Evaluation Board Manual
US082-HS3001EVZ

The US082-HS3001EVZ board enables quick
prototyping for a custom system design with theHS3001, a high-performance relative humidity andtemperature sensor. The board provides a standard
Pmod™ Type 6A (Extended I2C) connection for theon-board sensor to plug into any desired MCU
evaluation kit with a matching connector.

Features

The US082-HS3001EVZ features Pmod connectors
on both sides of the board allowing additional Type
6/6A boards to be connected in a daisy-chainedsolution with multiple sensors on the same MCUPmod connector. Significantly reducing development
time, software support present in the Renesas IDE(e2 studio) generates code that connects the sensor
and the MCU. Because of the standard connector andsoftware support, the US082-HS3001EVZ is the best
choice to rapidly create an IoT system with theRenesas Quick-Connect IoT.

▪ Dual connectors allow pass-through signals fordaisy-chained solutions▪ Relative humidity HS3001 sensor sample mounted:• RH accuracy: ±1.5%RH• Operating temperature: -40 to 105°C▪ Standardized Type 6A Pmod connector supports
I2C Extended interface▪ Software support in e2 studio minimizes
development time with one-click code generation

Board Contents▪ US082-HS3001EVZ Board

Figure 1. US082-HS3001EVZ Pmod Board

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US082-HS3001EVZ Evaluation Board ManualContents1.

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1
2.2
2.3

3.

Required or Recommended User Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Software Installation and Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Kit Hardware Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Programming Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.13.2
3.3

Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85.

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

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Functional Description

The US082-HS3001EVZ functions as a sensor building block to create a custom system solution. Use the board
individually or with a combination of other sensors by using the Pmod Type 6A interface. With this simple
hardware connection, the software sensor block in the Renesas software package allows you to generate all therequired code between the sensor and the MCU with the simple click of a button. (See the Renesas
Quick-Connect IoT web page for a list of available sensor Pmod boards.)

Figure 2. Evaluation Kit Connections using the US082-HS3001EVZ and EK-RA2L1

2.

Setup

2.1

Required or Recommended User Equipment

The following additional lab equipment (sold separately) is required for using the board:▪ Any MCU board that supports a Type 6A Pmod.
▪ The US082-INTERPEVZ interposer board when using one of the Renesas MCU kits shown in Table 1.
Table 1. Renesas MCU Evaluation Kits[1] that support a Type 6A Pmodwhen used with the US082-INTERPEVZRARXSynergy

EK-RA4W1

RX111-Starter-Kit

PK-S5D9

EK-RA2A1

RX231-Starter-Kit

DK-S3A7

EK-RA4M1

RX23W-Starter-Kit

DK-S128

EK-RA6M1

RX23T-Starter-Kit

TB-S1JA

EK-RA6M2

RX24T-Starter-Kit

TB-S3A6

EK-RA6M3

RX24U-Starter-Kit

DK-S7G2

EK-RA6M3G
1. This table is not a comprehensive list of supported MCU Kits. See the evaluation kit hardware manual to confirm Pmod pinout.

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2.2

Software Installation and Usage

See the Renesas website for the latest version of the e2 studio installer. The minimum FSP version supportingsensor blocks is FSP 3.1.0. For the latest sensor support, ensure you are using the latest release.
Visit Renesas Quick-Connect IoT for more information about creating your customized system solution.

2.3

Kit Hardware Connections

Follow these procedures to set up the kit as shown on Figure 2.
1. Ensure the MCU evaluation kit being used has a Pmod connector set to Type 6A. (If unsure, see the kithardware manual).
a. If no Type 6A Pmod is available, ensure the MCU evaluation kit can use the US082-INTERPEVZ interposerboard and insert the board into the MCU connector before adding any sensor boards.
2. Plug in the US082-HS3001EVZ to the Type 6A connector, being careful to align Pin 1 on the sensor board andMCU kit.
3. Connect the J4 and J5 jumpers to place 4.7k pull-up resistors on the I2C bus lines.
a. Only one set of I2C pull-up resistors should be used on the bus. If multiple sensor boards are used, only
one board should have the jumpers present.
b. MCU kits typically do not have pull-up resistors present on the bus lines, but it is important to check forthem.
4. The sensor is now ready to be used in the system. Follow the MCU kit instructions for connecting and powering
up the evaluation kit.
Jumpers for I2C
Pull-Ups

