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Ribbit-Network / ribbit-network-frog-hardware

The sensor for the world's largest crowdsourced network of open-source, low-cost, GHG Gas Detection Sensors.
https://www.ribbitnetwork.org/
MIT License
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Research Options for Methane Sensor / Create Sensor Trade Matrix #103

Open keenanjohnson opened 2 years ago

josuah commented 1 year ago

Going for a web search brings up a lot of Aliexpress links featuring a sensor witten MQ-4 on it.

Further search about that MQ-4 leads us to this: https://www.sparkfun.com/products/9404 https://www.sparkfun.com/datasheets/Sensors/Biometric/MQ-4.pdf

200 to 10000ppm Is 200 part per million sensible enough?

The manufacturer seems oriented toward practical uses for these, such as detecting "anything hazardous" rather than one particular gas: https://www.hwsensor.com/

Yet, an inventory search for that parts reveals the category with many other similar parts, and here we have our full range of gas sensors, this is the right place with all kind of specs

https://www.digikey.fr/en/products/filter/gas-sensors/530 https://eu.mouser.com/c/sensors/environmental-sensors/air-quality-sensors/ https://www.arrow.com/en/categories/sensors/air-quality-sensors

Maybe that can lead to one sensor having multiple kind of gas, barometer... all included. But at least we can compare now.

keenanjohnson commented 10 months ago

@hansenni let's use this issue to track your work to create a sensor comparison matrix as we discussed today.

hansenni commented 10 months ago

@keenanjohnson sounds like a plan. I'll start with CO2 sensors and head towards methane. After that we can discuss particulate, VOC, or anything else of interest

keenanjohnson commented 10 months ago

Hey @hansenni. How is this going?

hansenni commented 10 months ago

On track to finish CO2 sensors this week I believe. Work got a bit busier this week or it would already be done.

hansenni commented 10 months ago
Sensor Technology Measurement Range (ppm) Accuracy Supply Voltage Average Current Interface Dimensions Operating Temperature Range Price (if available) Link
Senseair K33 ELG NDIR 400-5000 ppm ± (30 ppm + 3%MV) 4.75-12VDC 3 maximum rating, powered via Vbat+
5.5-12VDC3 maximum rating, powered via G+		 <52uA (1 measurement/hour) UART, I2C 11.80mm x57.15x50.80 0-50 °C ~180 USD https://www.co2meter.com/products/k33-environmental-logger-co2-sensor
Senseair K30 NDIR 0-5000 ppm Up to 10000 ppm extended range ± (30 ppm +3% of reading)1 (Extended range+10% of reading) 4.5 - 14.0 V DC maximum rating 40 mA average Analog, UART 51 x 58 x 12 0-50 °C ~78 USD https://www.co2meter.com/products/k-30-co2-sensor-module
MH-Z19 NDIR 0 – 0.5% VOL optional ± (50ppm + 5% reading value) 3.6 ~ 5.5 V DC < 18 mA UART, PWM 33 mm x 20 mm x 9 mm (LxWxH) 0 ~ 50 ℃ ~34 USD https://www.amazon.com/MH-Z19-MH-Z19B-Sensor-Infrared-0-5000ppm/dp/B07VCS9VBM
SCD40/41 Photoacoustic NDIR sensor technology PASens® SCD40: 400 – 2,000 ppm, SCD41: 400 – 5,000 ppm SCD40: ±(50 ppm + 5% of reading) for 400 – 2,000 ppm; SCD41: ±(50 ppm + 2.5% of reading) for 400 – 1,000 ppm, ±(50 ppm + 3% of reading) for 1,001 – 2,000 ppm, ±(40 ppm + 5% of reading) for 2,001 – 5,000 ppm 2.4 – 5.5 V 5 sec: 11 – 15 mA, 30 sec: 3.2 – 3.5 mA (5V) Digital I2C 10.1 x 10.1 x 6.5 mm3 -10 – 60 °C SCD41: ~50USD, SCD40: ~45USD https://www.adafruit.com/product/5190
SCD30 NDIR CO2 sensor technology 400 ppm – 10,000 ppm ± (30 ppm + 3%MV) 3.3 V – 5.5 V 19 mA @ 1 meas. per 2 s. UART, I2C 35 mm x 23 mm x 7 mm 0 – 50°C ~59 USD https://www.adafruit.com/product/4867
Murata IMG-CA0012-00 Dual Wavelength NDIR 0 – 2,000 ppm / 0 – 3,000 ppm ±(50ppm + 5% of reading); Typ. ±(30ppm + 2.5% of reading) AC/DC 24V, DC 12V Power: Avg. 0.5W / Max. 2.0W Analog 0 – 5V 67 x 92 x 20mm 0 – 50 ℃ ~330-450 USD https://octopart.com/search?q=IMG-CA0012-00&currency=USD&specs=0
Amphenol T6613-5k NDIR 0-5000 ppm ± (30 ppm + 5%MV) 5 VDC 0.90 Watts peak, 0.165 Watts average Analog 0-4VDC, I2C UART 57.15 mm X 34.67 mm X 15.24 mm 0℃ to 50℃ ~80-90 USD https://www.mouser.com/ProductDetail/Amphenol-Advanced-Sensors/T6613-5K?qs=kuz%252BBOU0nbaGhguTJzCo3w%3D%3D
Infineon PASCO2V01 PAS 0-32000 ± (30 ppm + 3%MV) 3-3.6 VDC, 10.8-13.2 VDC 30mW Average I2C, UART, and PWM 13.8 x 14 x 7.5 mm3 0 – 50 ℃ ~37 USD https://www.mouser.com/ProductDetail/Infineon-Technologies/PASCO2V01BUMA1?qs=tlsG%2FOw5FFi%2F2GzH4aKc4g%3D%3D&mgh=1
Senseair S8 Commercial NDIR 0-10000 ppm ± (30 ppm + 3%MV) 4.5-5.25V 300mA peak, 30mA average UART, Modbus 33.9 x 19.8 x 8.7 mm3 0 – 50 ℃ ~47 USD https://www.co2meter.com/products/004-0-0010-senseair-s8-commercial-co2-sensor