### Instruction:

Extract the cause and effect entities from the following sentence:
As an example, an increasing number of hobbyists that want wireless battery-powered devices buy ready-to-use ZigBee modules [14]

### Assistant:

VARIABLE: an increasing number of hobbyists
CONDITION: buy ready-to-use ZigBee modules
CAUSE_1: want wireless battery-powered devices
NOT_RELEVANT: As an example
EFFECT_1: buy ready-to-use ZigBee modules
KEYWORD: that

