A matrix keypad, LCD, Relay and a Raspberry Pi 2 all need to be connected to each other and to internet.
User will enter a 4 digit code, Raspberry will call a web service (REST) to validate the code. the web service will return a flag and a message. If flag is true then the relay will be closed for 2 sec and the message will be shown to the user on the scree. If the flag is false then only the message will be shown to the customer.
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Hello, I am an Electronics and Embedded system developer. I have experience in Digital and Analog electronic design and Matlab. Kindly check my profile. Reply me back and will discuss the details further. Thankyou
I have good experience working with raspberry. I can take care of both software and hardware. My pleasure to work with you here. What will be the function for each component? Best regards.