Raspberry Pi Computing: Gas Sensors by Malcolm Maclean

Author:Malcolm Maclean [Malcolm Maclean]
Language: eng
Format: epub, pdf
Publisher: leanpub.com
Published: 2019-04-21T00:00:00+00:00

The output should look something like this;

Gas sensor measurement in progress Local current time : 2019-04-21 13:14:14 Value via ADC : 82 Voltage via ADC : 0.01875915974596971

Run this script a few times and then we can check the results in our database by starting up SQLite as follows;

sqlite3 measurements

From the SQLite prompt we can query the database to return all the records using SELECT * FROM gas; as follows;

sqlite> select * from gas; 2019-04-21 13:14:06|81|0.0210102589154861 2019-04-21 13:14:14|83|0.020009770395701 2019-04-21 13:17:32|83|0.0205100146555935 sqlite>

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