This module is a knock sensor. It sends out signals which can be read with a microcontroller like Arduino. It is suitable for building projects like electronic drums, and sensing other kinds of vibration. It can be used in anti-theft projects and noise detection systems.
The Arduino Nano is a full featured breadboard-friendly Arduino board. It is based on an Atmega 328 microcontroller. Fully programmable with Arduino IDE
The MQ-8 hydrogen gas sensor, allows hydrogen gas concentrations to be measured. It has a sensitivity of 100-10000ppm. The Output is simply connected to an ADC via a load resistor
This product is a 1-channel relay module board with LED indicators, It can be controlled by microcontrollers such as Arduino, AVR, PIC, ARM any other microcontroller operating at 5V.
With this relay you can easily control electrical appliances, lights, etc.
Features
Diode protected input
This relay module is 5V active low.
It is an 1-channel relay interface board, which can be controlled directly by a wide range of microcontrollers.
It is also able to control various appliances and other equipment with large current.
Relay output maximum contact is AC250V 10A and DC30V 10A.
Can be connected directly to microcontoller GPIO pins.
Working status indicator lights are conducive to the safe use.
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