Sensirion Particle, VOC, Humidity, and Temperature Sensor - SEN55 (SEN-23715)

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1

This is a placeholder topic for “Sensirion Particle, VOC, Humidity, and Temperature Sensor - SEN55” comments.

The SEN55 environmental node is a straightforward, all-in-one sensor solution platform for the accurate measurement of various environmental parameters…

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Hi Core.

I recently purchased a SEN55. The fan does not run when powered nor is there any IC2 comms. I suspect the sensor is faulty.

To be fair I may have cooked it as the colour coding used on the leads is odd. Pin 1 VCC is green and pin 2 GND is blue.

Thoughts?

3

T’was the Zero!

Reconnected to the Pi 5, activated the VE, installed the driver, ran the code and…..

>>> %Run sen55.py
Version: Firmware 2.0, Hardware 5.0, Protocol 1.0
Product Name: SEN55
Serial Number: A66AC168CD8F803B
Waiting for new data...
Mass Concentration PM1.0:    0.0 µg/m^3
Mass Concentration PM2.5:    0.0 µg/m^3
Mass Concentration PM4.0:    0.0 µg/m^3
Mass Concentration PM10.0:   0.0 µg/m^3
Ambient Humidity:            62.27 %RH
Ambient Temperature:         27.50 °C
VOC Index:                   0.0
NOx Index:                   N/A
Device Status: 0x00000000 [OK]

Waiting for new data...
Mass Concentration PM1.0:    0.0 µg/m^3
Mass Concentration PM2.5:    0.0 µg/m^3
Mass Concentration PM4.0:    0.0 µg/m^3
Mass Concentration PM10.0:   0.0 µg/m^3
Ambient Humidity:            62.27 %RH
Ambient Temperature:         27.50 °C
VOC Index:                   0.0
NOx Index:                   N/A
Device Status: 0x00000000 [OK]

Waiting for new data...
Mass Concentration PM1.0:    2.4 µg/m^3
Mass Concentration PM2.5:    6.9 µg/m^3
Mass Concentration PM4.0:    10.5 µg/m^3
Mass Concentration PM10.0:   12.4 µg/m^3
Ambient Humidity:            62.26 %RH
Ambient Temperature:         27.50 °C
VOC Index:                   0.0
NOx Index:                   N/A
Device Status: 0x00000000 [OK]

Waiting for new data...
Mass Concentration PM1.0:    2.5 µg/m^3
Mass Concentration PM2.5:    6.5 µg/m^3
Mass Concentration PM4.0:    9.7 µg/m^3
Mass Concentration PM10.0:   11.3 µg/m^3
Ambient Humidity:            62.25 %RH
Ambient Temperature:         27.50 °C
VOC Index:                   0.0
NOx Index:                   N/A
Device Status: 0x00000000 [OK]