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another arduino





HEHEHE

arduino and relay side
copper_side_pcb see at the top the uln2004
 Today i make a simple 24 volt relay controller with arduino and uln2004



arduino and uln2004

arduino and relay side
copper_side_pcb see at the top the uln2004
 Today i make a simple 24 volt relay controller with arduino and uln2004



ULN2004 + Arduino Mini Pro

arduino and relay side
copper_side_pcb see at the top the uln2004
 Today i make a simple 24 volt relay controller with arduino and uln2004