Hi I am planning to design a home automation device. It is just a simple LED lamp that can be turned on or off from the internet. I am looking for the cheapest possible way to build it.
I have used ESP8266 and nodemcu previously, but these IC's from espressif look very costly to me. I do not want any SPI or I2C on the wifi module. I only need 1 GPIO pin with wifi ability. If possible a low power one will be nice.
So what are my options here other than ESP. Or do you know any cheap version/part number in ESP?
Kindly help me out