This project allows you to monitor the level of 2 containers filled with liquid. The levels can be shown on a website. The example below has one sensor connected by wire, and another sensor connected wirelessly by XBee.
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
The main module is composed of an Aduino Ethernet board (or an arduino with Ethernet shield).
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.