Particle, VOC, Humidity, and Temperature Sensor - SEN54

The SEN54 sensor module from Sensirion combines the measurement of particulate matter, VOC, humidity, and temperature in a single package. The SEN54 sensors provide fully calibrated outputs with a digital interface, a strong lifetime under 24 h/day operation, and a compact form factor. The combination of all measurement parameters in a single device allows users to reduce design and integration efforts, shorten development times and simplify supply chain. Additionally, the included Sensirion Temperature Acceleration Routine (STAR) engine accelerates the device’s response to ambient temperature change by a factor of 2-3 to provide better UX and more accurate measurements to end users.

The SEN54 uses the the GHR style 'locking' JST connector. This module includes a 6-pin compatible cable that is terminated in breadboard pins making it very easy to connect to the SEN54. The only downside is that we use our generic 6-pin GHR cable and the wire colors do not match normal 'red for 5V' sort of connections. Please see this image for the correct wire color and pin function.

Note: The SEN54 uses I2C to communicate at 3.3V but requires 5V for power. We recommend the Qwiic Boost to connect this sensor easily to our Qwiic system.

  • Sampling interval - 1 +/- 0.03 s
  • Lifetime1 24 h/day operation > 10 years
  • Operating voltage - 4.5 - 5.5V
  • Peak Supply Current - 110 mA
  • Particulate Matter - 1.0, 2.5, 4, & 10
  • VOC index - 1 to 500
  • Humidity range (absolute min/max) - 0% to 90% (non condensing)
  • Temperature range (absolute min/max) - -10 to 50 C
  • Acoustic emission level 0.2 m 24 dB(A)
  • Weight - 36.4g +/- 10%
  • Additional unit specific features in datasheet

Particle, VOC, Humidity, and Temperature Sensor - SEN54 Product Help and Resources

Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

2 Programming

Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

3 Electrical Prototyping

Skill Level: Competent - You will be required to reference a datasheet or schematic to know how to use a component. Your knowledge of a datasheet will only require basic features like power requirements, pinouts, or communications type. Also, you may need a power supply that?s greater than 12V or more than 1A worth of current.
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