Two modules connected, after successively to electricity, exists the phenomenon of irrigation, such as in the picture description, consult how to deal with?

CodePudding user response:

Since all need to go to pull, the door should be OC/OD output, VCC will use 3.3 V line?

CodePudding user response:

Principle: the resistance of received signal receiver,
Must be so, otherwise makes little sense to resistance,

CodePudding user response:

CodePudding user response:

The

reference 3 floor weixin_42355035 response:

The wrong line, borrow floor again hair, figure I2C upper pull resistance with 2.2 K, I've been here is rest on, so use a bigger on the 10 K,
Scene should be the most suitable for your need