UM2071 datasheet(12/56 Pages) STMICROELECTRONICS

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Hardware description

UM2071

12/56

DocID029370 Rev 3

2.4

Jumpers

The following jumpers are available:

Table 4: STEVAL-IDB007V1 kit platform jumpers

Jumper

Description

JP1

1-2: to provide power from USB (JP2: 2-3)

2-3: to provide power from battery holder (JP2: 1-2)

JP2

1-2: to provide power from battery holder (JP1: 2-3)

2-3: to provide power from USB (JP1: 1-2)

JP2 pin 2 to VDD to provide external power supply to BlueNRG-1 (JP1: 1-2)

JP3

pin 1 and 2 UART RX and TX of MCU

pin 3 GND

JP4

Fitted: to provide VBLUE to BlueNRG-1. It can be used also for current measurement.

JP5

Fitted: TEST pin to VBLUE

Not fitted: TEST pin to GND

2.5

Sensors

The following sensors are available on the platform:

An LPS25HB (Figure 2: "STEVAL-IDB007V1 board components"

– region H) is a

piezoresistive absolute pressure sensor which functions as a digital output barometer.

The device comprises a sensing element and an IC interface which communicates

through I²C from the sensing element to the application.

An LSM6DS3 3D (region I) digital accelerometer and 3D digital gyroscope with

embedded temperature sensor which communicates via SPI interface. One line for

interrupt is also connected.

2.6

Extension connector

BlueNRG-1 signal test points are shared on two Arduino-compliant connector rows: CN1,

CN3 (Figure 2: "STEVAL-IDB007V1 board components"

– region J) and CN2, CN4 (region

L). See Table 2: "BlueNRG-1 pin description with board functions".

2.7

Push-buttons

The board has one user button to reset the microcontroller (Figure 2: "STEVAL-IDB007V1

board components"

– region M) and two further buttons for application purposes (region N).

2.8

JTAG connector

A JTAG connector (Figure 2: "STEVAL-IDB007V1 board components"

– region O) allows

BlueNRG-1 microcontroller programming and debugging with an in-circuit debugger and

programmer such as ST-LINK/V2.

Only SWD mode is supported

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