If you want to get started with motion sensors and the like, ESPHome makes it incredibly easy to build your own sensors.

Both the ESP8266 and ESP32 have deep-sleep modes, a ‘sleep’ mode where the state is preserved, a ‘CPU only’ mode that turns the RF off, and various measures for sending and receiving a packet.

The Luanode For ESP8266 and ESP32 is a WiFi enabled System On a Chip (SoC), provided by Espressif, for Internet of Things (IoT). its developer explains more about the inspiration design and ...

The company behind the ESP8266, Espressif, is not one to rest on their laurels, and for several months they’ve been working on the next generation of powerful WiFi-enabled tiny, cheap systems.