i am quite new to PCB and circuit designs. I am trying to build two PCB consisting of ESP8266-12E and Shift Register (SN74HC595N) as a core of it and a high voltage relay control circuit. I have designed a low power PCB design to control via manual switchs which can be connected on terminal.
I am using SN74HC595N because there is a ready library for arduino to control, which makes things easier to code.
here is how my PCB looks like:
here the RED tracks are for jumpers i guess, that will help to keep things on single layer PCB.
To control the high voltage (220V) appliances i kept things on the another PCB. This is a PCB design not executed anything yet. Need professionals feedback to understand in case if i need to improve something in this. Because i know i might have made mistakes while designing. So just to educate myself i am trying to build this PCB Design. I try to keep proper distance between the tracks and keep the expose copper area as well, so i it can allow higher current to flow.
Note: I am not going to build this relay control circuit. As it might be dangerous, just trying to understand where to improve it.
Also one more thing, is it a good idea to keep ground plane around 220v AC supply in relay circuit? Because i have seen in ready modules available in market they keep it, but i am not sure how much it will be helpful.
Here is complete schematic diagram for the same.
Any feedback from your end will be helpful to understand and gain more knowledge.
As per the suggestions here are the new updates, i try to maintain as much gap as possible on the relay (HV - Circuit 2) board circuit. To keep low voltage component as far as possible.
With circuit 1, i just changed the whole layout basically, to bring 2 layers to make things easy and also to bring more flexibility on the platform. Please feel free to keep the reviews posted.
TOP VIEW of Circuit 1
BOTTOM LAYER VIEW of Circuit 1
Thank you so much for your kind support guys!