Difference between revisions of "CO2 Soil Respiration Chamber"

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Using the MH-Z19 CO2 sensor PWM readout, simple arduino code:
 
Using the MH-Z19 CO2 sensor PWM readout, simple arduino code:
 
* https://electronics.stackexchange.com/questions/262473/mh-z19-co2-sensor-giving-diferent-values-using-uart-and-pwm
 
* https://electronics.stackexchange.com/questions/262473/mh-z19-co2-sensor-giving-diferent-values-using-uart-and-pwm
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'''CCS BME combo'''
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https://learn.sparkfun.com/tutorials/ccs811bme280-qwiic-environmental-combo-breakout-hookup-guide#resources--going-further
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This one I ordered 2.... but check I2C adress
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* #define CCS811_ADDR 0x5A //Alternate I2C Address
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* myBME280.settings.I2CAddress = 0x76;
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https://www.tindie.com/products/onehorse/air-quality-sensors/

Revision as of 17:05, 4 April 2018


More about CO2 sensors:

MH-Z16:

This page is about the MH-Z19 CO2 sensor and some experiments done with it:

Using the MH-Z19 CO2 sensor PWM readout, simple arduino code:

CCS BME combo

https://learn.sparkfun.com/tutorials/ccs811bme280-qwiic-environmental-combo-breakout-hookup-guide#resources--going-further

This one I ordered 2.... but check I2C adress

  • #define CCS811_ADDR 0x5A //Alternate I2C Address
  • myBME280.settings.I2CAddress = 0x76;

https://www.tindie.com/products/onehorse/air-quality-sensors/