KeypadPhysical Dimensions

Keypad Pin Layout and Combinations

PCB to Keypad Connections

LCD Physical Dimensions

LCDPin Layout and Block Diagram

PCB to LCD Connections

PCB Error – A and K Labels are SwappedSolution – Cross Wires Connecting PCB

and LCD

How it should be labeled

AccelerometerPhysical Dimensions

AccelerometerBlock Diagram

AccelerometerOrientation and Corresponding Outputs

Axis Orientation

Gravity ↓

Side Orientation

Flat Orientation

PCB to Accelerometer Connections

Z

YX

GND

3.3V