The ESP32 that I went for is specifically the ESP32-DevKitC, which is easy to find, cheap, and compatible with most things you'll throw at it. It supports Wi-Fi and Bluetooth, with a notable aspect of ...

This paper presents an integrated ultra-low power (ULP) analog front-end (AFE) for motion sensing applications with off-the-shelf passive infrared (PIR) sensors. Existing PIR-sensor-based motion ...

In recent years, the use of energy harvesting (EH) sensors has led to the proposal of activity sensing systems that are easy to install and do not require maintenance such as battery replacement. In ...

arduino relay led-controller mobile-app bluetooth temperature-monitoring arduino-nano arduino-uno convertor thermistor pir-sensor ldr-sensor mitappinventor fan-controller alarm-control mitapp ...