The Barometric Pressure TinyShield allows you to measure barometric pressure and temperature with your TinyDuino. Based around theBosch BMP280sensor, this allows you to measure barometric pressure with a +/- 1hPa absolute accuracy, and temperature with a +/- 1.0C accuracy. This is great for weather applications or accurate altitude measurements, such as for small drones or rocketry projects.

This TinyShield uses I2C communication and incorporates level shifters and a local power supply to ensure proper and safe operation over the entire TinyDuino operating voltage range up to 5V.

You can also use this shield without the TinyDuino – there are 0.1″ spaced holes for power, ground, and the two I2C signals along the side of the TinyShield to allow you to connect a different system.

Specifications:

Ultra compact size and weight (smaller than a US Quarter!)
- Square Version: 20mm x 20mm (.787 inches x .787 inches)
- Max Height (from lower bottom TinyShield Connector to upper top TinyShield Connector): 5.11mm (0.201 inches)
- Weight: 1.62 grams (.06 ounces)
Bosch BMP280 Barometric Pressure Sensor
- Pressure Range: 300 -> 1100 hPa (equiv to +9000 to -500m above/below sea level)
- Relative Accuracy: +/- 0.12 hPa, equiv to +/- 1m
- Absolute Accuracy: +/- 1 hPa
- Absolute Accuracy Temperature: +/- 1.0C
I2C Mode used
- Arduino pins A4 and A5 are used by this shield