The website allow you to configure the minimum and maximum levels (for a full and empty tank), so the level can be shown in percentage. Also the tcp/ip settings can be configured.
This project was created at the second Belgian Arduino Jam Gent by:
- Jo3ri C (http://www.jo3ri.be/) Check this site for more information about the included webserver
- Erik DC
- Wim DB
Step 1: Main module
Directly attached is the URM37 ultrasonic sensor from DFRobot (ethernet cable is used as extension lead). The URM37 is used in TTL mode, so only 4 wires are need (2 for power + 2 for data)
Also on the main board is the XBee Explorer (https://www.sparkfun.com/products/9132), that takes care of the 3.3 to 5V conversion, and receives the data from the wireless sensor.