i want to ask if you know how can i use DHT11 with the IO expander MCP23017. Im using the ESP32CAM module and this device has really few available pins to use, i have red that you shouldnt use data sensors with the expander because speed issues, but the thing is that im reading the temperature and the humidy every 10 seconds so i dont really need speed, i guess.
It uses the 1-wire protocol. Because of the data rate it is generally connected to the processor. There are many libraries you can use. Using it on a peripheral part is possible but I found no libraries supporting this.
I don't see why it would not work it should be transparent to the DHT11 and the micro.
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