I found this SMD-based relay board done from scratch(can be embedded in my sketch if i buy the components (cheap) : https://fritzing.org/projects/smd-4-x-relay-board
However, I want to use this relay I have and design it from scratch (smaller in size and save space on project and is available in 2 and 4A versions) and make this a solid state relay system. The size/pins of the relay is different.
But since I see/use a lot of these types of boards and they all have similar circuits as the first link part. (I am currently using Sainsmart 8-ch-ssr-5a-dc-dc-5v-220v-solid-state-relay but want to make it since I don’t know if I can embed it in my sketch natively to save space in PCB/Prototype and also to be able to route the triggered side without wire headers but route them manually to whatever device it is powering/sourcing power from(driver side circuit) instead.
So there are three requests: 1)the part for Kyotto relay, 2)navigate me to another DC-DC solid state relay project if it exists, and 3)small description/advice on if i can just take the 4-channel DC-DC relay system in first link and remove the current relay and use the part obtained from you (hopefully! fingers crossed)?.