Can i solder two wires together to connect it to 3.3V of Arduino. I need to connect OV7670 and LDR Module to it @Grumpy_Mike
For arduino uno
Not directly.
Can you post links to these two modules?
From what I can remember they only work with 5V and 5V signals, so I think they require level shifters to work with a 3V3 device.
I checked the datasheets for both, they can work with 3.3V but i need to connect both to one pin. Can i solder two wires, insulate them and connect them? As i only need the project temporarily
This is a very simple topology problem / misunderstanding.
You can connect as many wires to the same pin as you want. There is no splitting of voltage when this happens. The whole thing is known as a lumped circuit. A bit of insulation tape is always useful to stop the voltage wires accidentally touching anything else.
I did insulated them from other things, but thr two wires are twisted together. Is it fine? Because i just need this project temporarily
It is fine for temporary stuff, but not in the long term as you get oxidation between the surfaces of your twist. There is also little mechanical strength in a twisted wire so it requires little force to pull them apart.
By the way are you talking about solid wire or multi stranded wire?
With solid wire I would put a hook on each wire and then squeeze them together with pliers. Then use the pliers to twist the wires together. However the problem with single wires is that they can fracture if the twist is too tight.
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