3e10e27c85
In order to make edits to class readable i commit this mostly white space edit. Further more it removes a few application specific or testing lines.
15 lines
1.1 KiB
Markdown
15 lines
1.1 KiB
Markdown
# RPI_SGP30
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Program to read eCO_2 and TVOC from the [SGP30 sensor](https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/9_Gas_Sensors/Sensirion_Gas_Sensors_SGP30_Datasheet_EN.pdf). Based on the smbus2 i2c library for ease of use.
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It currently lacks support for many features features and is more of a crude demo than a proper library.
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## Features that are known to be missing (listing in rough order of importance):
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* Proper structuring of the code
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* CRC support
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* reading raw-values
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If you have the AdaFruit board with built in level shifters and voltage regulator it is should work if you just plug in [SDA to pin 3, SCL to pin 5, VCC to pin 17 and GND to pin 20](https://pinout.xyz/pinout/i2c). You should then be able to find the SGP30 an address 0x58 using `i2cdetect -y 1`. If you get an error message you probbably need to enable i2c in the kernel using [`raspi-config` and reboot](https://learn.sparkfun.com/tutorials/raspberry-pi-spi-and-i2c-tutorial)
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After 12 hours of run time the base-line data is saved once every hour as per the "device driver integration guide". The data is saved as json to ~/sgp_config_data.txt
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