AMS CCS811 Manuel utilisateur

Eval Kit Manual

DN[Document ID]

ams Eval Kit Manual

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[v1-01] 2017-Jan-16

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CCS811

Standard Board

CCS811-LG_EK_ST

CCS811 Standard Board

ams Eval Kit Manual

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[v1-01] 2017-Jan-16

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Content Guide

1Introduction .......................................................................................................................... 3

2General Description ............................................................................................................. 3

2.1 USB to I2C Board (ENS-USB-I2CIO)................................................................................... 3

2.2 CCS811 Sensor Board (ENS-CCS811-SB)......................................................................... 4

3Software Installation............................................................................................................. 5

4Board Interface and Test Points .......................................................................................... 6

4.1 Board Interface..................................................................................................................... 6

4.2 Test Points ........................................................................................................................... 6

5Schematic, PCB Layout and Bill of Materials ...................................................................... 7

5.1 Schematic Design................................................................................................................ 7

5.2 Bill of Materials (BOM)......................................................................................................... 7

5.2.1 USB to I2C Board (ENS-USB-I2CIO)................................................................................... 7

5.2.2 CCS811 Sensor Board (ENS-CCS811-SB)......................................................................... 7

6Summary.............................................................................................................................. 8

7Ordering & Contact Information ........................................................................................... 9

8Copyrights & Disclaimer.....................................................................................................10

9Revision Information ..........................................................................................................11

CCS811 Standard Board

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1 Introduction

The document provides an overview of the CCS811 evaluation kit and covers the following topics:

evaluation kit general description, software installation, board interface, test points, schematics,

PCB layout and bill of materials (BOM).

2 General Description

The CCS811 evaluation kit comes with the following components:

ENS-USB-I2CIO : USB to I2C board

ENS-CCS811-SB : CCS811 sensor board

Thanks Card containing URL to download related software and documentation

USB 2.0 A Male to Micro B cable

2.1 USB to I2C Board (ENS-USB-I2CIO)

The USB to I2C board refer to as ENS-USB-I2CIO, as shown in Figure 1, allows control and

measurement of the CCS811 sensor board using the ENS Dashboard. By default the USB to I2C

board provides a 3.3 V supply to the CCS811 sensor board.

Figure 1 USB to I2C Board

The USB to I2C board has the following key features:

Silicon Labs CP2112 device which provides a simple solution for controlling I2C slave, the

nWAKE and nRESET signals and monitors the nINT signal

Board dimensions 42mm length x 18mm width

Standard micro USB connector and board interface with power (VDD, GND) and I2C Signal

(SCL, SDA).

Supports Standard I2C mode (100 kHz) and Fast I2C mode (400 kHz)

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2.2 CCS811 Sensor Board (ENS-CCS811-SB)

The CCS811 sensor board refer to as ENS-CCS811-SB, as shown in Figure 2, is an evaluation

platform for the CCS811 device. It contains a CCS811 digital VOC gas sensor with an ENS210

relative humidity and temperature sensor and has I2C interface which is compatible with the USB to

I2C board for USB connection to PC / laptop

Figure 2 CCS811 Sensor Board

The sensor board has the following key features:

CCS811 ultra-low power digital gas sensor for monitoring indoor air quality

ENS210 relative humidity and temperature sensor with I2C Interface used to compensate

for environmental changes

Board dimensions 25mm length x 18mm width

Board interface with power (VDD, GND) and I2C Signal (SCL, SDA).

Sensor chips support standard I2C mode (100 kHz) and fast I2C mode (400 kHz)

Sensor board supports 1.8 V to 3.6 V

By plugging the CCS811 sensor board into the USB to I2C board as shown in Figure 3, direct

connection to PC is enabled via USB.

Figure 3 CCS811 Sensor Board with USB to I2C board

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A block diagram of the CCS811-LG_EK_ST which illustrates the end-to-end connection between

the PC via USB to I2C board (ENS-USB-I2CIO) and CCS811 sensor board (ENS-CCS811-SB) is

shown in Figure 4 below.

Figure 4 Block Diagram of CCS811-LG_EK_ST

ENS-USB-I2CIO

ENS-CCS811-SB

CP2112

USB HID to I2C bridge

SDA

ADDR

SCK

VDD

GND

GPIOx CCS811

CCS811

Digital VOC sensor

SCK

SDA

ENS210

RH + T Sensor

SCK

SDA

GND

VDD

ADDR

nWAKE

VDD

GND

USB

Relative humidity and temperature data from ENS210 can be read on the I2C bus and this

information can be written to CCS811 to compensate for temperature and humidity changes for

indoor air quality monitoring.

3 Software Installation

Quick steps:

Connect CCS811 sensor board (ENS-CCS811-SB) into USB to I2C board (ENS-USB-I2CIO)

Connect USB to I2C board (ENS-USB-I2CIO) via USB cable to Windows PC

Install Windows PC ENS dashboard application available at http://ens.ams.com/

The ENS Dashboard application setup wizard will be launched and guide you through the installation,

please refer to the ENS Dashboard user manual.

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4 Board Interface and Test Points

4.1 Board Interface

The signal labels and pin designators for the interface are shown in Figure 5.

