User Manual

Pinouts

Power Pins

Vin - this is the power pin. Since the sensor chip uses 3.3 VDC, we have included a voltage regulator on board

that will take 3-5VDC and safely convert it down. To power the board, give it the same power as the logic level of

your microcontroller - e.g. for a 5V micro like Arduino, use 5V, for a feather use 3.3V

3Vo - this is the 3.3V output from the voltage regulator, you can grab up to 100mA from this if you like

GND - common ground for power and logic

I2C Logic pins:

SCK - this is the I2C clock pin, connect to your microcontrollers I2C clock line.

SDI - this is the I2C data pin, connect to your microcontrollers I2C data line.

Leave the SDO and CS pins disconnected

SPI Logic pins:

All pins going into the breakout have level shifting circuitry to make them 3-5V logic level safe. Use whatever logic

level is on Vin!

SCK - This is

also

the SPI Clock pin, its an input to the chip

SDO - this is the Serial Data Out / Master In Slave Out pin, for data sent from the LPS35HW to your processor

SDI - this is

also

the Serial Data In / Master Out Slave In pin, for data sent from your processor to the LPS35HW

CS - this is the Chip Select pin, drop it low to start an SPI transaction. Its an input to the chip