I'm making a lock which is using arduino and a bleutooth module. I used the link at the bottom te try and replicate that but it doenst seem to work for me. When i connect the battery the lock opens but the arduino, bleutooth module and relais dont turn on. can someone please help me on how to fix this?
Hello maartenv13
Welcome to the worldbest forum.
We need some additional information.
Post your sketch, well formated, with well-tempered comments and in so called code tags "< code >" and a detailed circuit diagram to see how we can help.
Have a nice day and enjoy coding in C++.
Because you haven't connected power supply to Arduino
forgot the barrel plug for the uno power??
sorry.. ~q
so when i connect the arduino with a barrel plug it should work?
You can power it through DC Barrel Jack with voltage between 7-12v or through USB 5v fix
Hi Newbie welcome to the community
Kindly go through it
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