Hello, I have a question regarding whether it is okay for me to mix and connect a 5V LCD screen and 5V Ultrasonic sensor to my Nano 33 IoT which is running on 3.3V.
I have a Power Supply Module providing 5V to one rail on the breadboard and 3V on the opposite rail (see diagram below). The LCD and Ultrasonic Sensor are drawing power from the 5V rail and the Nano 33 IoT from the 3V rail.
Both the LCD and Ultrasonic Sensor are connected via digital pins to the Nano 33 IoT. Is this okay? I am sorry, I am sure this is a very basic question, but I was just afraid that there might be current running from the 5V LCD and Sensor to the 3V Nano and did not want to take any risks damaging the Nano. Thank you for your help and confirmation.
