Relay Module (1 Channel - 5V) 7490 This will allow a microcontroller

This will allow a microcontroller to communicate with a computer and widely used in radio modification

The vibration sensor is used for sensing the impact force

3V-6V DC Supply Voltage

Its 4 pin allows for individual control of each red

passive buzzer requires an AC signal to make a sound

Relay Module (1 Channel - 5V) 7490 This will allow a microcontrollerIntroduction : It is a 1 channel relay board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc. It is also able to control various appliances and other equipment with large current. used where it is necessary to control a circuit by a low power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal.