add ads1115 sensor

docker-compose.yml

@@ -33,3 +33,13 @@ services:
     depends_on:
       - influxdb
       - grafana
+  ads1115:
+    build: ./sensors/ads1115
+    devices:
+      - "/dev/i2c-1"
+    restart: always
+    environment:
+      - INFLUX_HOST=influxdb
+    depends_on:
+      - influxdb
+      - grafana

sensors/ads1115/Dockerfile

+FROM python:3
+
+RUN mkdir -p /usr/src/app
+COPY *.py /usr/src/app
+COPY requirements.txt /usr/src/app
+WORKDIR /usr/src/app
+
+RUN python3 -m pip install -r requirements.txt
+
+CMD ["python3", "/usr/src/app/ads1115_influx.py"]
\ No newline at end of file

sensors/ads1115/ads1115_influx.py

+import time
+import os
+import ADS1115 as ads1115_lib
+from influxdb import InfluxDBClient
+
+influx_host = os.getenv('INFLUX_HOST', 'localhost')
+influx_dbname = os.getenv('INFLUX_DBNAME', 'multi-sense')
+influx_client = InfluxDBClient(host=influx_host, database=influx_dbname)
+influx_client.create_database(influx_dbname)
+
+adc = ads1115_lib.ADS1115()
+
+# Add timestamp to measurement
+# Accumulate measurement to write multiples points
+
+while True:
+    measurement = [
+        {
+            'measurement': 'ads1115',
+            'fields': {
+                'ain0': adc.readADCSingleEnded(),
+                'ain1': adc.readADCSingleEnded(1),
+                'ain2': adc.readADCSingleEnded(channel=2, sps=16),
+                'ain3': adc.readADCSingleEnded(channel=3, pga=1024, sps=16)
+            }
+        }
+    ]
+    influx_client.write_points(measurement)
+    time.sleep(1)
+

sensors/ads1115/requirements.txt

+influxdb==5.2.1
+ADS1115==0.2.1

sensors/cpu_load/Dockerfile

 FROM python:3
 
 RUN mkdir -p /usr/src/app
-COPY cpu_load.py /usr/src/app
+COPY *.py /usr/src/app
 COPY requirements.txt /usr/src/app
 WORKDIR /usr/src/app