I am trying to build a small circuit using an ESP8288-12E, 4 5V relays and a 74HC595 shift register as the main components. To power the whole circuit I am using a Hi Link HLK 5M05 5V/5W switch power supply module.
Here is how I planned the whole circuit:
If it is difficult to see in this image then I can provide PDF as well.
I took this AMS1117-3.3 to get 3.3V from my 5V power supply. Instead of 3.3C, I am getting 4.2V on my PCB. I am not sure why this is happening.
I am attaching my EasyEDA file for the PCB design also.
One more issue I am facing is that when i take my multi-meter probes near to the circuit the relays are triggering automatically. I didn't connect the ESP8266-12E on the PCB yet, as I am not getting proper voltage on ESP8266-12E VCC pin.
Any suggestions, why this issue might be happening? Any suggestions will be helpful!
If someone wants to have an EasyEDA access I can provide for this project so can visualize the same issue more easily.
Here is the link of the same project.