I have problem with the pin connections of the relay. It is quite confusing. Can anyone draw a simplified diagram so that I can follow that. I have attached the photo of the circuit which i followed. Kindly ignore the 230V from the bulb(solenoid) its 12V. I have 5 pins in the relay and have tried ma…

How to connect a HR-S4- 12V DC relay to Arduino to run a 12V solenoid

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