I am using quectel M66 module with in built controller, I would like to connect following i2c devices with the controller, everything are connecting individually and working fine. when i am connecting both together, i am not able to communicate. Following are the modules i am using
PCA8574 Expandable I/O
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Hi, I can do your work. I have experience of getting data from multiple module on I2C wire. Based on my experience I am sure I will be able to overcome the difficulties you are facing in I2C communication.
Hello dear I cheeked the adress of two piece, and it is ok for both. so the problem to connect both is not related to adress. I have to check with you the schematic, and the program. best regards Aymen
I hold master degree in instrument tech and having about 35 years of expertise in real time embedded hardware and software applications. I am specializing in IOT.