How many times have you stubbed your toe on a piece of furniture while looking for a light switch in a dark room? Let's make that switch voice controlled. The great thing about SpeakUp click is that it works as a standalone device because it has an STM32 ARM® Cortex®-M4 MCU on it. To use it as a light switch, or as an electrical switch for any other appliance, you just have to combine it with a relay click. It will take 15 minutes to set it all up. It's ridiculously easy.

!!WARNING!!

Hazardous voltages in electrical equipment can cause severe personal injury or death.
This project includes a relay click which has some exposed components that may be connected to hazardous line voltages.Take extreme care to protect against shock.
Do not touch the board while the power supply is on.
Always work with another person in case an emergency occurs.