Page Comparison

MPL3115A2:

• I2C Output up to 400 kHz
• 1.95 to 3.6 V Supply Voltage, Internally Regulated by LDO
• Max Current 2mA
• Great Good at reading Accuracy at a very slow rate. 

BME280:

• Both SPI (up to 10 MHz) and I²C (up to 3.4 MHz) interfaces 
• VDD main supply voltage range: 1.71 - 3.6 V
• 1.8 µA @ 1 Hz humidity and temperature
  2.8 µA @ 1 Hz pressure and temperature
  3.6 µA @ 1 Hz humidity, pressure and temperature
• Max Current ~1.4mA?
• Possible to get a decent measurement rate with good accuracy.

MPL3115A2:

Breakout Board Product Page: Adafruit

Chip Retailer: LCSC 

Datasheet: Datasheet

BME280:

Breakout Board Product Page: Adafruit

Chip Retailer: Mouser

Datasheet: Datasheet

LIS3DH:

• Both SPI and I2C outputs
• Voltage 1.71 - 3.6 V
• Max Current ~185µA

ADXL 343 or ADXL 345:

• Both SPI and I2C outputs
• Voltage 2 - 3.6 V
• Max Current ~140µA
• ADXL 345 is more expensive but is better with zero-g offset.

LIS3DH:

Breakout Board Product Page: Adafruit

Chip Retailer: Digikey

Datasheet: Datasheet

ADXL 343 or ADXL 345:

Breakout Boards Product Page: Adafruit 343 | Adafruit 345

Chip Retailers: Digikey 343 | Digikey 345

Datasheets: ADXL 343 DS | ADXL 345 DS

LSM6DSOX:

• Both SPI and I2C outputs
• Voltage 1.71 - 3.6 V
• Max Current ~ .55mA
• 6 DOF - Accelerometer ±1-16g & Gyroscope ±125-2000 dps

LSM6DSOX:

Breakout Board Product Page: Adafruit

Chip Retailer: Digikey

Datasheet: Datasheet

Magnetometer or Gyroscope

(If not already in IMU)

W25Q64JVSSIM:

• SPI only
• 8 Megabyte / 64 Megabit
• Voltage 2.7 - 3.6V
• Max Current ~25mA

W25Q64JVSSIM:

Breakout Board Product Page: Nice Chip, No Breakout. 

Chip Retailer: Digikey

Datasheet: Datasheet