Hi everyone
just signed up to this forum as iv been doing electronics now for over a year and have read various differnt answers about this question
i mainly use arudino stuff atm and as i work in a computer shop we normally have loads of spare 12V DC Power supplys from routers scanners ect which i can use for free.
now im having problems using these as when i read there voltage with a multi meter im getting a reading of 16V - 18v. which screws up the arduino voltage regulator thus not giving me a true 5v on the arudino.
iv read various differnt answers to this question from cheap power supplys just being rubbish to all power supplys are like this and will read 12v when there load on them (which with my arudino it drops to about 14v)
can some one give me a proper answer?
just signed up to this forum as iv been doing electronics now for over a year and have read various differnt answers about this question
i mainly use arudino stuff atm and as i work in a computer shop we normally have loads of spare 12V DC Power supplys from routers scanners ect which i can use for free.
now im having problems using these as when i read there voltage with a multi meter im getting a reading of 16V - 18v. which screws up the arduino voltage regulator thus not giving me a true 5v on the arudino.
iv read various differnt answers to this question from cheap power supplys just being rubbish to all power supplys are like this and will read 12v when there load on them (which with my arudino it drops to about 14v)
can some one give me a proper answer?