Sensor

Arduino Nano V3.0 is a development board similar to Arduino UNO. The difference is that the Nano has a smaller size. Arduino NanoV3.0 is a development board based on ATmega328P. It can be inserted directly into the breadboard. Arduino Nano is very similar to Arduino Uno. The difference between it and Uno is that the Nano does not have a DC voltage supply interface, and the Nano is connected to the computer through a Mini-B USB interface.

“Infrared proximity switch is a photoelectric switch sensor that integrates transmitting and receiving.
The output of digital signal is accompanied by the indicator light on the back of the sensor turning on and off, and the detection distance can be adjusted according to requirements.
The sensor has the characteristics of long detection range, low interference from visible light, cheap price, easy assembly, and convenient use. It can be widely used in many occasions such as robot obstacle avoidance, interactive media, and industrial automation assembly lines. “

This module is an Arduino level switch that allows people to clearly recognize high and low levels.

This module is an Arduino-compatible 38KHz infrared emission sensor that can emit a standard 38KHz modulated signal. By programming the Arduino, the command operation of the 38KHz IR signal receiving device can be realized. Used in conjunction with Arduino and IR Receiver Module, infrared wireless communication can be achieved.

This module is a fan module that can be used with other small modules for some interesting applications (electric fans, heat dissipation, propellers). Not only can it be switched through the digital port of Arduino, but the speed can also be adjusted through PWM. Usually the port current of Arduino is too weak to drive the motor, so we integrate the driver and motor on this module and directly connect it to the main control board. Helped save a lot of trouble. Our common fire extinguishing trolleys can be installed with this fan for operation.

The liquefied gas sensor uses MQ-5 gas sensor, which can detect alcohol very sensitively. The 3P sensor connection line can be directly plugged into the Arduino uno controller for easy programming. Combined with the buzzer module and relay module, you can make products such as liquefied gas leak alarms. It is an ideal sensor to make indoor air meet environmental protection standards.

The natural gas sensor uses MQ-4 gas sensor, which can detect alcohol very sensitively. Through the 3P sensor connection line, it can be directly plugged into the Arduino uno controller for easy programming. Combining the buzzer module and relay module, you can make products such as natural gas leak alarms. It is an ideal sensor to make indoor air meet environmental protection standards.

4*4 matrix keys, also known as column keyboard, use 4 I/O lines as row lines and 4 I/O lines as column lines to form a keyboard. A button is set at each intersection of the row line and the column line, so that there are 4*4 keyboard keys. This row-column keyboard structure can effectively improve the I/O port utilization of the microcontroller system.

The XY sensor module uses the high-quality metal rocker potentiometer on the PS2 game controller. The module has two analog outputs, and the output values correspond to the (X, Y) dual-axis offsets. The module integrates a power indicator light that can display the working status; the coordinate indicator is clear, concise, and accurately positioned. It can be used to easily control the movement of objects in the two-dimensional space, so it can be programmed through the controller to complete various remote control functions.

This sensor uses DHT11, which can detect the temperature and humidity of the surrounding environment.
Temperature and humidity collection range: 20%-95% (range from 0 degrees to 50 degrees)
Humidity measurement error: ±5%
Temperature measurement range: 0 degrees to 50 degrees;
Temperature measurement error: ±2 degrees