Proper switching IC used for SCL/SDA lines

sparkfun / The_Flying_Jalapeno

One testbed to rule them all

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Proper switching IC used for SCL/SDA lines #9

Open lewispg228 opened 6 years ago

lewispg228 commented 6 years ago

V10 uses a PCA logic level shifter to "switch" on/off the SCL/SDA lines. This is useful to isolate the testbed micro from the product entirely (to avoid accidentally powering up the product and/or being able to completely reset I2C)

It would be best to do this switching of the lines with latest method of using our 1:1 x4 mux IC. (74LVC4066)

ericorosel commented 4 years ago

not added to design. I want to preserve the interrupt capabilities. We can add a switch and/or level translation to the daughter baord.