Ketotek  Switch (KTA007-1) 
  
  
    
  Available from:
      
      
    Amazon.co.uk
    
    
    
    
    
    
    
    
    
    
    
    
    
      Install method:
    
    
      
      USB to Serial
      
    
    
    
| GPIO # | Component | 
|---|---|
| GPIO00 | None | 
| GPIO01 | None | 
| GPIO02 | None | 
| GPIO03 | None | 
| GPIO04 | None | 
| GPIO05 | Button 1 | 
| GPIO09 | None | 
| GPIO10 | None | 
| GPIO12 | Relay 1 | 
| GPIO13 | None | 
| GPIO14 | None | 
| GPIO15 | None | 
| GPIO16 | None | 
| GPIO17 | None | 
Configuration
  
  {"NAME":"KETOTEK KTSS1NU","GPIO":[0,0,0,0,0,32,0,0,224,0,0,0,0,0],"FLAG":0,"BASE":18}
  There are headers for GND, VCC, RX, TX and GPIO 0 on the PCB but it required soldering to connect to easily.