James
I have seen a lot of comments about the i2c bus voltages and the Pi. The GPIO pins in normal use are not 5 volt tolerant but the GPIO's setup for the i2c bus are, and my connection to this i2c backpack & lcd is direct with no level shifting. The backpack/lcd are supplied from one of the the Pi's 5 volt pins (pin 2).
Reading from and writing to the device have been consistent for several weeks.
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