Environmental Sensors Evaluation Kit Manual

R36UH0011EU0103 Rev.1.03

Jul 30, 2024

Page 5

1.5

EVK Hardware Connections and Initial Power-up

Set up the EVK hardware before using the software by completing the following procedure:

1.

Refer to Figure 1 and Table 1 to determine the correct jumper settings for the ESCom communication board.

This jumper selects either the user programmable internal supply or a user supplied voltage as supply for the

connected sensors.

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If the internal voltage supply (default USB) is used, ensure that the jumper is connected to VINT and VSENS

on the K2 connector.

■

If using an external supply, ensure that the jumper is connected to VEXT and VSENS on the K2 connector. In

this case, without connecting the external supply to the communication board, verify that the external

voltage supply setting does not exceed the voltage supply specifications

– a minimum of 1.8V or a

maximum of 3.3V. With the external supply off, connect the external voltage to the 2-

pin “VEXT In” header

(jumper K5) with the orientation indicated in Figure 2.

Note: The external power does not support the 5V pin on the 14-pin connector.

2.

Connect the environmental sensor board on the 14-pin connector on the communication board ensuring the

proper orientation of the sensor board is as shown in the Evaluation Kit image on page 1.

Note: In the case where two or more devices with the same I2C address have been connected to the ESCom

board, all devices will respond to commands send by the Environmental Sensors Evaluation Software (ES-

Eval) and overlap of signal results may happen, which will lead to undefined results.

3.

Insert the USB-C cable into the P1 connector on the communication board and connect it to an available

USB port on the user’s computer.

4.

Activate the software as described in section 1.4.

5.

If the internal voltage is used, the ES-Eval activates the internal voltage after the sensor has been started.

6.

Verify that the D2 LED is on and illuminated blue. This indicates that the sensor voltage is in the valid range.

The communication board provides additional PMOD connectors for usage with other Renesas products. For

more information on additional PMOD connector options and their usage, contact Renesas support.

■

PMOD Connector (Female) for additional sensors via I2C interface

■

PMOD Connector (Male) for Renesas MCU EVKs

Figure 1. Jumper Settings and Connectors on the Environmental Sensor Communication Board