3V3 SDA, SCL - Githubissues

NorthernWidget / ALog-Shield

An Arduino shield with all the capabilities of the ALog BottleLogger

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3V3 SDA, SCL #1

Open awickert opened 7 years ago

awickert commented 7 years ago

Add MOSFET + chip resistor level shifter
Mark as 3V3
Move VCC that is by SDA and SCL

awickert commented 7 years ago

Not a bug on this version, because clock is run off of system-wide VCC and therefore there can't be the clash we saw on the non-level-shifting ALog BottleLogger between the clock and external I2C.

Also not even clearly an enhancement. Just a decision: 3V3 or 5V?

3V3 seems more the standard
3V3 used on main ALog
BUT 3V3 requires more parts/cost
BUT VCC is used on standard Arduino

Decisions! @superchap123, I recall that you were in favor of this one.