Excessive heat from my l7805cv voltage regulator? Answered
Hi, I'm a newbie and I've set up a programme using an Arduino Nano to build a high speed photography project using Bluetooth (from a guy called ZHUT on youtube).
I've used his schematic and his App and it's almost there, but the l8705cv regulator is heating up fast (almost too hot to touch) after a few minutes( with a heatsink). I'm using a 9 volt dc adaptor, power coming out is 5 volts. The trigger threshold numbers (1023) don't come up on the app. to start the programme running, stays at zero. I've never used a schematic before, so I think I've wired up something wrong to cause this.
Any suggestions would be really welcome, as I've spent a long time on this and I'd love to get it going.
I'll send photos, hope they will help, thanks