Pedometer module – STM201M

Very small module for building a pedometer for use in various types of systems.
Pedometer module - STM201M - Image 1

SKU 2846-STM201MItem type: Assembled,

Description

Thanks to an algorithm implemented in a microcontroller and a high-precision accelerometer, this very small module (about 10x9x3 mm) allows you to create a pedometer for use in various types of systems.

The module can provide step information in two ways:

  • through an interrupt pin connected directly to the MEMS accelerometer chip and brought out to a pad (STEP_OUT pin); in this case, a logic level transition from 0 to 1 lasting 50 ms is available for each step;
  • by querying the microcontroller on demand via the I²C bus, which acquires the step signal from the MEMS accelerometer and responds with a data string containing the requested information.

Technical specifications

Documentation and useful links

Technical details

Power supply from 2.3 to 3.6 VDC
Consumption 60 µA (at 3 volts)
Sleep mode consumption <5 (at 3 volts)
Resolution 1 step
Operating temperature from -10°C to +50°C
Dimensions (mm) 10x9x3
Weight 0.2 grams

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