
I have done many projects with Arduino modules and am very familiar with the I2C protocol. This TF Luna module does not work with I2C. While there is a way to do this, no documentation I could find says it's just a serial protocol using TX, RX with a software serial interface. It won't work for the project I have in mind. And yes, the SDA and SDL lines have 4.7K pullups, in case you're wondering.

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