adxl345 level_changer

westaust55

Moderator
If other parts of your circuit dictate a voltage higher than 3.6 volts then a level shifter circuit is required.

Sparkfun make a board: https://www.sparkfun.com/products/12009

alternatively make your own with two 2N7000 FETs as I have done in the past.
Note that you do need a pull up resistor on the i2c signal lines on both side of the FET transistor to the corresponding supply voltages.
 
thanks so much - I've run my picaxe at 3 v before
also I am using a LCD which needs 5 v so I will
have to deal with that - maybe ave data and then switch to the 5 volts
thnx so much
 
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