Description
The STEVAL-IHM037V1 demonstration board implements speed control for an induction motorbased ceiling fan using a remote control. Traditionally, fan speed is controlled using a Triacbased regulator, which must be operated manually. The STEVAL-IHM037V1 replaces the manual regulator with a remote control-based solution. Two pushbuttons are also provided to increase or decrease fan speed. Speed is regulated by controlling the firing angle of a Triac (T435x) with the STM8S003x microcontroller.

Features
■ Operating voltage: 180-250 VAC
■ Low-cost capacitive power supply for the STM8S003F3 (receiver), and CR2032 coin cell battery for the STM8L101F2 (IR remote)
■ Triac-based speed control with firing angle
■ IR receiver for speed control through RC5 remote
■ Two pushbuttons for speed change
■ RoHS compliant