SEN0231

SEN0231 Datasheet

Gravity HCHO Sensor SKU SEN0231

Part	Datasheet
SEN0231	SEN0231 (pdf)

PDF Datasheet Preview
Gravity HCHO Sensor SKU SEN0231 Introduction Our new Formaldehyde HCHO sensor module is Arduino and Raspberry Pi compatible and is an ideal solution for an indoor air quality monitor. Usually HCHO is measured in air by reagent or colourimetric card, but these solutions are inefficient, can only be used once, and the end result is not always reliable. The formaldehyde HCHO sensor module is compact and fully compatible with Arduino. Through it, you can measure the concentration of formaldehyde in air and measure the air quality. This sensor module is widely used in many air testing applications, such as indoor air quality applications or real time air quality monitoring stations. The HCHO sensor module can detect and measure HCHO with a high level of accuracy. It also has many advantages such as strong anti-jamming capabilities, high stability, ATC, high sensitivity of up to 0.01ppm and a long life guarantee 2 years in outdoor conditions . This module uses a 3 pin Gravity Interface for easy plug and play usage. With a wide input voltage range, and optional output signal, our module is compatible with a wide range of microcontrollers, including Arduino and Raspberry Pi. Use our pre-written sample codes to get your HCHO detector up and running very quickly. Used in an IoT application, it is possible to make an automatic air quality station which can measure HCHO in different sites. When using the sensor module, avoid touching the white sensing film. Keep away from high concentration Hydrogen sulfide, hydrogen, methanol, ethanol and carbon monoxide. These gases will affect the precision and reduce the service life. We recommend priming the module by powering it for 5 minutes on first use. Avoid organic solvents, coatings, medicines, oils and high concentration gases Do not plug unplug the sensor on the module, and do not modify components on the PCB. Avoid excessive impact or vibration. Do not use the modules in systems that are related to human being’s safety. Do not use the modules in strong convection environments. Do not expose modules in high concentration organic gas for extended periods of time. Specification • Input Voltage • Target Gas • Interference Gas • Detection Range • Resolution • Warm Up Time • Response Time • Resume Time • Interface Type: • Output Signal: • Operating Temp: • Operating Hum: • Storage Temp • Working Life: 3.3~6V HCHO CH2O Alcohol, CO & etc 0~5ppm 0.01ppm minutes seconds Gravity PH2.0 3Pin Optional 0-5ppm or UART 9600 0~50 Condensation 0~50 2 years in air Board Overview Num Label Description Signal DAC/UART Signal UART or DAC Output Switch HCHO Sensor Tutorial This tutorial will show how to use this HCHO sensor. The output signal can be UART mode or DAC mode. We recommend to use UART mode for more accurate and stable result. Requirements • Hardware DFRduino UNO or similar x 1 HCHO Sensor Module x 1 Gravity 3P Cable x 1 • Software Arduino IDE, Click to Download Arduino IDE from UART Mode Before using UART mode, please shift the switch to UART mode. In this mode, we'll use SoftwareSerial Port to read the data. Here is the data formula. Connection Diagram Sample Code Please install DFRobotHCHOSensor Arduino Library first. How to install Libraries in Arduino IDE. DFRobot Gravity HCHO Sensor 231> This example reads the concentration of HCHO in air by UART mode. Created 2016-12-15 By Jason GNU Lesser General Public License. See for details. All above must be included in any redistribution /*********Notice and Trouble shooting************* This code is tested on Arduino Uno with Arduino IDE r2. In order to protect the sensor, do not touch the white sensor film on the sensor module, and high concentration of Hydrogen sulfide, hydrogen, methanol, ethano l, carbon monoxide should be avoided. Please do not use the modules in systems which related to human bei ng’s safety.

PDF Datasheet Preview

Gravity HCHO Sensor SKU SEN0231

Introduction

Our new Formaldehyde HCHO sensor module is Arduino and Raspberry Pi compatible and is an ideal solution for an indoor air quality monitor. Usually HCHO is measured in air by reagent or colourimetric card, but these solutions are inefficient, can only be used once, and the end result is not always reliable. The formaldehyde HCHO sensor module is compact and fully compatible with Arduino. Through it, you can measure the concentration of formaldehyde in air and measure the air quality. This sensor module is widely used in many air testing applications, such as indoor air quality applications or real time air quality monitoring stations. The HCHO sensor module can detect and measure HCHO with a high level of accuracy. It also has many advantages such as strong anti-jamming capabilities, high stability, ATC, high sensitivity of up to 0.01ppm and a long life guarantee 2 years in outdoor conditions . This module uses a 3 pin Gravity Interface for easy plug and play usage. With a wide input voltage range, and optional output signal, our module is compatible with a wide range of microcontrollers, including Arduino and Raspberry Pi. Use our pre-written sample codes to get your HCHO detector up and running very quickly. Used in an IoT application, it is possible to make an automatic air quality station which can measure HCHO in different sites.

When using the sensor module, avoid touching the white sensing film. Keep away from high concentration Hydrogen sulfide, hydrogen, methanol, ethanol and carbon monoxide. These gases will affect the precision and reduce the service life. We recommend priming the module by powering it for 5 minutes on first use. Avoid organic solvents, coatings, medicines, oils and high concentration gases Do not plug unplug the sensor on the module, and do not modify components on the PCB. Avoid excessive impact or vibration. Do not use the modules in systems that are related to human being’s safety. Do not use the modules in strong convection environments. Do not expose modules in high concentration organic gas for extended periods of time.

Specification
• Input Voltage
• Target Gas
• Interference Gas
• Detection Range
• Resolution
• Warm Up Time
• Response Time
• Resume Time
• Interface Type:
• Output Signal:
• Operating Temp:
• Operating Hum:
• Storage Temp
• Working Life:
3.3~6V HCHO CH2O Alcohol, CO & etc 0~5ppm 0.01ppm minutes seconds Gravity PH2.0 3Pin

Optional 0-5ppm or UART 9600
0~50

Condensation
0~50 2 years in air

Board Overview

Num Label Description

Signal DAC/UART

Signal UART or DAC Output Switch

HCHO Sensor

Tutorial

This tutorial will show how to use this HCHO sensor. The output signal can be UART mode or DAC mode.

We recommend to use UART mode for more accurate and stable result.

Requirements
• Hardware DFRduino UNO or similar x 1 HCHO Sensor Module x 1 Gravity 3P Cable x 1
• Software Arduino IDE, Click to Download Arduino IDE from

UART Mode

Before using UART mode, please shift the switch to UART mode. In this mode, we'll use SoftwareSerial Port to read the data. Here is the data formula.

Connection Diagram

Sample Code

Please install DFRobotHCHOSensor Arduino Library first.

How to install Libraries in Arduino IDE.

DFRobot Gravity HCHO Sensor
231> This example reads the concentration of HCHO in air by UART mode. Created 2016-12-15

By Jason

GNU Lesser General Public License. See for details. All above must be included in any redistribution
/***********Notice and Trouble shooting***************

This code is tested on Arduino Uno with Arduino IDE r2.

In order to protect the sensor, do not touch the white sensor film on the sensor module,
and high concentration of Hydrogen sulfide, hydrogen, methanol, ethano l, carbon monoxide should be avoided.

Please do not use the modules in systems which related to human bei ng’s safety.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived SEN0231 Datasheet file may be downloaded here without warranties.

Datasheet ID: SEN0231 509128