Getting Started; Overview; Hardware Setup - Infineon XENSIV BGT60LTR11AIP Manual

XENSIV™ BGT60LTR11AIP Radar Shield2Go
Super low-power 60 GHz Doppler radar sensor with antennas-in-package

Getting started

3 Getting started
3.1

Overview

The Radar Shield2Go needs an MCU to communicate and run custom code. However, if connected to a power
source, the direction and motion LEDs blink in the presence of an object even without an MCU connected. The
target detect (TD) pin is an active low pin. Hence, when no target is detected, the voltage level appears to be
3.3 V on this pin. The phase detect (PD) pin voltage varies, depending on the direction of the moving object.
While the target is approaching, the pin puts out 3.3 V, and when the target is departing from the radar, it puts
out close to 0 V. These pins can be read from analog pins or digital pins TD and PD.
Move the switch lever "QS1: mode" to the left position to set up the radar in autonomous mode, and apply 3.3 V
(pin 7) and GND (pin 6) to the corresponding power pins of the Shield2Go. Note that the power source offers a
minimum of 150 mA. If power is supplied, the PWR LED turns on. Now, the radar can recognize any movement
or direction of an approaching or departing object. The blue LED lights up when object movement is detected,
and the red LED lights up when the target is approaching or departing. See section 5.3 for more information
about LED behavior.
The radar now works on its own, without any other MCU needed. However, for reading/writing the radar MMIC,
connect one of the recommended MCUs mentioned in section 1.1.1. Note that any MCU will work if the voltage
levels are the same (3.3 V), otherwise level shifting is mandatory. Because Infineon offers software libraries
compatible with Arduino and Infineon XMC™ boards, software setup for other MCU platforms might be more
difficult.
Infineon's software libraries and installation guides are open-source and available on Infineon's
channel. The Radar Shield2Go needs to be connected with the pin headers of the MCU board either with wires
or via stacking onto an adapter (e.g., Infineon's MyIoT adapter for Arduino).
3.2

Hardware setup

Connect the Radar Shield2Go to any microcontroller and supply the board with a 3.3 V DC (150 mA) power source
(which can usually be driven by the MCU board).
Figure 4 Radar Shield2Go on top of Infineon's MyIoT adapter and Arduino-compatible XMC1100 Boot
Kit (very bottom)
Application Note page 7 of 32
GitHub
V1.0
2022-12-15