61 lines
1.7 KiB
Markdown
61 lines
1.7 KiB
Markdown
# dht22 Temperature Stats
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## Raspberry Pi
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### Dependencies
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`apt install mariadb-server mariadb-client libmariadbclient-dev libmariadbclient-dev-compat libconfig-dev wiringpi libcurl4-openssl-dev (-s)`
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### mySQL
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Login: `mysql --user=root --password=password`
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Creating new user: `create user 'dhtuser'@'localhost' IDENTIFIED BY 'raspberry';`
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Permissions: `grant all privileges on *.* to 'dhtuser'@'localhost';`
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Create database: `create database dhtstats;`
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Use database: `use dhtstats`
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Create new table:
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```
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CREATE TABLE stats (id MEDIUMINT NOT NULL AUTO_INCREMENT, node_id int not null, pin int not null, humidity FLOAT NOT NULL, temperature FLOAT NOT NULL, isoutside int not null, gm3 float not null, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, PRIMARY KEY (id) );
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```
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and
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```
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CREATE TABLE average_stats (id MEDIUMINT NOT NULL AUTO_INCREMENT, humidity FLOAT NOT NULL, temperature FLOAT NOT NULL, gm3 float not null, isoutside int not null, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, PRIMARY KEY (id) );
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```
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Show all entries in table: `select * from stats;` or `select * from average_stats;`
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### Compile & Install
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To compile and install humidityPi use this oneliner: `make && make install`
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### Configuration
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#### Settings
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The settings file ist located under `/etc/humiditypi/settings.cfg`
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#### Cronjob
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If you like to run humidityPi in a desired time intervall you can enable a cronjob by entering `crontab -e` and paste the following to the bottom of the text file:
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``` bash
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#Cronjob that will repeat every minute
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#Pipe the output to /dev/null to suppress mails from cron
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* * * * * humiditypi > /dev/null
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```
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### ESP-8266
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[aRest](https://github.com/marcoschwartz/aREST)
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# Used sources
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[cJSON](https://github.com/DaveGamble/cJSON)
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