Application current consumption

AN4515

20/24

DocID026482 Rev 1

3

Application current consumption

3.1

Hardware requirements

Before running the application and measure the current consumption, connect your PC to

the master and sensor as shown in Figure 16.

Figure 16. Hardware environment

The hardware required to run the application are the following:

•

•

Two mini USB cables to power on the boards and to connect the Nucleo embedded ST-

LINK for debugging and programming

•

Five connectors to link the 32F401CDISCOVERY pins with the corresponding Nucleo

pins as described in Table 3.

•

A multimeter to measure current consumption.

Table 3. Master and sensor board connection

NUCLEO-F411RE

32F401CDISCOVERY

I2C SCL (PB8)

I2C SCL (PB6)

I2C SDA (PB9)

I2C SDA (PB9)

PA0

PA0 (USER button)

PA4

PE4 (MEMS INT1 pin)

GND

GND