User Manual

Arduino
I2C Wiring
Use this wiring if you want to connect via I2C interface
By default, the i2c address is 0x5d. If you add a jumper from SDO to GND, the address will change to 0x5c.
If you are running a 5V Arduino (Uno, etc.),
connect Arduino 5V to board VIN
Connect Arduino GND to board GND
Connect Arduino SCL to board SCK
Connect Arduino SDA to board SDI
The final results should resemble the illustration above, showing an Adafruit Metro development board.
SPI Wiring
Since this is a SPI-capable sensor, we can use hardware or 'software' SPI. To make wiring identical on all
microcontrollers, we'll begin with 'software' SPI. The following pins should be used:
Connect Vin to the power supply, 3V or 5V is fine.
Use the same voltage that the microcontroller
logic is based off of
Connect GND to common power/data ground
Connect the SCK pin to Digital #13 but any pin can
be used later
Connect the SDO pin to Digital #12 but any pin
can be used later
Connect the SDI pin to Digital #11 but any pin can
be used later
Connect the CS pin Digital #10 but any pin can be
used later
Later on, once we get it working, we can adjust the library to use hardware SPI if you desire, or change the pins to
others.
© Adafruit Industries https://learn.adafruit.com/lps35hw-water-resistant-pressure-sensor Page 8 of 18