Overview
You can see the current oxygen concentration from reading the voltage values output proportional to the concentration of oxygen on the oxygen concentration linear characteristic graph. It’s suitable for detecting oxygen concentration in the environment. Grove - Gas Sensor(O2) is an organic reaction module and it provides a small current in relation to the amount of O2 in the air, hence we don’t need to provide an external power.
Features
- High-precision
- High sensitivity
- Wide linearity range
- Strong anti-interference ability
- Extraordinary reliability
Tech specs
Specification
|
Items |
Parameter |
|
Measurement Range |
0-25% |
|
Detect Life |
two years |
|
Sensitivity |
0.05~0.15 mA (in air) |
|
Temperature Range |
-20 oC~50 oC |
|
Preheat Time |
20 minutes |
Get Inspired
While taking photos today is normally a digital affair, there is a wealth of visual information stored on film negatives. Digitization is possible, but it tends to be rather time-intensive, so photographer/hacker Seckin Sinan Isik decided to automate the process. His setup uses a film carrier augmented with a stepper motor and belt drive to advance the 35mm film under a tripod-mounted digital camera. This is controlled by an Arduino Nano, with the camera’s view shown via a video capture device on a nearby computer. In one mode, the user can adjust the film position semi-manually using pushbuttons, then scan the negative. The whole process can also be automated, with a Python computer vision routine. More details on the project can ben found in Isik's PetaPixel article here.
