Electric blanket

Have you ever wonder how an electric blanket works?

Well, Personally I have not wonder that because I Thought had an idea about the basis of this common device. But some days ago somebody give me a small electric blanket and suddenly it stops working. And, you known me, if something can be striped down, it will be striped down!

Here the pics and the things I saw.

Accelerometer LIS3LV02DL controlled by a dsPIC, I2C communication

This post describe the basic data acquisition of an accelerometer LIS3LV02DL over I2C bus using a dsPIC30F3012.
This tri-axial accelerometer has a 12 or 16 bit digital output and can be interfaced using SPI or I2C communication.
The circuit employed is a very simple one, The dsPIC is connected to the accelerometer LIS3LV02 via I2C using the B7 and B6 pines. The dsPIC reads the data and send the results in ascii format to the PC using the bluetooth module KC21.