An Accelerometer Known as G-Force Meter

The purpose of the project is to build a device that would measure or sense the acceleration or tilt on one axis and is capable of fitting onto the dashboard or hanging onto the window of a car.

There are three 7-segment LED displays that the device possesses that will show the measurement of instantaneous acceleration into 2-decimal accuracy. The brain for this project is the PIC18F452. The software will take care of the whole process wherein the A/D’s on the PIC will be used to take the data and be interpreted and then output it in a way that humans can understand on the 7-segment LEDs.

The main sensor for this project is the ADXL320 accelerometer which detects the accelerations or tilts and then outputs an analog value equivalent to the change. The output of the measured G-force in the X.XX form is displayed on the 7-segment LED and the PIC will directly control the output shown. The speed of the processor will be set to 20MHz but can also be set to 4 or 8MHz.

The LM7805 is hooked up to 9V battery for the power circuit with 10uF capacitor.

Rest of the project