Week 4

This week we have all the components arrived,

The new equipment are:
1x USB interface for Xbee with a FTDI chips.
1x Ardiuno UNO board
1x Ardiuno UNO shield

We finally finish our own model of wireless sensor network,

This model is an example of point-to-point wireless network. There is an Ardiuno board and Xbee connected to the sensor which are used as the sending part, in this part, a digital signal is sending to the Ardiuno and convert to serial data, the microcontroller convert the data into 10 bit package and sent to the Xbee on the receiving side every clock cycle. The receiving part only contains a Xbee with USB interface, there is a FTDI chips over the USB interface which is used to  convert the 10 bit package into the serial data which could read by PC.

This model is simpler than the model we have made last week and becoming much more convenient.

The temperature displayed successfully on the X-CTU program as last week.

However our supervioser gives us a suggestion which ask us to make a program running on PC which can control the data receicing and sending process.