Connector for AdditionalSensor Pmod Boards

Connector toMCU Board

Relative HumiditySensor

Figure 3. US082-HS3001EVZ Pmod Board

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Programming Interface

Programming of the system can be accomplished through the Renesas IDE, e2 studio. See the MCU evaluation
kit documentation to set up the initial project in e2 studio. As the project is initialized, adding the HS3001 sensor tothe project only takes a few steps.
1. Navigate to the Components tab, open the Middleware/Generic folder, and select the desired sensor. For thecase shown in Figure 4, select the r_hs3001_rx.

Generate CodeRelative HumiditySensor

Figure 4. Component Configuration in Renesas e2 Studio

2. Click the Generate Code icon and the system generates the code to configure the sensor with the MCU.
3. Write three to four lines of code to check the version, initialize the sensor, start the measurement cycle, and get
the data. Example code to start the sensor after configuration to an RX MCU:
R_HS3001_GetVersion(&gs_hs3001_version); // Check version (optional)
err = R_HS3001_Open(&gs_hs3001_ctrl[device_no], &gs_hs3001_cfg[device_no]);// configure the sensor
err = R_HS3001_IOCtl(&gs_hs3001_ctrl[device_no], &gs_w_buf[0], 0,
HS3001_IOCTL_CMD_START_MEASUREMENT);
err = R_HS3001_Read(&gs_hs3001_ctrl[device_no], &gs_r_buf[0], 4, NULL);// Get data
4. Use the data in your given application. Sample projects are available on the Renesas website as well.
For more information on creating your full system design, further information on software development, andadditional hardware availability, visit Renesas Quick-Connect IoT.

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3.1

Schematic Diagram
3V3R24.7k

1

PMOD Interface Slave
789101112

J51J43V3

BUSY#ENABLE
POWER_ON
GPIO4R34.7k

20603

20603

PMOD Interface System 3V3123456IRQ
RES_N
IIC_SCL
IIC_SDA

GND

3V3C10.1uF, 50V

J2123456123U1SCL VDDSDA NCVC GND

BUSY#ENABLE
POWER_ONGPIO4J1456C20.1uF, 50VGND

HS3001

GND

789101112

GND

C30.1uF, 50V

C40.1uF, 50V
GND

GND

GND

Figure 5. US082-HS3001EVZ Application Schematic

3.2

Bill of Materials

Qty

Reference

4C1, C2, C3, C4

Description

Value

PCB Footprint

Part Number

Capacitor, 0.1µF, 50V, 0603

0.1µF

0603

C0603C104J5RACTU

PmodTM

PMOD-MALE-TOP

M20-9950645

1J1

Male Header 0.1" pitch PMOD 2x6
Right Angle

1J2Female Header 0.1" pitch PMOD
2x6 Right Angle

CON-000050-01

SSW-106-02-F-D-RA

2J4, J5

CONN HEADER VERT 2POS 1.27
MMHDR-1X2-FTS

FTS-102-01-L-S

2R2, R3Resistor, 4.7k, 0603

0603

RC0603JR-074K7L

1U1

Relative Humidity Sensor

6-LGA_(3x2.41)

HS3001

2J4, J5

1.27" 1x2 Jumper with Grip, Gold

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3.3

Board Layout

Figure 6. Silkscreen Top

Figure 7. Copper Top

Figure 8. Copper L1 Layer

Figure 9. Copper L2 Layer

Figure 10. Copper Bottom

Figure 11. Silkscreen Bottom

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4.

Ordering Information
Part Number

Description

US082-HS3001EVZ

HS3001 Pmod Board

US082-INTERPEVZPmod interposer board to convert Type 2A and 3A to Type 6A on older Renesas MCU kits.

5.

Revision History
Revision

Date

1.0

Jun 15, 2021

R36UZ0004EU0100 Rev.1.0
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Description
Initial release

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