docs: Added a note about different ADLX345 PCB designs

Signed-off-by: Dmitry Butyugin <dmbutyugin@google.com>
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Dmitry Butyugin 2021-03-15 22:50:56 +01:00 committed by KevinOConnor
parent 2d8945dc1c
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@ -8,6 +8,12 @@ Note that using ADXL345 requires some soldering and crimping. ADXL345 can be
connected to a Raspberry Pi directly, or to an SPI interface of an MCU connected to a Raspberry Pi directly, or to an SPI interface of an MCU
board (it needs to be reasonably fast). board (it needs to be reasonably fast).
When sourcing ADLX345, be aware that there is a variety of different PCB
board designs and different clones of them. Make sure that the board supports
SPI mode (small number of boards appear to be hard-configured for I2C by
pulling SDO to GND), and, if it is going to be connected to a 5V printer MCU,
that it has a voltage regulator and a level shifter.
Installation instructions Installation instructions
=========================== ===========================