Ok i am making a 3d printer and i connected my endstops wrongly and after that my arduino mega2560 voltage regulator AMS11117 5.0 LD518 and current protector gets very heated and arduino is working only for 20 seconds when i connect.
After connecting to pc it both ic's heats up and arduino automatically disconnect from pc after 20 seconds??
So whats the reason and cheap solution for this????
theRoBobuilder:
So whats the reason and cheap solution for this????
So the regulator and the fuse gets hot, so presuambly something else is getting hot as well ?
I doubt many of us can work out what 'i connected my endstops wrongly' means.
Try a replacement Mega2560, they are cheap, only £7 on eBay.
Possibly one or more pins on the large Atmel chip may be internally shorted, causing a heavy current draw.
Do things get hot when everything connected to the Mega board is removed and a very simple blinky type program is loaded?
no only ams1117 and currect protector gets hot anything else working fine
see attachment
Remove the AMS1117 and polyfuse. For a 3D printer, you cannot use the on-board regulator anyway - I suppose you have found that out.
Get a 5 V regulated power supply of some sort (with short-circuit protection), adequate to provide the necessary current, and connect it to the 5 V terminal of your Mega in addition to whatever other components require 5 V. The 5 V terminal is really an input, not an output. If that does not work, replace the Mega 2560 and remember not to use the on-board regulator on the new one.