the lights on the arduino are all glowing i.e. the L,TX,RX and on
when i connect it to my pc or 12 v power supply, all the lights come on. It is not recognised by the arduino software
i tried uploading a blank sketch, changed the serial ports, plugged it in other sockets, other computers, all to no avai. I know nothing is wrong with the board as i have used it before and it was working just an hour before this issue.
This was actually for an rfid door lock system. I had made some months ago, i upgraded it by adding led’s and a buzzer and now decided i wanted a little more. I added a countdown timer for when the door closed. But as i was testing something happened and on next reboot i got this error.
My hypothesis is that i connected too many things to the board.
I found a working way of utilizing the analog pins for the 7 segment display as there was not much space left. So basically i had an mfrc522(3.3V), a 5V servo, a buzzer, two led’s and a seven segment display.
I agree with you, and although we know the solution is relative simple I will skip answering it as well. This is type of posting is just a waste of our time.
Hi i am so very sorry about this. I am a newbie and dont know the rules.
Please assist me. I need to do this project quickly..
I had posted this same topic eairlier and didnt recieve much help. so i posted it again and sent links on other topics wanting urgent help with this issue. I am sorry because i didnt know this was'nt allowed. Please help me.
WARNING : repeatedly asking for help without allowing a reasonable time for responses is almost as bad as spamming links to this thread far and wide across the forum