EmbeddedRelated.com
T6793

T6793

Amphenol Advanced Sensors (Telaire)
Carbon Dioxide (CO2) Sensor I2C, PWM
Active909 in stock

Overview

The T6793 is a miniature Non-Dispersive Infrared (NDIR) carbon dioxide sensor module designed for indoor air quality monitoring. It features the ABC Logic self-calibration algorithm and supports multiple communication interfaces including I2C, UART, and PWM. This sensor provides accurate CO2 concentration readings up to 2000ppm within a compact footprint suitable for integration into existing HVAC or smart home systems.

Why Choose This Part

The module utilizes a pre-calibrated NDIR technology that offers long-term stability via the ABC Logic algorithm, reducing the need for manual field calibration. Its dual-interface capability (I2C and PWM) allows for easy integration with both digital microcontrollers and legacy analog-input systems.

Applications

Demand Control Ventilation
Integrate into HVAC systems to regulate fresh air intake based on real-time CO2 levels to improve energy efficiency.
Indoor Air Quality Monitoring
Deploy in smart home devices or office monitors to track CO2 levels and provide alerts for poor ventilation.
Energy Management
Optimize building energy use by reducing ventilation in unoccupied spaces as indicated by low CO2 concentration.

Key Specifications

Type Carbon Dioxide (CO2)
Output I2C, PWM
Current - Supply 20mA
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature -10degC ~ 60degC

Getting Started

Connect the module to a 5V power source and interface with an MCU via the I2C pins using standard address-based read commands. For initial testing, the PWM output can be monitored with an oscilloscope or microcontroller timer to verify concentration readings without complex software overhead. Ensure the module is placed in an area with adequate airflow to maintain measurement accuracy.

Part of T6700 Series family » T6793

T6793 Family

Part NumberDifferenceStock
T6793-EVAL (Amphenol Advanced Sensors) EVAL 2

Also Consider

SCD40 SENSensirion AG - A much smaller photoacoustic sensor that offers high accuracy in a surface-mount package for space-constrained designs.
CCS811 ams OSRAM - An ultra-low power MOX sensor for VOC and eCO2 monitoring if true NDIR accuracy is not required for the application.