2-CHANNEL POWER MODULE FOR BREADBOARDS 3.3V/5V
        
    
    
            
    
        
    
Modules
            BUTTON AND DISPLAY MODULE WITH TM1638 CHIP
        
    
    
            
    
        
    
            2-CHANNEL LOUDSPEAKER PROTECTION
        
    
    
            
    
        
    
            VOLUME AND TONE CONTROL - PREAMPLIFIER
        
    
    
            
    
        
    
            Proximity Card Reader with USB Interface
        
    
    
            
    
        
    
            DC TO PULSE WIDTH MODULATOR
        
    
    
            
    
        
    
            USB EXPERIMENT INTERFACE BOARD