https://github.com/agners/micropython-sgp40

MicroPython I2C driver for SGP40 VOC sensor module
https://github.com/agners/micropython-sgp40

Last synced: 2 months ago
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MicroPython I2C driver for SGP40 VOC sensor module

• Host: GitHub
• URL: https://github.com/agners/micropython-sgp40
• Owner: agners
• License: mit
• Created: 2020-11-01T19:20:37.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2020-11-01T19:22:09.000Z (over 3 years ago)
• Last Synced: 2024-03-01T07:31:17.701Z (4 months ago)
• Language: Python
• Size: 2.93 KB
• Stars: 3
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-micropython - micropython-sgp40 - MicroPython I2C driver for SGP40 VOC sensor module. (Libraries / Sensors)

README

        
# Sensirion SGP40 VOC Sensor I2C driver for MicroPython

Sensirion SGP40 is a digital VOC (volatile organic compound) sensor. This

is a I2C driver written in Python 3 for MicroPython.

## Getting Started

### Prerequisites

* Sensirion SGP40 Sensor Module

* MicroPython board with I2C interface

### Wiring

Wire the I2C bus to the I2C bus on your MicroPython board. This is an example

using the Pyboard D:

| Pyboard       | SGP40         |

| ------------- |---------------|

| X15 (3V3)     | VDD           |

| X14 (GND)     | GND           |

| X9            | SCL           |

| X10           | SDA           |

### Usage

This example reads the measurements in a continous loop:

```

import time

from machine import I2C, Pin

from sgp40 import SGP40

i2cbus = I2C(1)

sgp40 = SGP40(i2c, 0x59)

while True:

    sgp40.measure_raw()

    time.sleep(1)

```

This returns raw data from the sensor. The data is meant to be processed by

the Sensirion specific VOC Algorithm, which returns air quality reflected by

an index.

## Built With

* [MicroPython](http://micropython.org/)

* [SGP40 Sensor Module](https://www.sensirion.com/en/environmental-sensors/gas-sensors/sgp40/)

## License

This project is licensed under the MIT License - see the

[LICENSE](LICENSE) file for details