break out boards

Projects General Guidance
1

hi, i keep blowing up these breakoutboards

https://www.google.nl/search?q=keyes+140c07&biw=1067&bih=527&source=lnms&tbm=isch&sa=X&sqi=2&ved=0ahUKEwjpgOTpx_bRAhWJC8AKHVcrApcQ_AUIBygC#imgdii=NqyNiycItPIp3M:&imgrc=a4xwCj8-b39KxM:

does anybody have a schematic for that cus if i study the board the ground is connected to nothing so i don't understand

i want to make my own breakoutboard with irf840's

thanks

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