diff --git a/.gitignore b/.gitignore
index 4c5ca30..68eff0a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,8 @@
 *.pyc
 *.swp
 .vscode
-__pycache__
\ No newline at end of file
+__pycache__
+*.ini
+
+mijia/*
+miflora/*
diff --git a/README.md b/README.md
index 4842580..bfe4a31 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,17 @@
-Mi Flower Care & Temp-Humidity sensor
+# Mi Flower Care & Temp-Humidity sensor
 
+## Config file
 
+save it as `my.ini`
+
+    [dynamodb]
+    region_name = ap-southeast-1
+    table = iot-logger
+
+## AWS Credentials
+
+You have to save credentials in ~/.aws/credentials
+
+    [default]
+    aws_secret_access_key = ...
+    aws_access_key_id = ...
diff --git a/dynamo.py b/dynamo.py
new file mode 100644
index 0000000..1173646
--- /dev/null
+++ b/dynamo.py
@@ -0,0 +1,95 @@
+import sys
+import boto3
+import arrow
+import json
+import decimal
+import configparser
+
+from mijia.mijia.mijia_poller import MijiaPoller, \
+    MI_HUMIDITY, MI_TEMPERATURE, MI_BATTERY
+from miflora.miflora.miflora_poller import MiFloraPoller, \
+    MI_CONDUCTIVITY, MI_MOISTURE, MI_LIGHT
+
+config = configparser.ConfigParser()
+try:
+    config.read('my.ini')
+    region_name = config['dynamodb']['region_name']
+    table = config['dynamodb']['table']
+except:
+    print('Config file read failed')
+    sys.exit(1)
+
+dynamodb = boto3.resource('dynamodb', region_name=region_name)
+table = dynamodb.Table(table)
+
+
+def flowercare(mac_addr, poller):
+    temperature = poller.parameter_value(MI_TEMPERATURE)
+    battery = poller.parameter_value(MI_BATTERY)
+    light = poller.parameter_value(MI_LIGHT)
+    moisture = poller.parameter_value(MI_MOISTURE)
+    conductivity = poller.parameter_value(MI_CONDUCTIVITY)
+    firmware = poller.firmware_version()
+
+    print('Flower care {}'.format(mac_addr))
+    print("Temperature: {}°C".format(temperature))
+    print("Moisture: {}%".format(moisture))
+    print("Light: {} lux".format(light))
+    print("Fertility: {} uS/cm".format(conductivity))
+    print("Battery: {}%".format(battery))
+
+    response = table.put_item(
+        Item={
+            'device': mac_addr,
+            'timestamp': arrow.get().naive.isoformat(),
+            'data': {
+                'temperature': decimal.Decimal('{}'.format(temperature)),
+                'battery': decimal.Decimal('{}'.format(battery)),
+                'light': decimal.Decimal('{}'.format(light)),
+                'moisture': decimal.Decimal('{}'.format(moisture)),
+                'conductivity': decimal.Decimal('{}'.format(conductivity)),
+            },
+            'info': {
+                'sensor': 'Xiaomi Mi Flora',
+                'firmware': '{}'.format(poller.firmware_version()),
+            },
+        }
+    )
+    return response
+
+
+def mijia(mac_addr, poller):
+    temperature = poller.parameter_value(MI_TEMPERATURE)
+    battery = poller.parameter_value(MI_BATTERY)
+    humidity = poller.parameter_value(MI_HUMIDITY)
+    firmware = poller.firmware_version()
+
+    print('Mijia {}'.format(mac_addr))
+    print("Temperature: {}°C".format(temperature))
+    print("Humidity: {}%".format(humidity))
+    print("Battery: {}%".format(battery))
+
+    response = table.put_item(
+        Item={
+            'device': mac_addr,
+            'timestamp': arrow.get().naive.isoformat(),
+            'data': {
+                'temperature': decimal.Decimal('{}'.format(temperature)),
+                'battery': decimal.Decimal('{}'.format(battery)),
+                'humidity': decimal.Decimal('{}'.format(humidity)),
+            },
+            'info': {
+                'sensor': 'Mijia',
+                'firmware': '{}'.format(firmware),
+            },
+        }
+    )
+    return response
+
+def save_data(mac_addr, device, poller):
+    if device == 'flora':
+        return flowercare(mac_addr, poller)
+    elif device == 'mijia':
+        return mijia(mac_addr, poller)
+    else:
+        return False
diff --git a/read.py b/read.py
index 1e6dbcf..79e47af 100644
--- a/read.py
+++ b/read.py
@@ -1,19 +1,38 @@
-from .mijia.mijia.mijia_poller import MijiaPoller, \
-MI_HUMIDITY, MI_TEMPERATURE, MI_BATTERY
-from .miflora.miflora.miflora_poller import MiFloraPoller, \
-    MI_CONDUCTIVITY, MI_MOISTURE, MI_LIGHT
+from os import sys, path
 
 
-poller = MiFloraPoller("C4:7C:8D:66:2B:80")
+USAGE = '''
+python3 read.py [device] <mac-address>
 
-print("Mi Flora: " + address)
-print("Firmware: {}".format(poller.firmware_version()))
-print("Name: {}".format(poller.name()))
+DEVICE:
+  flora     Mi Flower Care
+  mijia     Mijia Temperature & Humidity sensor
 
+'''
 
+def UsageAndExit(msg):
+    if msg:
+        print(msg)
+    print(USAGE)
+    sys.exit(0)
 
-poller = MijiaPoller("4C:65:A8:D5:66:D4")
+if __name__ == '__main__' and __package__ is None:
+    sys.path.append(path.dirname(path.dirname(path.abspath(__file__))))
+    from dynamo import save_data
+    argv = sys.argv[1:]
+    if len(argv) != 2:
+        UsageAndExit()
 
-print("Mijia: " + address)
-print("Firmware: {}".format(poller.firmware_version()))
-print("Name: {}".format(poller.name()))
+    supported_devices = ['flora', 'mijia']
+    if argv[0] not in supported_devices:
+        UsageAndExit("Unsupported devices")
+
+    device, mac_addr = argv
+    if device == 'flora':
+        from miflora.miflora.miflora_poller import MiFloraPoller
+        poller = MiFloraPoller(mac_addr)
+    elif device == 'mijia':
+        from mijia.mijia.mijia_poller import MijiaPoller
+        poller = MijiaPoller(mac_addr)
+
+    save_data(device, poller)
diff --git a/requirements.txt b/requirements.txt
index 8cfbeb0..79cd9b6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,3 @@
 bluepy
+boto3
+arrow