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Topic: Connecting the ADXL345 without resistors (Read 80 times) previous topic - next topic

Garfielder

I saw two videos where this sensor is connected probably to a Nano with no resistors:
  over SPI
over I2C
Is this possibility or is it a bad practice? Or will it work just for a 3.3V Nano?

jremington

#1
Feb 14, 2020, 11:21 pm Last Edit: Feb 14, 2020, 11:24 pm by jremington
The ADXL345 is a 3.3V device.  Connect it directly to a 3.3V MCU or use level shifters with a 5V MCU.

It may work for a while, connected directly to a 5V MCU, but you will eventually end up with dead chips.

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