    anaggarw
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jan 7, 2014 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
		    			
    
			    
    Hi All,
    
 
    I am trying to figure out how to control my AD7150 eval board using an external microcontroller (Cypress PSOC 4 Pioneer dev. kit). Does anyone have a step-by-step solution to do this, preferably with application code in the C programming language? More specifically, I'm trying to retrieve data from the AD sensor, convert it into a string, and pipe it through a serial port.
    
 
    I've also recently obtained some AD7143 chips which I guess I will have to hand-solder onto a proto-board. At least on the software side, if not the physical configuration, is achieving the same goal with these chips as opposed to the AD7150 board pretty much the same? Or is it significantly different?
    
 
    Thanks so much!
    
			
    
			
									
		                             
                        

    
    
                                            
                 ad7150
                
                                                    
                 ad7143
                
                                                    
                 Integrated/Special Purpose A/D Converters
                
                                                    
                 Capacitive-to-Digital and Touch Screen Controllers
                
                                
            
    
    
    
		
    

				
				        
        		
    
			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		
    

        
        
        
    
					
    
			
    


    
















    
	
    
	
    
					



			








	
	
	
	



Parents
	
      
	

    • 
	
      



	
		
	
	



      
	
      
		
      
							
					
      
		
      
		    
		    		    
			
				
									
							        
			
			
			
        
            
						
                            
            
            				
            
                on Jan 9, 2014 4:40 PM
            
            
						
			            		
        
		
										0
					
	
        

		
		
        
		
        
                                
                                                            
        
					
        Hi Sean,
        
 
        Thanks for your response! Yes, I plan on connecting via J5. Additional question, though, how do I make that physical connection? From the external board, I'm running jumper wires, but on the AD7150, the pins are male rather than female. Do I just use alligator clips? That sounds like a weird way to make a digital connection. Also, must I, and how do I, tie the grounds of the two boards together?
        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
						
				
				
		
		
        
			
		
        
	
        

        

        • 

	
      



Reply

        


      • 
	
        



	
		
	
	



        
	
        
		
        
							
					
        
		
        
		    
		    		    
			
				
									
							        
			
			
			
          
            
						
                            
            
            				
            
                on Jan 9, 2014 4:40 PM
            
            
						
			            		
          
		
										0
					
	
          

		
		
          
		
          
                                
                                                            
          
					
          Hi Sean,
          
 
          Thanks for your response! Yes, I plan on connecting via J5. Additional question, though, how do I make that physical connection? From the external board, I'm running jumper wires, but on the AD7150, the pins are male rather than female. Do I just use alligator clips? That sounds like a weird way to make a digital connection. Also, must I, and how do I, tie the grounds of the two boards together?
          
			
          

		
			
	      

		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
						
				
						
				
				
		
		
          
			
		
          
	
          

          

          • 


        


Children
	
        No Data