Use case: I need to transfer a user defined quantity of water to a tank.
I am using an esp32 hooked with some buttons and display for input.
Esp is connected to a flow meter and a 5V relay.
Now I am not sure how to connect the 2hp water pump to the circuit.
I was thinking of connecting the pump and relay with the help of a magnetic contractor. Will back emf from the pump and inrush current be a problem here?
I am tired of using poor quality bag packs.
I am a uni student, I carry a few copies and the regular stuff one needs.
The heaviest item in my backpack is my gaming laptop. Its a little heavy and large (17 inches diagonal).
I do not carry my laptop everyday. My last backpack had poor zippers, the thing broke, zipper itself has became rough and sticks at places.
This one has a lot of loose thread all around it. It’ll fall apart in no time. Ive used it for about a year now.
Please suggest me a good long lasting and durable companion (backpack).
TIA