Connects to Wifi
ESP8266: Wifi Module
- ESP-01: Wifi
- ESP32: Wifi/Bluetooth + Camera
Measures acceleration
Accelerometer
Detects life movement
HC-SR501 Pyroelectric Infrared Sensor Module
Detects Speed/RPM
Tachometer: Widely used for motor speed detection, pulse count, position limit, and so on.
Measures the time
Clock Module (DS3231)
Electrical switch
Relay Module: Used to turn anything on or off.
Makes sound
Passive Buzzer Module: (Piezo) Play any sound based on frequencies.
Crystal Screen
Transparent OLED display.