Figure 5 Board Interface

in (s)

Label

Description

VDD

Supply voltage

SDA

I2C data

SCL

I2C clock

nWAKE

Wake up pin. Active low

nINT

Optional interrupt pin. Active low

nRESET

Optional reset pin. Active low

GND

Ground

4.2 Test Points

There are 3 test points for I2C address, GND and PWM as shown below on the CCS811 sensor

board (ENS-CCS811-SB).

Figure 6 CCS811 Sensor Board Test Points

Ground

Address

PWM

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5 Schematic, PCB Layout and Bill of Materials

The schematic design, PCB layout and bill of materials (BOM) for CCS811-LG_EK_ST is

documented in the following sections.

5.1 Schematic Design

The schematic design for USB to I2C board (ENS-USB-I2CIO) and the CCS811 sensor board (ENS-

CCS811-SB) is documented at the end of the document.

5.2 Bill of Materials (BOM)

The bill of materials (BOM) for the USB to I2C board (ENS-USB-I2CIO) and CCS811 sensor board

(ENS-CCS811-SB) are shown in the following sections.

5.2.1 USB to I2C Board (ENS-USB-I2CIO)

Figure 7 Bill of Materials (BOM) for the USB to I2C Board

Label

Description

Part Number

Manufacturer

IC - USB to I2Cbridge QFN24

CP2112

Silicon labs

ESD Protection Device SOT-14

SP0503BAHTG

LITTLEFUSE

330K Resistor 0402

CRG0402J330K

TE CONNECTIVITY

0R Jumper Resistor 0402

ERJ-2GE0R00X

PANASONIC

ELECTRONIC

R4, R5

1K Resistor 0402

ASC0402-1K0FT10

WELWYN

R6, R7, R8

4K7 Resistor 0402

CRG0402F4K7

TE CONNECTIVITY

Inductor 0402-N

742843122

WURTH ELEKTRONIK

C1,C6,C7

100nF Capacitor 0402

MC0402X104K100CT

MULTICOMP

C2, C3, C4

4.7uF Capacitor 0402

GRM188R61A475KE15D

Murata

10nF Capacitor 0402-N

MCCA000077

MULTICOMP

LED1-TX

Chip LED 0603

150060GS75000

WURTH ELEKTRONIK

LED2-RX

Chip LED 0603

150060YS75000

WURTH ELEKTRONIK

USB

USB_MICROBOUT

47346-0001

Molex

Board-To-Board Connector

38-00-1337

Molex

5.2.2 CCS811 Sensor Board (ENS-CCS811-SB)

Figure 8 Bill of Materials (BOM) for the CCS811 sensor Board

Label

Description

Part Number

Manufacturer

CCS811B Digital gas sensor for

indoor air quality monitoring

CCS811B-JOPR

ams AG

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Label

Description

Part Number

Manufacturer

Relative Humidity and

Temperature

Sensor with I²C Interface

ENS210-LQFM

ams AG

Connector 7pin 2.54mm

22-28-6070

Molex

100nF Capacitor 0402

MC0402X104K100CT

MULTICOMP

4.7uF Capacitor 0402

GRM188R61A475KE15D

Murata

100KΩ Resistor 0402

MCWR04X1003FTL

MULTICOMP

R2(8-4)

100kΩ NTC Thermistor 0402-N

NCP15WF104F03RC

Murata

6 Summary

This document describes the CCS811 evaluation kit about what it is and how to use it from the user

point of view.

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7 Ordering & Contact Information

Ordering Code

Description

CCS811-LG_EK_ST

CCS811 Eval Kit Standard Board

Technical Support is available at:

www.ams.com/Technical-Support

Provide feedback about this document at:

www.ams.com/Document-Feedback

For further information and requests, e-mail us at:

ams_sales@ams.com

For sales offices, distributors and representatives, please visit:

www.ams/com/contact

Headquarters

ams AG

Tobelbader Strasse 30

8141 Premstaetten

Austria, Europe

Tel: +43 (0) 3136 500 0

Website: www.ams.com

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8 Copyrights & Disclaimer

translated, stored, or used without the prior written consent of the copyright owner.

Demo Kits, Evaluation Kits and Reference Designs are provided to recipient on an “as is” basis for

demonstration and evaluation purposes only and are not considered to be finished end-products

intended and fit for general consumer use, commercial applications and applications with special

requirements such as but not limited to medical equipment or automotive applications. Demo Kits,

Evaluation Kits and Reference Designs have not been tested for compliance with electromagnetic

compatibility (EMC) standards and directives, unless otherwise specified. Demo Kits, Evaluation Kits

and Reference Designs shall be used by qualified personnel only.

ams AG reserves the right to change functionality and price of Demo Kits, Evaluation Kits and

Reference Designs at any time and without notice.

Any express or implied warranties, including, but not limited to the implied warranties of

merchantability and fitness for a particular purpose are disclaimed. Any claims and demands and any

direct, indirect, incidental, special, exemplary or consequential damages arising from the inadequacy

of the provided Demo Kits, Evaluation Kits and Reference Designs or incurred losses of any kind (e.g.

loss of use, data or profits or business interruption however caused) as a consequence of their use

are excluded.

ams AG shall not be liable to recipient or any third party for any damages, including but not limited to

personal injury, property damage, loss of profits, loss of use, interruption of business or indirect,

special, incidental or consequential damages, of any kind, in connection with or arising out of the

furnishing, performance or use of the technical data herein. No obligation or liability to recipient or

any third party shall arise or flow out of ams AG rendering of technical or other services.

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