How many sensors and devices can be connected to the Arduino nano?

Question

Arduino

Hello. I have an Arduino nano v3. Need to connect:
Temperature and humidity sensor 1pc/2pc
Temperature sensor 1pc
Servo 1pc.
Relay 4pcs (individually, not a whole module)
Simple display 1pc.

Is it possible to connect all these sensors and devices so that each one works separately? Or is something additional needed?
I'm new to this, so don't judge too harshly.

Answer 1

The sensors are different, as are the screens. Look on the Internet for connection diagrams, count how many legs will be used for each sensor, plus how many legs you need to connect the screen. Consider if you have enough legs on the arduino.
Not all sensors and screens can be connected to any legs, sometimes there are nuances, it is possible at one input and not at the other.

Answer 2

Easily, perhaps even without additional. devices will work. If you want to save conclusions - start with the display - connect it through an adapter

Answer 3

The screen can be connected via spi, i2c, relays to any digital output (there are many of them), temperature sensors, if they are with an analog output, then to the ADC inputs, if they are connected via spi, you can use one spi bus with a screen, if 1-wire, that place is also a lot. You can always use the demultiplexer chip. It is even better to take the power separately, the arduino will not give so much if everything works at once.