LilyPad Accelerometer ADXL335 SparkFun LilyPad Accelerometer ADXL335 is a three-axis accelerometer for the LilyPad system. Based on the Analog Devices ADXL335 MEMS accelerometer, SparkFun LilyPad Accelerometer can detect joint movement, inclination, and vibration. The ADXL335 outputs a 0V to 3V analog signal on the X-, Y-, and Z-axis.