Created
September 15, 2024 22:46
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| #!/bin/bash | |
| set -euo pipefail | |
| if [[ $# != 1 ]]; then | |
| echo "Usage: $0 <ADDRESS>" >&2 | |
| exit 1 | |
| fi | |
| MAC_ADDRESS=$1 | |
| # microclimate=> create table temperature (time timestamptz default CURRENT_TIMESTAMP, temperature_centicelsius smallint); | |
| listen_temperature() { | |
| stdbuf --output=L gattcat notify "$MAC_ADDRESS" 181A 2A6E \ | |
| | stdbuf --output=L tee /tmp/temperature.log \ | |
| | stdbuf --output=L grep 0000: \ | |
| | stdbuf --output=L awk "{ print \"INSERT INTO temperature (temperature_centicelsius) VALUES (x'\" \$3 \$2 \"'::int);\" }" \ | |
| | stdbuf --output=L tee /tmp/temperature.sql \ | |
| | psql --dbname microclimate | |
| } | |
| # microclimate=> create table humidity (time timestamptz default CURRENT_TIMESTAMP, humidity_percent smallint); | |
| listen_humidity() { | |
| stdbuf --output=L gattcat notify "$MAC_ADDRESS" 181A 2A6F \ | |
| | stdbuf --output=L tee /tmp/humidity.log \ | |
| | stdbuf --output=L grep 0000: \ | |
| | stdbuf --output=L awk "{ print \"INSERT INTO humidity (humidity_percent) VALUES (x'\" \$3 \$2 \"'::int);\" }" \ | |
| | stdbuf --output=L tee /tmp/humidity.sql \ | |
| | psql --dbname microclimate | |
| } | |
| gattcat discover "$MAC_ADDRESS" | |
| echo Discovery completed. | |
| tail -F /tmp/{temperature,humidity}.{log,sql} & | |
| listen_temperature & | |
| sleep 10 | |
| listen_humidity & | |
| wait |
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