News — Sensor

Student project combines CO2 sensor, Arduino Uno

Student project combines CO2 sensor, Arduino Uno
For students interested in climate and air quality CO2Meter supplied CO2 sensors for an Arduino project measuring carbon dioxide levels both indoors and in the community.

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Raspberry Pi and WiFi App Notes for S8 Sensor

Raspberry Pi and WiFi App Notes for S8 Sensor

The engineers here at CO2Meter have developed application notes for SenseAir’s S8 small-footprint CO2 sensor. These app notes with source code make it easy to communicate with the S8 using two of the most popular microcontrollers on the market today. Learn more about the S8 CO2 sensor. AN168: Raspberry Pi to SenseAir S8 CO2 Sensor via UART Download AN168 here. Download the source files here. the Raspberry Pi 3 is a popular credit card-sized computer used in many maker applications. The documentation and included python source code files make it easy for even first-time users to communicate with the S8...

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K-30 CO2 Sensor Troubleshooting with Arduino or Raspberry Pi

K-30 CO2 Sensor Troubleshooting with Arduino or Raspberry Pi

Customers using SenseAir's K-30 CO2 sensor with an Arduino micro controller or the Raspberry Pi occasionally see the sensor "lock up" during use. It appears that the sensor sends negative data and quits working. After unplugging the sensor from power momentarily, it works again. This seems to be a random problem. Fortunately, we have been able to recreate the problem, and have several solutions. Low Power The most common issue is power. 5VDC is the absolutely required minimum voltage. If you are powering from a USB port, the nominal 5.25V will drop with other USB devices on the circuit, causing an error. If...

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CO2 Oxygen Sensors on Drone

CO2 Oxygen Sensors on Drone

Reading CO2 and oxygen levels in remote areas can be challenging. That's why we were excited to see CO2Meter’s S8 CO2 sensor and UV Flux oxygen sensor installed on a drone for high-altitude atmospheric testing. The project is the brainchild of RYF Technologies.  Last year, they began testing CO2 sensors to create a handheld CO2 monitor for the Chilean market. A requirement for the new monitor was that it used a built-in barometric sensor to automatically adjust the CO2 level for extreme changes in altitude in the Andes Mountains. The monitor uses a built-in micro pump to quickly change the...

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Troubleshooting GasLab® Driver Installation

Troubleshooting GasLab® Driver Installation

If you cannot communicate between your sensor module or CO2 meter and the GasLab® Software on your computer, the problem may be caused by Windows not recognizing the correct drivers needed to create a chain from USB -> FTDI -> UART in order to communicate with the device. The drivers create a virtual COM port. If the device is plugged in before GasLab is installed, the correct drivers will not be found, even if GasLab is installed later. The solution is to uninstall the old (usually incorrect) drivers manually, install GasLab if it is not already installed, then plug your...

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