Hi everybody. I am asking about the output voltage level of arduino looking forward to help. Situation: I have a DHT11 that works well at 3v-5v voltage. However, if I don't want to use DHT11 anymore, but instead of using a different sensor with a voltage level of 2v-4v for example. Of course they will be on the same port. Can I adjust with software and how? Thanks very much
You cannot adjust the voltage on Arduino I/O pins with software. The voltage is determined by the power supply.
You have not told us what Arduino board you are using.
You have not posted a link to the datasheet for the sensor you wish to use.
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Oh, I have sensors DHT11 and the orther sensors that I can undefined. Important that control voltage level by program. Híc, this is difficult with me. Thanks you very much